[HAM] Variacs and tone generator motors

[Scott Hawthorn]

At 02:22 PM 5/9/2007, Stainless Brown wrote:
>I've just about completed replacing the components robbed from a M-100 
>that I picked up for the nice price of "free, just get it out of my 
>garage"- The reverb amp and one of the speakers had been taken from it, 
>although it was working (just no verb)  I've  replaced the power supply 
>filter caps in the AO-44 amp I got on e-Bay (badly dented, didn't want to 
>chance it)  and in the past I have always used a Variac to slowly ramp up 
>the power to full line voltage when doing this (on other amps), however, 
>other circuits have not had a motor to think about.
>
>   Is this a concern? Should I disconnect the  power to the TG motor, and 
> if so, where's the best (easiset) spot to do this?

Here's a reply that's completely non-sarcastic. Easier to disconnect the 
amplifier from its supply and use your Variac on it directly. The 
synchronous motor could be damaged by excessively low voltage. Personally, 
I wouldn't even bother with this cap-forming procedure.

>   and... another question, the spring on the expression/volume pedal- 
> should it be strong enough to return the pedal to the "up" position?

No.