Vintage Synth Repair

Looks just like a Morley. We used to use one back in the 80's for 
guitar. It wouldn't load down the input of an Ampeg SJT so the axxe, a 
Gibson SG, always had great bite and sustain as the volume faded out 
from a solo. The bulb would blow or the optical sensor would get flaky. 
Otherwise it worked great for leads and then back to rhythm.

--- In vintagesynthrepair@yahoogroups.com, timothy kosiorek 
<tkosiorek@...> wrote:
>
> 
> This looks like an optical volume pedal where a usually 8-12 volt 
lamp shines through a slot that has a varying width that changes as the 
volume pedal is moved,this varies the amount of light that falls on a 
LDR or "light dependant resistor" changing the resistance of the LDR 
and varying the volume ,this pedal looks like it might have 2 channels 
since the lamp is in the middle in the white plastic lamp socket and 
the LDR boards are on the sides of the unit,these are the quietest type 
of volume controls since there is no scratching noise like with a 
potentiometer,they are used in a number of organs.
> Regards,
> Tim K.
>