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Hey out there,
I'm curious if anyone has any ideas about mod'ing an effects loop to reduce the introduction of emi / RFI noise. Im working on Verne Andru's series of mods for a crate v8.
More background: I find that there is significant noise introduced simply by plugging in an insert cable. This diminishes greatly when the leads are hooked up to a pedal. If I was using a single pedal in this fashion I would be pretty okay, but I've found that the more pedals I introduce into the signal loop, the more noise is generated. This is the case even if all the pedals are set to bypass (all of them have true bypass).
Anyway, it totally makes sense that I would hear more noise with more pedals, as I am essentially building a longer antenna with each pedal. So I think I understand the problem, but don't know the best way to address it.
One thing I'm considering is adding a grid resistor on the second half of the preamp tube. The effects return goes into the second half of the tube, so I think this might be a good idea. Any thoughts? Would this do the trick?
I'm worried that this approach might work, but could also suck additional tone and volume. I've already noticed a drop in volume when using the effects loop at all. I'd love to fix that as well, but nothing obvious comes to mind. Suggestion? Any way I might be able to have my cake (lose the noise) and eat it too ( maintain volume and tone)?
I'm curious if anyone has any ideas about mod'ing an effects loop to reduce the introduction of emi / RFI noise. Im working on Verne Andru's series of mods for a crate v8.
More background: I find that there is significant noise introduced simply by plugging in an insert cable. This diminishes greatly when the leads are hooked up to a pedal. If I was using a single pedal in this fashion I would be pretty okay, but I've found that the more pedals I introduce into the signal loop, the more noise is generated. This is the case even if all the pedals are set to bypass (all of them have true bypass).
Anyway, it totally makes sense that I would hear more noise with more pedals, as I am essentially building a longer antenna with each pedal. So I think I understand the problem, but don't know the best way to address it.
One thing I'm considering is adding a grid resistor on the second half of the preamp tube. The effects return goes into the second half of the tube, so I think this might be a good idea. Any thoughts? Would this do the trick?
I'm worried that this approach might work, but could also suck additional tone and volume. I've already noticed a drop in volume when using the effects loop at all. I'd love to fix that as well, but nothing obvious comes to mind. Suggestion? Any way I might be able to have my cake (lose the noise) and eat it too ( maintain volume and tone)?
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