[sdiy] Seeking Marshall 1987 guitar amp potentiometers (vintage... 1975)

[synth]

Maybe you could just cut a notch in a newer pot if you don't have any  
luck with a old stock replacement.  Or just try a new one and see if  
you can hear any difference.  It seems unlikely that a difference  
would be heard since most pots are + - 20%.  Or you could add a  
resistor to the pot to make it a bit under 1M if that notch is simply  
making the pot 900K.



On Aug 20, 2011, at 7:09 PM, luther rochester wrote:

> On 8/20/11 6:01 PM, Jean-Pierre Desrochers wrote:
>>
>> Hi list,
>>
>> I just bought a vintage Marshall model #1987 guitar amp head
>> and found there is one of the inside 1meg log pots
>> that is damaged. (Vol I channel). This is a vintage 1975 amplifier  
>> and I can't find any source..
>> The pot was made by CTS and it has a 1/4" plastic shaft
>> with a lenght around 3/8".
>> The shaft travel is specific to this amp since
>> the pot's back has 2 notches which shorthen the overall shaft travel.
>> See the picture here:
>> http://www.arcenson.com/public/Marshall_1meg_pot.JPG
>>
>> This means I cannot use a standard CTS pot with one notch.
>> Is there anybody that would have some in hand ?
>> I'd need two of them.
>
>
>
> Have you looked here?
>
> http://tubesandmore.com/
> -- 
> ./luther
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy