[TenTec] CorsairII notch potentiometer

[Steve Hunt]

The potentiometer wasn't marked other than with a manufacturer's number. 
It measured 211k across the ends, and mid-way on the rotor the 
resistance from the slider to either side was 176k/35k, so I think it's 
safe to call it a "220k log".

73,
Steve G3TXQ

On 07/02/2011 14:34, NL7VL wrote:
> Hi Steve,
>
> So you're saying that the double-gang notch pot on the Corsair I is a
> 220K? That's about how it measured out with the ohm meter, but it does
> say 500K on the schematic. Jerry's right about things showing up on the
> case of the pots, but all I saw was what looked to be an OEM part
> number or something like it. Please let us know how it goes.
>
> There are a few DDS mods for the oldies out there - like N4YG's mod. I
> have a Corsair II PTO that I will be investigating this week. It's kind
> of a crap-shoot with those things: The Century 21 I have stays within
> 50hz after warm-up, but it was rebuilt no so long ago. Going with the
> DDS + display combo heads off future problems with the original display,
> too. Not a bad idea. I had thought about using a "Huff-and-Puff" or some
> kind of fast response phase lock loop on the PTO, but maybe that's not
> the way to go.
>