MOD Verb Deluxe Reverb kit mechanical switch click

[jalexquijano]

Recently built a MOD Verb Deluxe Reverb Kit which has been working fine. However im trying to get rid of the click noise whenever i step on the pedal. I tried adding a 1M resistor to thr output jack but had no luck. Any other solution to this?

[jalexquijano]

Picture attached

[g1]

please post schematic or link to kit documentation

[jalexquijano]

verb_deluxe_schematic.pdf the_verb_deluxe_k-915_instructions_1 (1).pdf

[jalexquijano]

[nickb]

Try this. Rewire the switch with a 10uF electrolytic cap cap in series with the the ground side of the switch, negative to ground, positive to switch. Add a 1 meg resistor across the switch.

The module draws a hefty 60mA or so and the 78L05 regulator needs at least 7 volts to work meaning an good quality 9v battery will reach that limit after just six hour's use. Best the use the DC power input.

[jalexquijano]

Can you point out in the picture exactly how to wire the electrolytic cap and the resistor? Maybe drawing a line? From point x to y for example.

[nickb]

Let's do a little test first to identify the problem area. Put it in reverb mode and then temporarily short out pins 2 and 3 of the switch. Repeat for pins 5 and 6. Note the difference in pop in each case and report back.

[jalexquijano]

Ok here is the switch that came with the kit. By shorting you mean making bridges with resistor copper leftovers between the terminals of the switch?

[nickb]

Yes Anything metallic will do. And here is an image showing the switch pin numbers:

[jalexquijano]

What about testing with jumper cables before soldering?

[jalexquijano]

Yes Anything metallic will do. And here is an image showing the switch pin numbers:

Ok. I placed jumper 2 to 3 and if you switch there is barely some mechanical noise. 5 to 6 has no effect and still amplifies the mechanical noise when you step on the pedal and disable it. What next?

[nickb]

No! Do not operate the switch. It must be left in reverb mode and powered on. Then do the shorting test so where can see where the click noise comes from.

[jalexquijano]

Shorting 2 and 3 disables the effect meaning the reverb cannot be heard. Removing the jumper cable brings back the effect.

[nickb]

What we need to know is how loud a pop is made as stated in post #8, not what effect is has on the reverb.

That said, shorting 5 & 6 will silence the reverb effect for sure. If it doesn't then you are doing it wrong or there is a problem with the wiring or circuit. So fix that issue then repeat the test.