Hi-end 845 with only two stage

[gaborbela]

Hello Thomas

I have more than 20 years DIY experience, also I work as a assistant in TV repair shop and with electrician mostly residential but sometimes in factory with 360V to.
I have some soldering skills that is not a problem.
I have more than half of the parts for these amp, I go slowly how I get some money..
If there is a working schematic I can build anything.
I do not own oscilloscope etc but probably I can get some help from my friend. Some DD Multimeter etc I have of course.

Greetings gabor

[Vinylsavor]

Hi Gabor,

ok that's good. Just wanted to make sure since there are dangerously high voltages involved in such a project

Best regards

Thomas

[gaborbela]

Thank you Thomas
I know,I thought about before I started to collect the parts!
Safety first.
I think these 2 stage will be better than the schematic I posted. Even do I'll purchased some 6SN7 & 6J5 tubes also octal sockets..
I see Andrea and many other (guru) DIY-ers go with two stage.
Someone told me avoid the instage transformer, use just tubes but I think the transformer still better than many coupling capacitors.
I attache some picture from the parts I already have..
12PC Epcos
3PC amplifier enclosure, two the same as on the picture, one larger for PS
4PC GM70, 2 socket
high voltage choke - about 3.5Kg, 12PC electrolytic etc.

Greetings gabor

[gaborbela]

Hello Andrea

How much it cost a pair Fiat OP transformer for GM70. I think 25-30W would be enough.
Please let me know
Thank you very much

Greetings gaborbela

Originally Posted by audiodesign

gaborbela,
look this dc solution

GM70 amplifier with Fiat transformers