jose

Thanks but my amps are very simple... besides this is a temporary wiring. It's all pretty chaotic. For the moment, I prefer to start with the values that Congo5 selected. Anyway, with these heatsinks, my amplifier stays moderately hot, so I rule out changing anything if it's not necessary.

I have not changed any value. I guess you mean R33 / 35 according to Dr. Gilmore's scheme ? Yes, 2K.

My CFA is already singing. Thanks to Kevin, Congo5 and Michael I´m using a SE source without problems (bridge "cold" channel to ground). My unicial assembly is a bit precarious but only because I wanted to check that everything works correctly. My "Mini BH PSU" to -407Vdc and + 404Vdc. Offset at the start with 14.5/9.22Vdc channel L and 13.76/11.88Vdc channel R. After one hour it is very similar on all channels. Balance 4Vdc and 2Vdc. I hope this is not worrisome. I am using "adequate" heatsinks ?. Temperature transistors after one hour of use is barely 40º. I guess that's why the offset remains so stable.

It reminds me of some of Fripp and Eno's songs.

I think so too. ♥️

Guys, yesterday I used my Shars Tap Holder with the CFA heatsink... incredible, in just 25 minutes I had finished screwing all the holes. All have been perfect !!!! Normally for this work I would need hours and surely some thread would be skewed. Great purchase and great discovery. Thank you!!!!!

I have my doubts about that ... However, the interesting thing (for me) is to try it.

I have to look at this but maybe with + rail of the GRVH (Split pcb´s) maybe I can get + 220Vdc

I´m not sure but I think that it´s not possible. Used a specific PSU is a better idea.

Maybe a GB?

Wow… descansa en Paz Luke

Yes, it is what I had understood. Interesting. It looks like it's the size of a SquareWave. Pcb´s should not be very expensive.

Maybe... I think it's a different species. My Square:

I did not remember this amplifier ... I don´t think I have it in my collection.

Happy Birthday !!!!!

The Squarewave does not sound bad but IMHO dynalo is superior: More balanced, more musical ...

Well, that's not a cons. Finding the components is complicated but still possible. You can get 170/74 of Linear Sis. for example

Happy Birthday!!!

I'm glad to see another Squarewave alive.

While I'm waiting for a custom toroid for my CFAE, I work on my 6SA7g amp. This thing really sounds good but I have a ground loop in someplace and I'm not able to find it.

Descansa en paz Mark

In a first attempt I will use my Universal PSU (GRHV +/-450v) with resistors to reduce the voltage (as in the Megatron). I'm not sure it's the final configuration but ...

Yes but in low levels I don´t think it's worrying. I have measured some RK27 (original of course) and in the levels to which I usually listen to music there is no difference between channels (a few milivolts max). Other way is to use two stereo pot. (like some Stax amps) in case we worry too much about the balance.