My Corsair schematic shows 500k, but not whether it is log or linear.
The parts list only has active components.
73,
Bob WB2VUF
On 2/6/2011 11:22 AM, Dr. Gerald N. Johnson wrote:
> There's a slight chance the value is stamped on the pot metal case.
>
> If its 250k and you put in 500K, you extend the LF range of the notch by
> a factor of 2 and make tuning more critical. If its 500K and you put in
> 250K you raise the lower limit frequency of the notch by a factor of 2
> but make tuning a little easier.
>
> In circuit, check the resistance with the pot all the way to the LF side.
>
> They last page in my printed manual says there's a parts list, but I've
> not yet found anyone with a Corsair II manual having that parts list.
>
> 73, Jerry, K0CQ
>
> On 2/6/2011 3:37 AM, Steve Hunt wrote:
>> I need to replace a fault "Notch" potentiometer on my CorsairII. It's
>> dual-gang, and mounts to the IF/AF PCB as well as to the front panel. I
>> can't see anywhere on the schematic that tells me its Ohmic value, or
>> whether it is Log or Linear.
>>
>> I wonder if anyone happens to know the details. I'd prefer to obtain a
>> replacement before pulling the radio apart, otherwise I could just
>> measure the "good side".
>>
>> Thanks,
>> Steve G3TXQ
>>
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