Tekton Double Impacts

Hi Kenny,
Overbuilt power supply and a good quality output transformer, Kenny I knew you’d get it all sorted out 😊. I believe that you’ll have a very high quality 2A3 SET amplifier for an exceptionally reasonable price. What a wonderful match with your Double Impacts.

Kenny you’re getting excellent sound with the Cyber 2A3 SET and I suspect that the Aric custom built amplifier will be a noticeable  step upward. What will be your choice of coupling capacitors and what type of internal wire? You have the ears and experience to get this completely right.
Charles

Charles,

Yes I think this is going to be a nice sounding little amp and will be versatile with tube changes and pwr outputs.The JJ 2a3-40 tube is very similar in physical size of a 300b and shares some of the same internal structure with different electrical requirements.

We are using the Audyn Cap Plus as the coupling caps,these are very reasonable in price and Aric likes them for their natural and smooth sound.I will try them for awhile and then make that decision.

I've used The Jupiter copper foils before and those might be better.
He just uses standard copper hook up wiring internally and there may be some room for improvement there also.

As mentioned before Aric only builds his amps and preamps point to point with no circuit boards.

If I really like this amp,I may look into a build of Basically the same amps but in mono blocks that may utilize interstage transformers instead of coupling caps,not sure if that can be accomplished with the 2a3.

Kenny.

Hi Kenny,
Thanks for the detailed reply, you are definitely on the right track. My 300b Frankenstein has interstage transformers as does my Coincident Statement Line Stage (101D tubes which are DHT). I can see no reason why your 2A3 which is also DHT could not use an interstage transformer as well. Going this route and with mono block construction sounds like a fabulous idea. Bill (Grannyring) could suggest some excellent choices for capacitors and wire, he has tried "many" over the years. Your Double Impacts are going to sing to the heavens 😊
Charles

Great build Kenny. Tremendous pricing also. Those  magical Duelund silver foil bypass caps in the coupling positions would do wonders with the fine Audyn caps. You know that already. 

I think he uses electrolytic caps in the power supply? Anyway to use film? Yes they take up more room and may not be possible. I love the Clarity TC line, but even Solen Fast Caps will sound better than electrolytics. This is an important area for consideration. Film caps in the power supply do make a difference.  

Not sure if the design uses bridge rectification? Regardless, using the low noise, fast recovery types adds very little to cost.  

Resistors also impact the sound. I really like the SHINKOH - Tantalum sold at Parts Connextion. They are beautiful sounding. Many DIY guys love them also. Well thought off. 

Fun stuff! Enjoy.....

Kenny,
I appreciate the fact that you want to adhere to a specified budget for your custom made amplifier.  I do agree with Bill's recommendation of using film capacitors rather than electrolytic capacitors in the power supply if this doesn't disrupt the budget. This is amplifier can really be a first rate product with specific choices/decisions. 
Charles