[Collins] help still needed

[Dr. Gerald N. Johnson]

With power off, use the ohmmeter.

Red hot is not beneficial to tube life.

Shorts destroy parts feeding the short, there's no tolerance for that 
much overload in a tube circuit. It sometimes takes circuit analysis to 
decide what the resistance reading should be.

It might be time to get assistance on the bench of those on this forum 
that offer repair services and have experience with the 32S-1.

There are other possibilities causing low exciter gain, like bad trimmer 
capacitors but those are band specific.

73, Jerry, K0CQ, Technical Adviser to the Collins Radio Association

On 1/31/2012 11:20 AM, drleborgne at aol.com wrote:
>
> Hi Jerry and all other collins fans. I changed al cap in de ALC proximity, and removed temporarily V13, and nothing.
>
> Re reading Jerrys mail he mentinons the posibility of a short at netralization circuit and high PA current . As it happened, the Pa tube went
>
> RED HOT and a low ohm resistor burned. wich I replaced. The resistor goes from a feed thru device to a choke.  This all
>
> sound like Jerrys first coment. How do I check for a short  here? Excuse my basic knowledge.   KJRY Martin
>