[Amps] How to Bypass TR circuitry in Alpha 86

[Jim]

What are you driving it with?


Thanks
73
Jim W7RY

On 2/11/2020 12:02 PM, Mark - N5OT wrote:
> Hello Power People,
>
> I have an Alpha 86 where something has failed resulting in a fault.  
> Since this failure mode began very shortly after the amp received the 
> newer and stouter PIN diodes, and the amp was not subjected to 
> excessive abuse, I believe the control circuitry itself may be wonky. 
> I would like to take my chances, bypass the internal TR circuitry and 
> also the control circuitry, and use an external TR switch I have on 
> the shelf (Ameritron QSK-5).
>
> Unfortunately 100% of the time at the first dit the control circuitry 
> bounces the amp out of transmit mode rendering it unusable.  I would 
> like it to stop doing that.  I fully understand the risks and am 
> willing to take them.
>
> Suggestions?
>
> 73 - Mark N5OT
>
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