Wiring the CE caps

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Wiring the CE caps

Postby mugsy » Thu Jul 10, 2008 4:06 pm

Hi folks!

I knwo this subject seems to have been done to death, but there's so much info. out there I'm not sure how best to wire my Dynakits multi-section cap.

According to their instructions, it should be:

1) 40 --> choke --> 80 --> 6K8 --> 20 --> 22k --> 30: with 20uF tag going to eyelit 20 on the circuit board, the 30uF going to eyelit 19.

However, if one follows the arrangement of the original Dynakit circuit - albeit with the updated cap values - I get the following:

2) 40 --> choke --> 80 --> 6K8 --> 30 --> 22k --> 20: with 30uF tag going to eyelet 20, and the 20uF going to eyelit 19.

Which is the best way to wire it up? I should add at this point I am using Triode Electronics P-521-S 120/240V transformer. Mains voltage here in the south east of England usually hovers around 247V.

1 is the 'neater' option and everything is layed out looking like the original. Option 2 involves slightly different wiring, but - I think - is the preferable option here.

Any help gratefully received folks :)

Cheers,

- John
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Postby mesherm » Thu Jul 10, 2008 11:29 pm

My personal choice would be #2. That's how I have wired up my ST-70s in the past, preferring the extra capacitance going to the phase splitter.
Mike's N-1 Rule: When looking for N number of components to finish a job, you have a 95% chance of only finding N-1 of them.
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Postby mugsy » Fri Jul 11, 2008 6:35 am

Thanks Mesherm - I'll go for that option.

Only a day or two more and hopefully I'll have a working Dynaco ST70 clone - fingers crossed and all that! :o
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