Pitch Witch Question

[Jovi Bon Kenobi]

Does anyone know if the Tayda Photocell LDR is okay to use for this build? The Pitch Witch build doc states it needs a 1M LDR. Thanks!

 

[K Pedals]

Does anyone know if the Tayda Photocell LDR is okay to use for this build? The Pitch Witch build doc states it needs a 1M LDR. Thanks!

I’ve got a couple different kinds from Tayda so idk... but I think they usually send out 500k...

 

[Nostradoomus]

GSL5528 will do the trick

 

[Jovi Bon Kenobi]

Much appreciated. Thanks! I found some on amazon same day delivery

 

[Nostradoomus]

Pedalpcb sells them too

 

[the_grumpy_gnome]

The hardest part of my Pitch Witch build was finding that vactrol or LED/LDR combo. I learned a lot.

 

[Kelmark1]

What did you end up using for the vactrol or led/ldr combo, what was the magic combination?

I’m building one now

The hardest part of my Pitch Witch build was finding that vactrol or LED/LDR combo. I learned a lot.

 

[Jovi Bon Kenobi]

No prerolled vactrol. Just a diffused 5mm yellow for LED 1 and a GSL5528 LDR. It worked perfectly. cool pedal!

 

[Aria51]

I have a yellow led but not diffused. I wonder what difference it'll make.

 

[pricklyrobot]

I was gonna ask about the same Tayda LDR linked to above for the Pitch Witch.
The datasheet for it is here: https://vetco.net/datasheets/VUPN6550/WAITRONY_KE10720.pdf

Light Resistance is 10-20k/Dark Resistance is .5M, as opposed to the 8-20k/1M of the GL5528

Has anyone figured out what the ohm-ic sweet spot is, where most of the modulation happens?

 

[chongmagic]

I used a GSL5528 and I love this pedal.