Treble booster options

Ctrl4Smilerz

Ctrl4Smilerz

Well-known member
Hi all. I am interested in building a treble booster, but don't know to much about them. The Analogman Beano Booster is widely praised but I have seen a DIY version out there. In fact there doesn't look like to many PCB's exist for what seems a relatively simple circuit. The one option I have found is the Aion Radian Germanium Boost; Are there any good mods for that? I haven't attempted a stripboard/vero project before but would consider it if there is a great circuit available. What are your favorite DIY treble boosters?
 
mybud said:
Robert has this one, which allows switching through a range of caps for moar toan options.
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I built one and have several other RM circuits to compare. The Rangefinder is great. It's easy to bias the transistor and the many tones available with the rotary switch make it quite flexible and useful.
 
Ctrl4Smilerz said:
Hi all. I am interested in building a treble booster, but don't know to much about them. The Analogman Beano Booster is widely praised but I have seen a DIY version out there. In fact there doesn't look like to many PCB's exist for what seems a relatively simple circuit. The one option I have found is the Aion Radian Germanium Boost; Are there any good mods for that? I haven't attempted a stripboard/vero project before but would consider it if there is a great circuit available. What are your favorite DIY treble boosters?
Click to expand...
I am highly biased, but by far my favorite is the resonant LPF section of this open source project: https://github.com/Passinwind/PW3B-LPF

There's a different LPF board with a non-inverting front end that is primarily meant for onboard preamps, but works fine in pedals too. I plan to do a design fork for that on Github eventually, but health issues have pushed that back for the moment. Once I document it there will be a board share link to OSHpark and Mouser BOM as well, but you could also download the board fab files and use JLPCB or whoever as desired.
 
Ginsly said:
What do you typically do with the fourth lead on transistors like that? I've seen some people clip em and some ground em - so you just kinda tuck it back and leave it unconnected? I have a few like this and could never get a straight answer about what was best...
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According to Google and some DIY sources, the fourth lead connects to the transistor case and can be left disconnected or wired to ground.
 
If you want to go 1 up from the chickenhead the pedalpcb dragon's breath adds a heat control that adds saturation. It's a clone of the catalinbread naga viper.
I built a vero version and love it, except the vero version sometimes has a footswitch popping issue, I've been meaning to replace it with a pcb but haven't got around to it.
 
Tagboard Effects has vero layouts for both the Naga Viper and Runoffgroove's Omega circuit. They're both awesome circuits.

If the Omega circuit had come from a boutique builder that gooped the board and went out of business in 2009, people would be talking about its magic components and driving the Reverb prices to foolish levels.
 
Yeah the forth leg has no benefits from my experiments. I end up clipping it or, putting it off to one side. These are odd Japanese germaniums I found in a bin.
 
The POCB Carmine drive is another cool one.

I dont have any npn germs so i made a board to use a pnp germ in it and then added a baxandall at the end of it turned out interesting.
 
mybud said:
It’s to eliminate RF interference as I understand it. This most likely doesn’t affect audio frequencies AFAIK.
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I've mostly seen this is radio and test equipment. they wanted NO interference. we operate in a much more forgiving bandwidth. I just cut them off
 
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