K&K Audio / Lundahl Transformers

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K&K Audio / Lundahl Transformers

CCS adjustment

65.189.34.82

Guys,

I connect up a couple of Casode CCS in a Parafeed 5687 using LL1674 coupling. I fire up the amp, adjust the plate voltage using the Pots on the CCS. Everything is cool. I discover that I have way more gain than I needed. I tweak the LL1674 connections. I fire the unit up and one channel is wacked out. I measure my bias on each channel and discover that one of the CCS is fixed and not adjustable anymore. I have gone over the connections a billizion times. Did I some how cook the CCS??

Stuben

Follow Ups:

RE: CCS adjustment - KevinC 05:52:34 05/20/09 (0)
If the voltage drop across the "fixed" CCS is very small or very large, you do have a damaged CCS. You can replace the MOSFETs pretty easily.

Kevin Carter
K&K Audio
www.kandkaudio.com

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