• Re: Bad problem with 2nd Paramour.... - Mo'o 08:52:16 01/07/02 (3)
  In Reply to: Bad problem with 2nd Paramour.... posted by Steve Reese on January 06, 2002 at 09:23:26:

  Steve,
  Check your ICs. It happened to me too. I found that it was due to poorly fitting RCA jacks. I threw away those old ICs and found a better fitting pair. No problem since then.

  Gregg
  
  

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  • Re: Bad problem with 2nd Paramour.... - Steve Reese 09:38:31 01/07/02 (2)
    In Reply to: Re: Bad problem with 2nd Paramour.... posted by Mo'o on January 07, 2002 at 08:52:16:

    Thanks Gregg, I will. Hey, do you have the right URL for Voltsecond filament snubber for the Paramours? I can't seem to find it on his website.
    
    

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    • Re: Filament snubber - Mo'o 10:42:11 01/07/02 (1)
      In Reply to: Re: Bad problem with 2nd Paramour.... posted by Steve Reese on January 07, 2002 at 09:38:31:

      Sorry Steve I'm looking for it too. I don't think it is on Voltsecond's site. Well all we can do is ask!

      Gregg
      
      

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      • See comments above. - VoltSecond 20:01:53 01/07/02 (0)
        In Reply to: Re: Filament snubber posted by Mo'o on January 07, 2002 at 10:42:11:

        I don't have the C4S version of the snubber drawn on the web site right now. I'm lucky to find time to sleep lately.
        
        

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• one of mine does that ever so occasionally... - mrh (Mark Hardy) 18:53:06 01/06/02 (1)
  In Reply to: Bad problem with 2nd Paramour.... posted by Steve Reese on January 06, 2002 at 09:23:26:

  ... mine too are still non-C4S'd.

  I have some rather flimsy I/C's made with magnet wire. I suspect the screech -- which was WICKED nasty on the Cornwalls :-) -- may occur when the amp in question's input is open-circuited or shorted... Based on experiences I had when we origianlly built the amps, I suspect it is the latter. IIRC my amps never liked having the input shorted (e.g., for hum/noise measurements) when we were testing them.
  The amp that has screeched also has a slightly audible buzz (not hum, if you know what I mean). Could well be poor lead dress or cold-solder joints... the problem is, the dang things sound so good that I don't want to take them down, even to install the C4S's... I'm afraid I'll muck something up and lose ground on a very good thing!

  
  all the best,
  mrh
  
  

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  • Re: one of mine does that ever so occasionally... - Steve Reese 05:42:57 01/07/02 (0)
    In Reply to: one of mine does that ever so occasionally... posted by mrh (Mark Hardy) on January 06, 2002 at 18:53:06:

    I've tried swapping tubes but not the IC's. Tonight I'm going to try hooking up my ST70 just to make sure that it isn't the Foreplay causing the squeech. Thanks for the help Mark.
    
    

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• Re: Bad problem with 2nd Paramour.... - VoltSecond 11:05:20 01/06/02 (1)
  In Reply to: Bad problem with 2nd Paramour.... posted by Steve Reese on January 06, 2002 at 09:23:26:

  Check out the ohms listed on my Paramour page.

  Because the screech occured after you removed power, I doubt it is the transformer. Try removing power again, this time pull the plug from the wall socket to be sure.

  It sounds like you have an oscillation occuring. Check your C4S wiring and solder joints. A B9 to ground filament snubber may also help.
  
  

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  • Re: Bad problem with 2nd Paramour.... - Steve Reese 12:50:58 01/06/02 (0)
    In Reply to: Re: Bad problem with 2nd Paramour.... posted by VoltSecond on January 06, 2002 at 11:05:20:

    Both amps are non-C4S's so far, but I'll reheat the joints and check out your filament snubber too...
    
    

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