[Collins] VOX Problem

[Bill Abate]

Dave,

Check the resistance of the relay coil.  It may have changed.  It sounds
like the 6U8 plate current is not going to zero in standby.  Holding
current is quite a bit lower than the draw-in current.  Another
possibility is that the coil has developed a short to ground somewhere
in the winding.  Try switching out the relay coil.

GL,

Bill, K3PGB

David Knepper wrote:
> 
> Can anyone refresh my memory on the cure for a stuck relay in the 32S-3.
> 
> Checked resistance and voltage readings with another known unit in the VOX
> circuit and they appear fine.
> The relay closes shut and opens when you remove the VOX relay tube, the 6U8.
> 
> I did check the 2 watt 68 K resistors.  What is strange is that the
> resistances/voltages with another 32S-3, that I know is fine, are the same.
> 
> I am missing something very obvious.
> 
> Thank you.
> 
> Dave, W3ST
> Secretary to the Collins Radio Association
> Publisher of the Collins Journal
> www.collinsra.com
> 
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