Vintage Synth Repair

Tim thats great info mate. Just need to wire it up and find out the resistance of it. Is there any easy ways to change the resistance of this ie quick component swap or is it more complicated?

Aus
> 
> From: timothy kosiorek <tkosiorek@...>
> Date: 2008/02/25 Mon PM 10:19:12 GMT
> To: <vintagesynthrepair@yahoogroups.com>
> Subject: RE: [vintagesynthrepair] How does the Volume pedal work
> 
> 
> 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.
> 
> 

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