Buff n Blend question about phase inversion.

Nic

Well-known member
Ok, a year or so ago, I build the AionFx Polaris, which is the Human Gear Animato and had the brilliant idea to wire a Buff n Blend in point to point with it. Long story short, it never really worked and went to to non functional pile to debug later. I want to use it on bass.

Fast forward to this week-end, I've build a Buff n Blend on perf board and this time, it works (I don't think my signal routing was right and I fucked up some connections in my original try). Well, it kind of works.

When I engage/disengage the effect, there is often a clear loss of volume before it goes up again. So here are my questions.
1 - Did I do something wrong again : bad bias of the J113 or something else ?
2 - Is the Animato inverting the phase : It got 7 transistors, 2 of those being a Sziklai pair, the 5 others being 2N5088 (2N5088 in BOM, 2N3904 in the schematics), again 2 arranged in a Darlington pair I think ?
3 - What are the symptoms of an inverted phase pedal with the Buff n Blend
4 - If the problem is phase inversion, where in the buff n blend could I add a phase inverting circuit, like should I boost the clean effect, or before the effect, or after ?

GuitarPCB recommends to use the Stage3 to invert phase, my initial thought was that adding a boost on the clean signal, but would it be a good idea. I don't know if I would add the pot or a fixed value, the fat switch might make this even more versatile.


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Turns out stupid me did stupid things.

When I engage/disengage the effect, there is often a clear loss of volume before it goes up again. So here are my questions.
1 - Did I do something wrong again : bad bias of the J113 or something else ?
---> YES I DID ... I tried testing it again yesterday evening and noticed it would not bypass if not powered. So it turns out I inserted the buff n blend at theaudio jack, and included the bypass switch in the send return loop of the buff n blend. I've rewired the buff n blend to the correct pads and now it's doing it's thing flawlessly.

The polaris must be one of the boards that gave me the most trouble and I wanted so much to make it work with the blend.

I'll call that mission accomplished !
 
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