I'm actually quite curious to see if this works well, a friend of mine asked for a noise gate and I was tossing up the MXR gate and a bootstrapped twin-T notch filter; this seems much less complex than the MXR and perhaps a better choice than the notch. I'll tackle this one later today (seeing as it's 12:46 here already...)
Great to hear it works! I think my friend will like this.
The circuit came from a guy on Techniguitare (a French guitar forum) and I had a read through the thread on it, and though my understanding of the language is pretty good, the crude colloquialisms kind of kicked my ass so the information I could glean from it was fairly limited (translation was essentially useless).
To that end I can't even remember what the trimmer was for... I can try and find it again if you'd like.
Also sorry for any formatting mistakes, I'm writing this on a new tablet that I'm still learning how to use
It would be great if you could. However, this may help (I'm sure you ran across this before)
These few images at least show some growth on this circuit but the last - "could be" what the trim is but the values don't line up.
I may replace the trim with 100k to see if there is more play or move it to a pot. I also wonder (and here's where m ignorance takes over) if the trim may tinker with the voltage on the emitter of both/either the MPSA18 and BC5447C ( 6.5 and 6.0 respectively).
Admitted, image 3 may not even be this circuit or may has evolved.
Yeah I saw these. The first two are this circuit, and I believe that the second one is just the same circuit as the schematic you posted; in which case, Alex's layout is nicer. I don't think the third layout is the same circuit.
The schem you posted is the "evolved" version, it started off a little different (most notably, transistor spec was changed for less noise when engaged as people were complaining about noise... ironic).