Author Topic: Warning about VFE switching PCB (Use the correct RELAY.)  (Read 2413 times)

nimbleswitch

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Warning about VFE switching PCB (Use the correct RELAY.)
« on: August 29, 2021, 11:59:50 AM »

tfl;dr:
Be careful when subbing out similar relays. Don't use a "2 coil" relay.
Nothing bad will happen, it simply won't work.

Simple version: don't use the series with "L2" in its name.
I tried Panasonic TQ2-L2-5V, when the correct relay was out of stock,
and it didn't switch. (Actually, it would switch between effect and silence but never dry bypass.)

I swapped the relay with the specified TQ2-L-5V
and it works great! One "L," not two baby.

And that's the only thing I changed so I'm pretty sure that was the culprit.

Captain Obvious, out!

« Last Edit: August 29, 2021, 12:13:45 PM by nimbleswitch »
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alamondm

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Re: Warning about VFE switching PCB (Use the correct RELAY.)
« Reply #1 on: November 10, 2022, 11:54:05 AM »
I just did the same thing and couldn't figure out why I couldnt get a clean signal. Glad I found your post. Just ordered correct relays.   

nimbleswitch

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Re: Warning about VFE switching PCB (Use the correct RELAY.)
« Reply #2 on: November 10, 2022, 06:23:40 PM »
Glad it could be useful!

I should mention, on this particular pedal, the LED comes ON when the pedal is OFF and OFF when the pedal is OFF.
Probably not related to the relay issue, but I figured I should mention it in case you experience something similar.

(In my case, I think it's because I used a PEDALPCB main board with a VFE relay bypass, and I probably just wired something incorrectly.)
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gordo

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Re: Warning about VFE switching PCB (Use the correct RELAY.)
« Reply #3 on: November 11, 2022, 06:45:49 AM »
The ONLY saving grace with these relays is that they're relatively easy to desolder and still work.

Don't ask me how I know...
Gordy Power
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