FP 2 one channel out

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Offline Paul Birkeland

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Reply #15 on: April 15, 2015, 06:59:20 AM
I'd reheat the joint between 4 and 5 to be sure.  A flaky joint there will produce the issue you're describing.


Paul "PB" Birkeland

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Offline Grainger49

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Reply #16 on: April 15, 2015, 09:07:55 AM
He is right.  That is quicker fix than checking for the voltages.  If indeed that is the problem.
« Last Edit: November 16, 2015, 11:51:05 PM by Grainger49 »



1108

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Reply #17 on: April 16, 2015, 01:24:38 AM
Thanks guys. I'll give that a try a little later today.



1108

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Reply #18 on: April 20, 2015, 04:02:28 AM
Finally had the time to check the connection. Good news. The tube glows and I get music out of that channel. Grainger and PB, thanks for you help.



Offline Grainger49

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Reply #19 on: April 20, 2015, 04:11:13 AM
Awesome!  A local tube buddy loaned me a different line stage yesterday.  I doubt it will outshine the FP 2.



1108

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Reply #20 on: April 20, 2015, 04:42:18 AM
I'd be curious to hear your impression after you've checked it out.

A few years ago I picked up a Dynaco PAS after hearing all the hype. I did all the mods, recap,bypassed controls, rebuilt the power supply, etc, etc. It sounded good, but nearly as good as the FP.

The FP was my first build. And well, it looks like a first build. I've thought about rebuilding it. If I could find my notes about the snubbers and adding a choke I think I would. I'm still not interested in replacing it.



Offline Grainger49

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Reply #21 on: April 20, 2015, 05:23:40 AM
1108, can you work from a schematic?  I can send you a schematic for snubbers and the PS choke.

I have done a few more tweaks as well.

The FP III rolled many of the online tweaks into it.



1108

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Reply #22 on: April 20, 2015, 05:40:47 AM
Yes I can work from a schematic. Thanks for the offer. I'd be interested what other tweaks you may have done.



Offline Grainger49

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Reply #23 on: April 20, 2015, 06:01:36 AM
You will get a PM.



1108

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Reply #24 on: April 20, 2015, 11:17:54 AM
Looking forward to it. Thanks