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Old 24th June 2012, 10:02 PM   #18241
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Default cd63

Back too it ,clocked the dac and servo on mk2 atempt all good so far.
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Old 24th June 2012, 10:14 PM   #18242
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what clock are you using Al?
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Old 24th June 2012, 10:16 PM   #18243
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Talking cap choice

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Originally Posted by UV101 View Post
Not tried those fr's so I've not idea how they sound. Specs look interesting. I'd be using tsup 6800uF smoothers on the audio rails and 22,000uF on the +/-10v rails (v important) also no panasonics after the regs. You've taken warm sounding audio focussed silmics out of the post reg position and replaced with these fr's which are an unknown. The whole thing about the KI is its toroid transformer and then cap choice over the std model.

Rule of thumb, in the absence of Mundorf and black gate, use large Panasonic tsup smoothers that you need to mount on short leads to fit before the regs (and on the -10v). Use rubycon 470uf post reg +/-12v and a zl after the 5v reg. use 470uF zlg for all analogue local decoupling and use solid polymer for digital decoupling.

Caps influence the psu rails and the psu rails are what you hear!!! Crap rails, crap sound!!

On a different subject, I noticed Brent has changed the order on his mod packages and replaces the transformer in the level 1 now. I've got a couple of 63se's std. I'm going to change just the transformers in 1 and compare
Nice one ian oscons in short supply ive used nichicon ls great value from rs @ the mo like the tsups too.
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Old 24th June 2012, 10:29 PM   #18244
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Quote:
Originally Posted by bikeral10 View Post
Nice one ian oscons in short supply ive used nichicon ls great value from rs @ the mo like the tsups too.
Nah!!! Lee's got loads!!!!
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Old 25th June 2012, 07:10 AM   #18245
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Default clock

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what clock are you using Al?
Only a cheapie ian,
£25 from taiwan does the job pretty stable too.
alan
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Old 26th June 2012, 09:49 PM   #18246
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C815 will 4700uf zlh 10v be okay saves me ordering again from rs.be nice guys im fragile after my last atempt.
alan
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Old 26th June 2012, 09:54 PM   #18247
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Hi Alan, that's pretty much exactly what I'd use there...in fact if I was ordering right now, I'd probably choose that exact cap!!!!

Rail is 5v so voltage ok, values good and I like ZLH's!!!!!!!!
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Old 26th June 2012, 11:18 PM   #18248
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Quote:
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Hi Alan, that's pretty much exactly what I'd use there...in fact if I was ordering right now, I'd probably choose that exact cap!!!!

Rail is 5v so voltage ok, values good and I like ZLH's!!!!!!!!
thx ian saved me a quick fly over to bham to rs.
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Old 26th June 2012, 11:25 PM   #18249
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my next question would it be worth my while to transplant a 63se tx to a 63 std save me a lot of swapping.
alan
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Last edited by bikeral10; 26th June 2012 at 11:33 PM. Reason: miss spelling
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Old 30th June 2012, 08:39 PM   #18250
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I just discovered this note in the SAA7345GP (decoder chip) datasheet:

1. All supply pins must be connected to the same external power supply.

Whoops...!
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