Correct component value

[isaac_teller]

Hello. In the schematic of the preamp of the Soldano SLO100 there are 2 symbols of a LED(VR1 and VR2). Usually VR stands for a potentiometer. Does anyone know if the actual component is a LED or a potentiometer? If so, what value? Thank you.
https://el34world.com/charts/Schematics/files/Soldano/Soldano_slo100.pdf

[isaac_teller]

Found the answer.
https://robrobinette.com/images/Guitar/Soldano/Annotated_Soldano_SLO-100_Schematic_with_Signal_Path.png

[sluckey]

The answer is right on the schematic you posted in the original post.

[Latole]

VR = Variable Resistor.
These VR in this amp are a light activate resistor

[sluckey]

VR1 through VR4 are VTL5C1 opto-isolators and are used as on/off switches in this amp circuit. VR is a very poor reference designator for an opto-isolator.

[Latole]

What I see ;

[sluckey]

What I see ;

... does not apply in this case. The VTL5C1 contains a LED that is electrically isolated from a LDR.