I though I had it, but now I'm a bit confused

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I though I had it, but now I'm a bit confused

Postby SVinzant » Mon Oct 18, 2010 5:21 pm

Hi Guys...

I started stuffing / soldering the fixed resistors for my ST-35 (Rev. D) board.
I am at the point where I need to decide about the choke wiring.
On page 16 of the Rev D manual, I see the wiring for a choke setup, but what is confusing is D1 and D2 are not installed but a single jumper is in place of D1.
My first question is, don't I need the diodes for rectification? I am guessing I do since I am not using a tube rectifier.
I think I understand that if I want to use the choke, I would not install R34 and R35 (choke would wire in the two "extra" positions between them). Additionally, I would not install R36 and R37 but would use jumpers (cut leads) in these two positions instead.
Am I on target here? or way off-base.
Thanks....
Scott

p.s. I may have a few more questions as I get a little further along.
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Postby TomMcNally » Mon Oct 18, 2010 6:40 pm

You're looking at the section for a tube rectifier.

Put the diodes in, put the choke where R34/R35 would go.

R36 and R37 can be in or jumped out, they just drop the filament
voltage a little.
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Postby SVinzant » Mon Oct 18, 2010 6:55 pm

TomMcNally wrote: R36 and R37 can be in or jumped out, they just drop the filament
voltage a little.


Tom,
Thanks for the reply!

In my kit, I have two resistors that are marked as .025 ohms (basically wire ;) ).
I am assuming that these are R36 and R37.
I will install them, the diodes and the choke.

Cheers...
Scott
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