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Greetings from Cajah’s Mt ~ ????…
I wired up the switch mod board w/ an on-on toggle switch.
I wasn’t sure about the diodes on the main board, so I removed both sets and populated the mod board with two Ge’s on one side and a couple of 4148’s on the other,both symmetrical.
Both worked great. The only problem is that one side is considerably louder than the other. I thought that this was due to the difference between the diodes. ( I know that some diodes are “louder” than others in comparison.)
So, as a control type setup, I put identical sets on both sides, and, lol and behold, one side was still louder than the other! Unfortunately, I don’t remember which side of the switch, A or B, was louder.
Anybody got any ideas? I’d appreciate the help…????
Greetings HlyGhstRydr55. There is a ton of information out there and probably much experimentation in the future. In the mean time know that it is about ‘forward voltage’ of each type of diode. In this case you are looking to even out the difference in volume between pairs when switched. Stacking the diodes is a simple way to achieve this. As far as the control setup not being identical, not sure. Triple check yourself and use a DMM for sure for that. The general consensus is that 4 GE diodes (2 in series opposing 2 in series) is pretty close to an opposing pair of Si diodes. Conclusion for today is to add two Ge diodes. Let us know what happens. Cheers
One important note to face about using multiple diodes in a clipping circuit . . . .
The fewer diodes/LEDs in series, the lower the volume will be. It’s the total Fvd of the combined in-series diodes/LEDs that affect the volume. The lower the total Fvd, the lower the volume. That how clipping elements work.
I see the common complaint of different levels resulting from switching has been voiced again.
A clever solution was offered by the famous “TONMANN” back in 2014. That was EIGHT years ago! My my how time flies.
He offered a way to use a DPDT switch to change a resistor value at the same time the diodes were changed. Check it out here:https://guitarpcb.webs.com/apps/forums/topics/show/12228312
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