[Heathkit] Hw-32a oscillations

[Bill Cromwell]

Hi Dale,

I think Glen Zook gave you a good tip when he pointed at that cathode 
bypass cap in the audio driver. I'll add screen bypass caps, too. 
But..you said you pulled the driver and the final (is that the audio 
driver and the audio output?).  How did you know it was oscillating or 
not with those tubes pulled?

73,

Bill  KU8H

I don't have a 32A nor a manula so c-120 means nothing to me.

On 10/10/2014 09:42 PM, wt4t at reagan.com wrote:
>            the radio still howls and oscillates, have checked all the grounds. retightened everything, re soldered all the points that did not look right. Replaced c-120 ? 20 mfd
> cap, per the manual. added a coupla of extra ties between the board ground and the chassis. pulled the outputs and driver, nothing changes. I will go thru point by point following heath's chart. could anyone point me in the right direction ? could be a tube?? see and smell nothing burnt,
> 73
> dale wt4t
>
>