From: cd6699@notformail.com   
      
   On Tue, 25 Nov 2025 11:43:50 -0500, legg  wrote:   
      
   >On Sun, 23 Nov 2025 22:58:42 +0000, Cursitor Doom   
   > wrote:   
   >   
   >>I've been trying to trace an issue with a Uher tape deck in respect of   
   >>extremely  low audio gain during recording. I was delighted when I   
   >>spotted a resistor in the AGC section with a tiny blow-hole half way   
   >>down its body. I was able to confirm this when I removed it for   
   >>examination under a stereoscope. There was even a bulge under the hole   
   >>where some pressure had clearly built-up immediately prior to the   
   >>blow.'Easy fix!' I thought; 5 minutes and it's done. However, I was   
   >>baffled when it tested spot-on its 1200 intended ohms! WTF?? Something   
   >>must have pulled excess current through that component and the obvious   
   >>culprit was the BJT it was the series resistor for. However, once   
   >>again, it tested fine! I just never have encountered an outcome like   
   >>that before. Anyone had similar?   
   >>   
   >>CD   
   >   
   >Mfring defect in the epoxy 'paint' finish.   
   >   
      
   Unless something upstream that caused an over-current went   
   open-circuit before the resistor could totally fail?   
      
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    * Origin: you cannot sedate... all the things you hate (1:229/2)