Tremolo clicking on silverface twin

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Re: Tremolo clicking on silverface twin

Postby supershifter2 on Sun Oct 30, 2016 8:33 am

I was looking at the AA270 schematic and noticed there is a 5uf cap across the R100K on the vibrato circuit. Mine had a 22uf cap. I replaced it with a 4.7uf cap and the vibrato is way more clear and has more treble in it. now I need to get rid of the foot switch popping.
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Re: Tremolo clicking on silverface twin

Postby stratele52 on Sun Oct 30, 2016 10:04 am

supershifter2 wrote:I was looking at the AA270 schematic and noticed there is a 5uf cap across the R100K on the vibrato circuit. Mine had a 22uf cap. I replaced it with a 4.7uf cap and the vibrato is way more clear and has more treble in it. now I need to get rid of the foot switch popping.


Do you have the hum ?
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Re: Tremolo clicking on silverface twin

Postby supershifter2 on Sun Oct 30, 2016 6:23 pm

stratele52 wrote:
supershifter2 wrote:I was looking at the AA270 schematic and noticed there is a 5uf cap across the R100K on the vibrato circuit. Mine had a 22uf cap. I replaced it with a 4.7uf cap and the vibrato is way more clear and has more treble in it. now I need to get rid of the foot switch popping.


Do you have the hum ?
The hum went away when I put the .01uf cap across the 10m resistor. Everything works great except the footswitch. I get a pop each time I press the foot switch.
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Re: Tremolo clicking on silverface twin

Postby stratele52 on Sun Oct 30, 2016 6:27 pm

Try a 0.0047 MFD on the switch.

This work very well to silent stanby switch
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Re: Tremolo clicking on silverface twin

Postby supershifter2 on Sun Oct 30, 2016 7:18 pm

stratele52 wrote:Try a 0.0047 MFD on the switch.

This work very well to silent stanby switch

It's not the stanby switch making noise, it's the reverb/vibrato foot switch making the pop noise.
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Re: Tremolo clicking on silverface twin

Postby stratele52 on Sun Oct 30, 2016 7:41 pm

supershifter2 wrote:
stratele52 wrote:Try a 0.0047 MFD on the switch.

This work very well to silent stanby switch

It's not the stanby switch making noise, it's the reverb/vibrato foot switch making the pop noise.



I know, but a switch is a switch and a capacitor can't hurt your amp
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