A1UC Posted June 21, 2021 Share Posted June 21, 2021 sell it... What u think I sell everything [emoji23][emoji23][emoji23] I think Joessportster has me beat big time Sent from my iPhone using Tapatalk 1 1 Quote Link to comment Share on other sites More sharing options...
bluesboy Posted June 25, 2021 Share Posted June 25, 2021 Transcendent Sound Mini Beast amp Transcendent Sound Slider preamp JE Labs 2A3 SET amp 5 1 Quote Link to comment Share on other sites More sharing options...
Curious_George Posted July 19, 2021 Share Posted July 19, 2021 . 13 Quote Link to comment Share on other sites More sharing options...
wetowne Posted July 19, 2021 Share Posted July 19, 2021 That is a thing of beauty. Be proud. Quote Link to comment Share on other sites More sharing options...
tube fanatic Posted July 19, 2021 Share Posted July 19, 2021 Beautiful work George! A forum member in Tennessee is looking for someone to build him an amp. PM me if you are interested and I will get you in touch. Maynard Quote Link to comment Share on other sites More sharing options...
Davecv41 Posted July 20, 2021 Share Posted July 20, 2021 Very nice work, George. Does it sound as good as it looks? Is the schematic available? Quote Link to comment Share on other sites More sharing options...
Curious_George Posted July 20, 2021 Share Posted July 20, 2021 . 1 1 Quote Link to comment Share on other sites More sharing options...
Curious_George Posted July 21, 2021 Share Posted July 21, 2021 . 7 Quote Link to comment Share on other sites More sharing options...
Curious_George Posted July 21, 2021 Share Posted July 21, 2021 . 2 Quote Link to comment Share on other sites More sharing options...
Emile Posted July 21, 2021 Share Posted July 21, 2021 No; not mine, but this thread has me looking at tube amps (again) Etheraudio's "Abbsolute Intuition." Only about $400K 4 Quote Link to comment Share on other sites More sharing options...
capo72 Posted July 22, 2021 Share Posted July 22, 2021 18 hours ago, Curious_George said: Here is a "Williamson" Ultra-Linear amp I built about 25 years ago, but recently transferred the circuitry to new chassis'. The output transformers are Edcor 7.6k to 6 ohm. Power transformers are US military surplus. This particular design is super-stable, no motor-boating or other oscillation issues that some people have reported long ago. I'm also using 1625's since they are less expensive than 807's or KT66's. Originally, these were wired for 807's, but I bought a good stash of 1625's that should last me the rest of my life. Beautiful amps! I would love to see the "undercarriage" pics if you have any. Quote Link to comment Share on other sites More sharing options...
Curious_George Posted July 22, 2021 Share Posted July 22, 2021 . 8 1 Quote Link to comment Share on other sites More sharing options...
seti Posted July 22, 2021 Share Posted July 22, 2021 5 hours ago, Curious_George said: I did a 1625 as well since I had a box of 1625s. Good tube but took me forever to dialin. Quote Link to comment Share on other sites More sharing options...
Curious_George Posted July 22, 2021 Share Posted July 22, 2021 (edited) If you built the original version from 1949 or early 50's I do believe the stories of potential instability on some builds. In addition, depending on the output transformers used, the cap & resistor across the first stage anode resistor and the feedback cap & resistor, there was not much room for error. Layout and parts placement should be well thought out. The Talbot Wright article helps a bit too. IMO, a robust low impedance power supply will help eliminate a lot of the issues. I really like the Edcor output transformers, especially the 25 watt, 7.6k multi-tap version. I believe this is the closet thing you will get to an original Stancor A-8072. The Edcor is a bit smaller, but it also is using M6, which IMO is a better core material. Edited July 22, 2021 by Curious_George Quote Link to comment Share on other sites More sharing options...
Steve. Posted July 23, 2021 Share Posted July 23, 2021 No pic yet..... but I will definitely post my Toolshed 300b once I get it. Quote Link to comment Share on other sites More sharing options...
Curious_George Posted July 31, 2021 Share Posted July 31, 2021 . 3 Quote Link to comment Share on other sites More sharing options...
Curious_George Posted July 31, 2021 Share Posted July 31, 2021 . 3 Quote Link to comment Share on other sites More sharing options...
koba Posted July 31, 2021 Share Posted July 31, 2021 Audiolot monoblocks. Based on 6C33C tubes. Made in Ukraine 6 Quote Link to comment Share on other sites More sharing options...
seti Posted August 1, 2021 Share Posted August 1, 2021 9 hours ago, Curious_George said: Here is a 211 based amp I built about 20 years ago, but recently modified it with a interstage transformer. Class A SE, 25 Watts, no feedback (but have been thinking about adding some feedback lately just to mess around with it). Would love to see a schematic for this one.... Coool!!!! Quote Link to comment Share on other sites More sharing options...
Curious_George Posted August 1, 2021 Share Posted August 1, 2021 . 2 Quote Link to comment Share on other sites More sharing options...
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