Kt120 vs kt150 current draw. So what a about a couple of KT120/KT150.
Kt120 vs kt150 current draw EL34s draw 1. Hi Fellow Audiophiles . Compare. Home; Check with your amp’s manufacturer to confirm the KT150 tube will work in your amp. 0 Amps for the KT150. There's a discussion in another post further down about the Rogue Cronus Magnum integrated amp and the topic of KT120 vs KT150 power tubes came up. At this point I cannot comment on SQ as the tubes were right out of the box, all matched, but nothing broken in, so I am not in a position to comment other than to say, there is definitely more kick than with the KT120s-sounds like a much more powerful amp. I think that brings me to about 3. I am lucky that my Unfortunately, my kt88 based amplifiers were not designed to take advantage of the kt120. So replacing with an EL34 with a KT120 will allow a more clear picture of the recording to comethrough; lower distortion, greater detail. KT120 KT150 SE measurement - quick and dirty. I finally got around to trying out a quad of EL34's in my KT120 amp. 50ma showing real hope. Available as kit or built. All eight tubes are matched for current draw (47. 6A filament the KT150 is usually about 1. roscoeiii. george53. At the very least they draw more filament current than KT88s. The KT120 is a prime example. 7 to 1. For rock music, I would go with KT88. At least as far as my VS-115 amp was concerned power output increased from 115 wpc Just looking for peoples opinions and preferences for current issue kt88 a few times. If any, pls let me know Thank you Dimitris. My question, does anyone know what a kt120 actually uses for the filament current. You'll just have to do a little math to be sure the tubes are running safely. SandAndGlass, Feb 22, 2020 #56. jpg. Should get better distortion numbers at moderate power that way. The TS 6550 sounds perfect in my monoblocks. Weight: 1 lbs: I would also check on the Net as they have the bias requirements for the KT120's, another area to look for would be to ask TungSol directly. Recommend Power Tube Options vs. With its versatility with different types of output tubes, including 6550, KT88, KT90, KT120 or KT150, I just can’t decide which one’s to try. So what a about a couple of KT120/KT150. It had a great sound with 6L6 and EL34 tubes. Going from KT88 to KT120 is noticeable, but KT120s to KT150s is a striking difference. Jul 22, 2024 #1 Has anyone performed a sonic comparison between the three tubes? Do they sound exactly alike, or sonically I haven't done a live KT150 vs 300b comparison yet. Is the amp truly designed to run KT120/KT150s well? Ask the designer for the plate voltage, rec bias - check values of the tube spec vs. Google will get you there with search terms: tung-sol KT150 specs curves sell sheet or you can figure this out: www (dot) pyndt (dot No dryness with the KT120 but to me it doesn't sound natural - and worse in 70W setting. Running a KT120 or KT150 tube "cool" in an amp with lower plate voltage and low bias current, well under its optimum operating window, will have more of a sterile un-engaging sound. Our because most of the Manufacturers have gone to the new KT120, and KT150 tubes The problem is every time I've ever tried KT tubes (88's & 90's) they have sounded Glassy, and Cold in the mids I don't know if they simply took the KT88 and made it more awesome, or if there was already some Soviet tube that was essentially a more-awesome KT88 in the stack of blueprints at the factory when New Sensor took over. The system will sound This is well under the rated current levels. EL34/KT120/KT150 Push-Pull (Class -AB) Stereo Power Amplifier Price :TBA Made in Japan Designer : Mr. Billy Budapest Forum "Member" Location: America's Biggest Small Town (a. KT120 Power Tubes; KT150 Power Tubes; KT66 Power Tubes; KT77 Power Tubes; KT88 Power Tubes; KT90 Power Tubes; SV83 Tubes; Tube Boxes; Tung Sol 12AX7 ECC83 ECC83 Preamp Tube. 2020-06-25 11:44 pm #10 2020-06-25 11:44 pm #10 cheap TV tubes can deliver much more current. Previously, the 6550 "Winged C" was the tube de jure. Details; Discussions; Posts; This discussion; Message User; 1,012 posts. You might try KT88 from gold lion, awesome tube. The Tung-Sol KT120 (and KT150) tubes are new designs, basically more powerful versions of KT88 and 6550 tubes. The Tung-Sol KT170 has a power dissipation of 85 watts allowing amplifiers using a Both draw no less than 1. SinnerSaint With KT120, I would rise idle current close to 100mA four each tube. 2014-06-10 1:07 am #10 I measured performance of KT120's vs. Mar 13, 2020 KT120 longevity. the amp capability. Just got my KT150 tubes for my ARC REF75 and it was a plug and play install. It came with both the original KT120s, which have about 250 hours of use, and some after-market KT150s, My current mono amps are designed to run only KT120s or KT150s with larger transformers and higher plate voltage. pauly. NKh93CeqLQFor a Also in this case a good results mainly for the higher current, of course. The KT120 at the time was less expensive to buy than the KT88 and was slightly more overkill, so thats why I have them. With a massive plate dissipation of 70 watts, care must be taken to make sure that the bias resistor values and wattage fitted for KT88 do not allow the KT120’s to draw excessive current which could indeed lead to premature failure of the valve and equipment. Interesting, but would any current amps be able to work properly with a KT170? Simply plugging in a bigger tube doesn’t mean more power. A SE for single KT150 chassis came better but that has also been on hold. It has higher heater current draw (~20%) than typical KT88 tubes. My target for this set is around $150. What the manufacturer says: "With the new KT150, Tung-Sol continues to lead in the audio power tube, power game. OscarS. Bear in mind that KT150 will draw a little extra heater current from the mains Traffo over the KT120 , the surge current also being greater with the KT150's, in excess of 3 amp initialy, however both the KT120's and KT150's settle down after a couple of seconds drawing around 1. I liked the price and feature I got some Quicksilver Silver 88's with KT150's this summer. Their max value(if it is actually stated correctly would be 4. I have 4 amps per channel available for the kt88's and a single 6an8's. In a word: he was right and they are fantastic tubes. Valve Art 6550A - matched pair. If you wanted some headroom, a good pair of KT150 or even KT170 tubes should also work in this amp. It doesn't sound at all like an old Mullard EL34, it brighter, faster sounding, more detailed. Due to the success of the KT120 and KT150 tubes and the popularity of these tubes with High-End Audio manufacturers, the Tung-Sol KT170 tube has been developed to provide a beam tetrode with The KT120's that I have encountered with ''tired'' getters (such as the ones shown above) all seemed to suffer from limited current carrying capacity at real world operating voltages. 7A while the KT120 will draw no more than 1. FULL STOP!! The power transformer supplies the current and the tubes regulate it. Contact us . Given the age of your amps, and unknown current limits of the power transformer, i would not use KT150's. Based on my measurements it is an "extended" KT120. Bob01605 Member. 1. Need 100W per channel for the room. KT150s should also run at higher plate current for similar voltage for the best performance. Has anyone replaced a set of KT120s yet? Just wondering how long these should last as I've be Jul 14, 2013 EAR 890 and KT120. Here's the thing I keep designing the same amp. com ~$73 CDN each. Physically imposing, this tube is huge. Transformers need to be custom jobs. 0A for the KT150. I was curious if anyone out there has compared the Tung Sol KT120 vs KT 150 side by side? Does anyone out there also know a plac Audiogon The world's largest high-end audio community. We both know that c-j can be a little conservative at times in their advice. The KT150 power tube delivers a strong bass signature that adds weight tubes draw more heater current than a 12AT7. wgallupe Posts: 139 Join date: 2014-05-18 Age: 71 Location: Central Mass I'd likely revert to the KT88's. 85 to 4. 8 Amp/ KT120 and around 2 amp/ KT150 respectively. There you will find related articles and downloads such as datasheets, pin-outs, ratings, and matching information when Has anybody a decent drawing for a KT150 SE or PP amp? I would like to find a high end demanding drawing. But I to get the same output power HT needs to go up (from 440 to 600V). 5k load with 366V on the plate and 300 on G2, Currently running Gold Lion KT-88 reissues in my NOS Valves VRD amps. KT120 would be if you are anyway to go this path a much more sensible thing to do than the KT150. If the TS KT120 sounds the same, I might purchase it for longer tube life. The current score in my survey is as follows: No issue with unmodded amp using 120s or 150s I have been on fence with tube rolling in my ARC VT-80. Thread starter Roydrage; Start date Jan 12, 2017; Tags 6550c kt120 kt120z Forums. If different, could I tweak/redesign for the KT120. Not by much, maybe 5 or 10 a tube. So my output stage is PP UL with 2x6550A on each half - a total of 8 6550A's and 12A of heater current for stereo. 5A. the 4 tubes in the Ayon Spirit III) he says that they may last 10,000 hours. The two 6. 🔌 На Авито вы можете недорого купить аксессуары для аудио и видеотехники разных марок. 3 KB · Views: 766 "All the amps were designed to produce most of their power in class A, ie; the output valves are biased to draw the maximum current needed to produce the stated output power in If it was pushed to KT120 limits then you don't have an option without modding the amp to back down on how it operates the tubes. Still well within the safe zone it seems. Going from the KT150’s back to the EL34’s yields a lighter balance with a brighter, more forward and more communicative upper midrange. I ended up biasing the EL34's at 50% of their max plate dissipation, which gives these DC operating conditions: Queiscent current draw per tube: 25 mA Plate voltage: 500V Be sure to inquire with your amp’s manufacturer to confirm that the KT150 tube will work in your amp. arledgsc. Posted: Tue Apr 03, 2012 12:25 am . I'd say this is a pretty bold move by New Sensor. A little information could really help, a couple of points. I’ll likely use them for around six months then consider springing for something permanent. In some ways a I did not find the dynamics necessarily more expressive with the KT150’s but there is always an immense sense of solidity which does make them seem more dynamic and more powerful. Additional information. The use of a KT120 or KT150, where is possible, give us a better performance because the capacity to drive more current due to a lower Rp ; mainly when the trafo, at low and high frequency, has the tendence to get a lower L. All tubes carry the 90 day factory warranty against defects from date of purchase. (Remember when I built my amp, I wired pin 1 to pin 8 (suppressor grid to cathode), so that I could do this). KT120's are even better. Because the Primaluna runs the power (output) tubes so easy (8 tubes for 78 WPC vs. 3 KB · Views: 766 "All the amps were designed to produce most of their power in class A, ie; the output valves are biased to draw the maximum current needed to produce the stated output power in I measured performance of KT120's vs. The heater current on KT88 tubes is 1. From the manufacturer: “With the new KT150, Tung-Sol continues Rumor has it that the KT120 is not that robust in construction, leading Tung Sol to come out with the KT150, supposedly a similar tube to the KT120, but more robust / reliable with better life. No issues, at least day 1. I don't disagree, but this thread was about the best of two tubes for the CJ Premier 11, which does not have adjustable bias- I had been running KT120's in my TRL amps also (GT200's) and Paul had mentioned to me how impressed he was with the new 150's so I took his word on it and ordered some of the first ones to arrive here in the US. Phil . it cathode current pentode connection triode & ultralinear connection grid 1 circuit resistance fixed bias self bias bulb temperature 850 650 650 600-200 60 Go and see the doctor: Find all of our products here: our newest product line of high-end Redbase tubes, our famous premium selected tubes, and the equipment we manufacture like our Class A Converters, the Bias Master or the Silencer. By the way is a bit like buying tires that are specified for 160 mph and expecting your car to go faster. Op manual shows 40-60 for my model. 95A. Like Dislike. Joined 2010. That said and since this a thread concerning the TS and the Psvane KT120's I thought this to be a bit odd. Apart from a fairly marginal difference in terms of Cathode Filament Current and a Plate Dissipation of about ten Watts in favour of the KT150, from an electrical point of view (Anode Voltage, Impedance, The Tung-Sol KT120 (and KT150) tubes are new designs, basically more powerful versions of KT88 and 6550 tubes. That is up to . KT120 - In the spirit of Tung-Sol’s creation of the 5881 and 6550 power tubes, New Sensor Corporation released the KT120 under its Tung-Sol label in 2010. (I use only 4 @ KT150's per channel so my $$$$ was quite a bit less than yours). I will third the notion that the bass seems better with the KT120 vs the EH KT88 though, at least in my big Bogen amps. 0 mA) and Gm (6400 = 100%). My previous ARC amp was the VS-115, which came standard with the 6550Cs. 25 amps total. Just wondering if anyone else is running KT120 & KT150 at same time in their Or is the adaptive auto bias set always to a default current draw regardless of tube type get yourself a quad set of tube socket adapters from Ich geh' mal zum Doc: Hier gibt's alle Produkte der Marke TAD: die exklusiven TAD Redbase Röhren, premium-selektierte Grayplate Röhren, Equipment wie unsere Class A Converter, Bias Master oder Silencer, sowie Hallspiralen, Kondensatoren oder I am looking at getting a quad of kt120's to use in my dynaco mark III that I built. TUNG-SOL KT150 Power Tubes Tetrode High (Matched Pair) TUNG-SOL KT150 Power Tubes Tetrode High Cathode current: Pentode connection: 275mA “Due to the success of the KT120 and KT150 tubes and the popularity of these tubes with High-End Audio manufacturers, the Tung-Sol tube has been developed to provide a beam tetrode with even more power capability. The extra current draw will put too much stress on the PT's. Stick with the tried and true KT88. Not a beginners project! Voltage and current are very deadly at these levels. COSMICALIEN. Originally designed for the KT90 at 1. I think new tubes (vs Nos) would be best as well - fewer variables. KT120 vs KT150? I have recently bought a second hand ARC VSi75 amp. Выбирайте среди . 75 and 2A per tube. Just heard from my amp designer/builder. Purchase Tung-Sol KT150 vacuum power tubes online, in stock and ready to ship! That's 10W more than the already impressive Tung-Sol KT120 power tube. Somehow the KT120 doesn't sound good with rock but Jazz and Classical are wonderful, the vocal is very clear and sweet. nj pheonix KT120 vs KT150? I have recently bought a second hand ARC VSi75 amp. An easy and fun KT120 Vs KT150 (Triode operation) First, before starting on the above, let me be clear that we have no interest in how tubes sound in pentode/UL mode because this mode is not acceptable to CAT. This is how I am set up to test power tubes,as we all know darned near anything can pass a transconductance or emission test. (The tubes have similar characteristics except for plate dissipation. I have not tried it, but there are some things you should consider before attempting it: The KT120 will draw more filament current (which will put more strain upon your power transformer), take up more physical space and run hotter than a 6550 or KT88. Mar 29, 2010 According to the KT120 spec they draw about 1. Fujita SPECIFICATIONS (Pre-production) VACUUM TUBE - Stock tube set: 4 X EL34(6Ca7), 4 X 5965A (or 12AT7) You any unlinear kt120 or expensive kt150 either. The KT 120 is 50K too. It is the most powerful tube in the 6550/KT88/KT90/KT120 family, developed to improve heat dissipation and ensure optimal sound performance. Because of the But they demand more heater current (1. C. After browsing around I found people are recommending TUNG SOL KT120 as a upgrade. Virtual Systems KT120 vs Tung-Sol KT170. Y. Top . Amplifier - Tsakiridis Aeolos tube amplifierLoudspeakers - Qualio IQ - https://www. Positron. And could you imagine the price when some monkey drops your multiple KT150 or KT170 amp on the loading dock but I'm uncomfortable about their current government getting support from my purchases. 🔌 4 объявления о продаже аксессуаров для аудио и видеотехники по доступным ценам в Верхней Пышме с доставкой. ), the TUNG-SOL KT120 Power Pentodes and the more recent TUNG-SOL KT150 are practically the same. qualioaudio. In my case it's easy to see why GL KT88 was the manufacturer's stock choice, but I do still quite like KT120 on swap too. Or you don't Most well designed mains transformers will cope with the extra Heater inrush, and steady state current of KT120's, However; with the KT150's, you have to be more cautious, In my listening, I feel kt150 is much hifi than kt88 and kt120. With that said, in some brief tests between an Electro Harmonix KT88 and Tung Sol KT 120, I definitely preferred the TS KT120. It even has a fine-tuning switch for EL-34 and KT88/KT120/KT150 tube types. If I use kt120's and 6an8 I get from 3. nm_west, Mar 27, 2015 #4. In spite of fact that I enjoyed the sound of the 6550's, I bought into the audio hyperbole of They draw 1. In my current system though this makes the bass feel a bit lean. Member. 3A despite the spec saying 2A. 8amps). ) 2. 8-2A heater current, so you would be pushing it with a 4A tap including your 12at7. KT120 vs 6550 / KT88 0 Members and 1 Guest are viewing this topic. 3 Kevin affirmed this thread -- that the KT150 has incredible bass slam, very well extended highs, and well tempered, natural (not sweet) mids. You might try the EH KT90 though. KT120 vs Shuguang KT88 in my Mark IIIs. Heater current is about like KT120. Both tubes sound horrible in Pentode/UL mode and we really don’t care which one might sound less bad than the other when operated this way. Posted by AbeCollins on July 27, 2019 at 10:32:58 . nj pheonix are the KT88, KT100, KT120 and KT150 Tubes safely interchangable generally speaking in a well built tube amplifier? The KT120 and KT150 are both pentode devices and the KT88 and KT100 are described as beam tetrodes so no, I wouldn't think these can be easily interchanged even though the data sheets have the same "pin-out". When the KT120 initially came out, any call to them asking whether it could be used in their amps was answered with a definite no. Genuine KT88's can handle 100K on the grid, just check the Rating's for current production and the 6550 and KT88 recommend max of 50K. Louis,MO) And don't forget the KT150, a very high NEW!Tungsol KT150. See KT88 6550 KT120 KT150 Tube Interchangeability at I ordered a pair of KT90’s and KT120’s. Posted: Wed Mar 24, 2021 12:44 am . The 12BH7 has less gain, higher Rp than ECC99, less heater current, so the ECC99 cost more but performs better, which is our goal, is to have an overkill driver a good step above what a 6sn7gt can do When I asked Lew if he and Bill had plans on the table to build an amp based around the KT120, he replied that they were happy with their current circuit and running the tubes more conservatively. My pair of amps that run a KT120 were designed for a 6550/KT88. a. I know there are some polarized opinions on UL vs Pentode. IMO they produce closer to an ideal flat response curve. Whether kt120 the kt120 is a beam pentode power amplifier primarily designed for audio service. So for me, that's that! The only issue there might be the extra filament current draw (1. Ergo, they CANNOT be compared on the same amp. Reactions Electro-Harmonix/New Sensor open call for requests to revise/add to KT120/150/170 datasheets. It's an ad on A'gon for a Psvane amp that uses KT120's and look who makes the tubes pictured Matched Quad Tung-Sol KT150. My first and current tube amp is the MP-301 Mark III. The monster power transformer in the TU If the OP`s home constructed amp initially has plenty of filament current headroom to handle the 120/150`s higher filament current without transformer current draw stress, will Is there a switch on the PL amps that allows mixing KT120's with KT150's in PP arrangement? Or is the adaptive auto bias set always to a default current draw regardless of tube type inserted? I have played around with this I have the choice of 60 KT-150 tubes and 20 KT-120 tubes or 80 KT-150 tubes in my pair of TRL 800 amps. 839. Here is a quick an dirty excel to roughly estimate the I took a look at New Sensor's tube data sheets for both their KT120 and KT150 specifically looking at the heater current draw and there really isn't much of a difference at all. 6sn7, it is not as linear and subjectively not good. that they did not design the unit to increase the draw necessary to drive the KT120 (which draws i thought higher However I wonder how could you replace 6550 by Kt120 ( and perhaps nowadys by Kt150) in you Vt200? Which mods have KT series and 300B are the most common active device in Hi Fidelity audio industry. Joined 2014. Location: Elk Grove, CA. wgallupe. Jadis has recognised that the brand-new KT120 expands on all of the virtues of the much loved KT88/6550 workhorses that have powered so many top-flight amplifiers. Opinions on brands and 6550 vs KT88s would be welcome. Discussion in 'Audio Hardware' started by avanti1960, Feb 4, 2017. St. Designer shared "60ma is still well below the maximum rating of the KT150 tube". Thread Status: Not open for The New Sensor made Gold Lion KT77 is my current tube of choice in the family. Most amps can’t maximize a KT120 let alone a KT150’s unless they were designed with those tubes in mind. Joined: Tue Mar 27, 2007 1:21 pm Posts: 11 ObI56 is correct, the current draw is higher on the KT-120's if you amp can use them go for it. Post subject: KT120 and KT150. I couldn't tell the difference through my setup. Quoted from the from the Jadis JA120 datasheet: Jadis has adopted the KT120 valve, which will increase the power, reliability, the dynamic range and every other parameter of this milestone amplifier. The danger is losing the transformer which would retire the amps. 9A vs 1. I have tried both the kt120 and kt150, I believe I was using an Rk of 680 ohms. KT90 ( obsolete ) and KT120 are less linear then KT88. I have only tried it with the 150's. From KT150 to EL34. 5A for a 6550 for each tube), and they don't quite measure as well as a nice 6550. Be sure to click the “Additional Info” tab when viewing a specific KT88, KT90, KT120 tube. Even KT120's might draw too much filament current. Sonic Comparison between New Tung Sol 6550 vs KT120 vs KT150. cj, maybe because they remember those days of tube equipment blowing up and having problems, really values reliability. A good pair of KT120 tubes should be able to handle that bias point, I'm running them at 95ma and that's likely where I will use them. I want to clarify this is not my design, the basic recipe was posted by Kegger years ago. I sure would like to give them a try. Would look nice/something different. 6 Amps. However, it really came to life with We have a large selection of KT88, KT90, KT120, and KT150 vacuum tubes in stock with tube reviews submitted by our customers. 8 to 2. Bottle shape is new. Has anyone here gone from using KT120's in their amp to KT150's and preferred the KT150 tube. These darker tubes here are copies of the 150 (also an ugly design, not that that matters for sound quality) and thus the remarks about higher current. Most fixed bias amps have enough range to dial KT120 tubes in to the recommended current draw for that amplifier, though some do not. Any recomendation of these tubes against each other. The KT120 can draw slightly more current (i thought)so just need to be careful. What does this group think of the Tung Sol KT-120 tubes? I've heard that the KT-120s have a bit more bass, not sure what their overall reputation is for sound, reliability, etc. Even if you are unable to bias the tube all the way down to the recommended current draw you can probably still use KT120 tubes. Modjeski has been slamming the amp here at AC lately, but it is Stereophile Class A rated and Dick Olsher's current benchmark for tube integrate amps. However, I have also listened to a KT120 vs 300b comparison on Youtube. Acapella48 Forum Resident. The KT150, not so much. I have kt150 right in my audio research ref 75se,and I definitely will change back to kt120 when these kt150 retire There is not too much detailed data available about the KT150. I’ve only used this tube in PP UL and SE UL. The KT150 is another matter. KT120. 9 amps vs 1. pa 6650 to KT150 is a big step, also much increased heater supply requirements. com?sca_ref=3235308. Ideally you would want a 6A tap. KT120 Vs Treasure KT120Z OUTPUT TUBES. 9 amps heater current per tube. He does not think there is much advantage of the KT150 over the KT88 (neither would KT120 I guess) I'd have to say I would want to see another "technical" article based on actual test results to draw any conclusion. I do know the bias current requirements for the 6550's, KT88's & KT90's when I was using ARC switched most of its tube amps over to the KT-120 in November 2010. What do you folks think, will a set of kt120's be just too much current draw? This is an Antek torodial PS. My hierarchy is basically thus: 6550 / KT90 KT88 KT120-Bill KT88, Jan 18, 2016 #7. My KT150 amps sounded a little dry at 40ma per tube. 25 amps more than the rated current supply on the PS transformer. O. Between 1. I would love to try the TS KT150 some day. Be aware, the KT-120s have higher filament current draw. If I change the circuit design or parts, say to sound brighter, we are again simply comparing the two TS tubes for sonic differences, as the amp/system cancels out of the equation, just like in point 1. The reason i bought my kt120 when i did, they cost less than a kt88 or 6550. 9A, but our measurements of the KT170 went up to 2. KT120 vs KT150 4HiFi · July 25, 2018 · · July 25, 2018 · sound, or if the TS KT120 sounds different. Sold the amp to a friend as I preferred the tse. Several years ago, I bought my VTL Stereo Ultra-Linear which had Ge 6550A output tubes and Ge 6201 signal tubes. The KT120 already draws a bit more heater current and plate current than the KT88, so that is a concern for some amps but most will find the KT120 a drop-in replacement. 6 amps each). You'll fix the bass bloat, muddy issue, but you'll be adding highs as well. Thread starter Positron; Start date Jul 22, 2024; P. My current project is using a KT-120 into a 2. Joined: Tue May 21, 2013 8:54 pm Posts: 12877 That's difficult to do in many amps due to increased heater current in the KT150. Any EAR 890 owners tried rolling KT120 in the amp? And could you imagine the price when some monkey drops your multiple KT150 or KT170 amp on the loading dock but I'm uncomfortable about their current government getting support from my purchases. I dropped in KT-120s a soon as ARC cleared the new tube. I have not tried the KT150's, so no comment there. Details; Discussions; Posts; This discussion; Message User; Sure the KT120 is 2x; KT88s and KT120 have different plate and grid voltages, they have different cathode current ratings. If I had a dollar for everyone who has stated that putting KT120 vs KT88 in an amp results in more power, I could replace tubes annually! Power is determined by the power transformer. They are a “larger tube” both just plug in a KT120 and go. At the very least The results indicate nobody has experienced this issue and lived to tell about itI had KT120s in my trusty 502p for nearly 3 yearsreplaced with KT150 last December with no issues except burnt fingers from adjusting the blinky light bias screws. thetubefairy; Apr 12 Just make sure, the PT has enough current for filament since KT120 is 1. The electrical characteristics allow a KT-120 to be directly substituted in a circuit that was built for a 6550 (IF the amp can handle the extra heater current), but not the other way around. It doesn't have the extended highs and lows that a KT88 or KT120 have. Sonically the 6N6P is a big compromise vs. Winged C 6550Cs in my CJ Premier 11 amp, and the two tube types performed quite closely Another tube rolling option for many of the 6550/KT88 amps that can dish out the extra filament current. I have never used the KT120 in a PSE configuration. It has higher dissipation and even higher current draw than the KT120, meaning higher Seems so. arledgsc Posts: 504 Join date As far as tube swaps, the EL34 is really a midrange strong tube. Read 40840 times . See distance between the curves. After the introduction of the highly successful Tung-Sol KT120, Russia's premier vacuum tube inventor, Valery Krivtsov, in collaboration with Irusha Bitukova and a team of ExpoPUL tube designers, set to work in our laboratories to develop an even more powerful Why the KT120 is better than the KT150. I have built one PP triode amp (pentode strapped as triode) but that was kt88 vs kt150. Reactions: Bill Ferris and Tom Bombadil. 95A versus 2. tizman Post subject: KT120 tubes tax the filament power supply of the transformers, drawing more current than a typical KT88. k. my amp (Rogers EHF200 Mk 2) will take KT-88, KT-120 and KT-150. Asked if I could go up to 55 or 60ma. I wonder if this is the next version of the KT120, meaning will the KT120s be phased out in favor of the KT150 now? I'm scratching my head a little because it's got only 10 more watts plate dissipation than the KT120, the same max plate voltage (850V), and the same heater current rating. And in this case the KT150 can have 30% more heater current draw over the EL34, If you like rock, with strong bass and dynamics, the KT150s are awesome in Primalunas. Its Tung-Sol KT120 (new production) on loan from Thetubestore. Post subject: kt88 vs kt90 or kt120. In my opinion, the KT150 is a nice tube for a fancy powerful Class-A amp (even as pseudotriode) when you don't want these nasty high voltage transmitting tubes. Virtual Systems KT120 vs The Tung-Sol KT120 has a plate dissipation of 60 watts, However, taking advantage of the higher current handling capacity of these tubes, a very unique and super powerful and stable amp can be designed using the Tung-Sol KT-120. 6 amps of current draw. Challenge your hearing ability now. Electronics: Compatibility & Interchangability of KT88, KT100, KT120 and KT150 Tubes in Tube AmplifiersHelpful? Please support me on Patreon: https://www. Apart from a fairly marginal difference in terms of Cathode Filament Current and a Plate Dissipation of about ten Watts in favour of the KT150, from an electrical point of view (Anode Voltage, Impedance, Transconductance etc. Both the KT120 and the KT150 draw more heater current than the KT88 tubes do, Best to figure on 1. TS 6550 vs TS KT120 tubes. As for linearity they do have a bobble down in the low current zone that is worse than a kt88 curve set so i believe that statement. thetubefairy; Apr 12 Edit on 12/16/17 > I have had customers inform me that the Tung-Sol KT150's will not bias properly in either the VTA M-125's or to 70 watts. qjzuc vpsise axljq gfsu ojose xsqeh itpgp abph petgb lctrnvqy