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Supro DualTone in the 18Watt format

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Bas Hermus:
BTW it won't damage anything in the amp when you connect these pins, it just doesn't do anything.

Bas Hermus:
BTW I updated the layout slightly.

I connected consistently to pin 1 of the power tubes (not 1 and 8 mixed).
That way you can also run 6CZ5 tubes instead of 6973 tubes.

NOS 6973's are outrageously expensive. NOS 6CZ5's not so much.

bluesfreak:
Why running NOS when there is an actual 6973 doing a decent good job available?
https://www.tube-town.net/ttstore/eh-6973.html

Bas Hermus:

--- Zitat von: bluesfreak am 23.11.2020 10:41 ---Why running NOS when there is an actual 6973 doing a decent good job available?
https://www.tube-town.net/ttstore/eh-6973.html

--- Ende Zitat ---
I know. I have a couple of them already.
But with that small consideration while building you can also try the 6CZ5 if you want, without any modification at all.

Good news.
The parts arrived, so I can start building  :bier:

Bas Hermus:
...and I found another mistake (when building the amp).

The 270K resistor was connected to the wrong potentionmeter lug for volume 2.
Fixed in the new pdf.

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