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Everything posted by seti
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I had the polystyrene and green metal can glass end seals tested and they were great. The date codes are from the 80's.
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I've been using the russian polystyrene gold caps and the maybe oil green caps. The quality is amazing metal cans glass seals. Here is a guide to the numbers: K15-4 Ceramic HV "doorknobs" K15-5 Ceramic HV Disc K31 Silver Mica "kidney bean" style cap K40P-2B Paper in Oil, 5% tol. K40U-9V Paper In Oil , Silver body, 10% tol. K41-1A PIO, High Voltage "Pulse" caps K42U-2 PIO, green painted body (K75 are better) K50 Aluminum Electrrolytic K71-7V Polystyrol "High Tolerance" 1% or 2% tol. K71-4 Polystyrene K72P-6 Teflon Dielectric 5% tol. (see example below) K73-14 PETP High Voltage K73-15 PETP / Dry Mylar K73-16 PETP / Dry mylar K73P-4 "tub " style AC capacitors (may be paper or mylar, still TBD) K74 HV caps K75 Polyprop In Oil K75-10 PIO, Green body (these are the prime quality PIO) K75-15 PIO, High Voltage "tub" K75-17 PIO High Voltage "tub" K75-24 PIO Green body tubular (see example below) K75-28 PIO High Voltage "tub" BMT-2 Paper In Oil *** High Voltage Teflon Dielectric, Ceramic body (almost beer can size) FT-1 Teflon Military Grade glass sealed, aluminum body (smallest) FT-2 Teflon Military Grade glass sealed, aluminum body FT-3 Teflon Military Grade glass sealed, aluminum body (largest) KBG PIO (no, this isn't the KGB, they're a different entity altogether) Capacitors KBG-MN (КБГ-МН) are: - K (К) - aluminum foil; - B (Б) - paper insulation; - G (Г) - airtight - M (М) - metal casing - N (Н) - a normal rectangular Corps filled with oil. KBI HV "doorknob" RF / Transmitting cap KSO Silver-Mica "precision" caps MBG Paper-Aluminum "tub" AC caps
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El Paso Tube Amp has a great channel. https://www.youtube.com/user/essoterric/videos
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Recommended SET 300B tube amp for Klipschorn speakers
seti replied to pnort's topic in Talkin' Tubes
I am in the anti feedback camp but only because I don't like dealing with it in DIY. Nothing wrong with it unless you get culty. -
Poll: Which 2A3 have you heard and like the best?
seti replied to pauln's topic in 2-Channel Home Audio
I have so many 2a3 tubes I'm thinking of doing a push pull 2a3 amplifier with 4 per channel. Don't need the power but could be fun.. -
Recommended SET 300B tube amp for Klipschorn speakers
seti replied to pnort's topic in Talkin' Tubes
You don't need to spend a fortune. I like Min's Tube Audio Lab. He has been building 91A instpired amps for years. Great bang for the buck. I'd trust him over the newly launced WE. http://tubeaudiolab.com/ -
Do you need a horn subwoofer for your Klipschorn/ Lascala home theater?
seti replied to Tom05's topic in Subwoofers
I hated every sub I ever tried with my fully horn loaded systems in my room. To me it just made things worse. That was until I heard and tried the HLS. It is a game changer for horn guys. -
Poll: Which 2A3 have you heard and like the best?
seti replied to pauln's topic in 2-Channel Home Audio
They may have stayed in the family but I am not sure. It was strange getting his tubes as we had long conversations about tubes. Then it turned out he bought most of what we talked about and I had no idea. -
Poll: Which 2A3 have you heard and like the best?
seti replied to pauln's topic in 2-Channel Home Audio
I inherited DaddyDee's tube collection and I agree with his opinions. However there are so many great 2a3 tubes on the market it is hard to go wrong. The one I have not tried are 2a3 mesh by EML. I find there tubes better than anything I have ever heard or seen. What I didn't realized until recently is the sovteks and gold lions are single plate 2a3s. -
I agree keep it in the same family. The maple tree is trmendous bang for the buck. I doubt you could do better new for the money.
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No it wasn't too long. It is amazing. People like to blame Yoko but even according to Ringo George and Paul The Beatles were having issues before she showed up. Yoko was just a strong women John needed. The most touching part of their relationship was when John got shot and George and Paul showed up to help Yoko. Those are true friends and family. I'm of the opinion The Beatles were underated. I have studied The Beatle throughout my life. They are the epitomy of a band as seperatley they were good but together they were unstopable. I'd like to see a fwe more of these studying each phase of their development. The most interesting would be their time in Germany where they became The Beatles.
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2 watts high power. I've got a couple under 2wpc 8-) Love the bottleheads!
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Recommendations for a tube amp tech in Arkansas or close by?
seti replied to avguytx's topic in Talkin' Tubes
I mentioned it to Chris he said take it on to Durham's. -
Recommendations for a tube amp tech in Arkansas or close by?
seti replied to avguytx's topic in Talkin' Tubes
That needs more than a tech lol. Check Durham electronics. My friend Chris works for him on a few jobs and he is as good as they get. -
I use Naval Jelly for rust but don't let it touch ya.
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Congrats! Really cool speakers. This is just a preference but I love little EL84 PP amplifiers with speakers like this.. \
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Guitar amp tubes or 'hifi' tubes? (Mullard or Sovtek)
seti replied to MeloManiac's topic in Talkin' Tubes
Mullard tubes are NOT distorted in the highs. It is all in how tubes are used driven. Certainly guitar amps are not built to same end as hifi.