Transistors and NE570 in modulation and delay.

Stompboxes circuits published in magazines, books or on DIY electronics websites.

Transistors and NE570 in modulation and delay.

Postby POTL » 29 Jul 2018, 22:37

Again, all welcome, I almost closed the questions on the technical aspects of the pedals, here's another 2:
1) The circuits below are transistors in the effects of BOSS BF-2 and MXR Flanger and Ibanez FL9.
I noticed that in almost all modulation schemes there are transistors between the LFO and the clock.
In the BOSS CE-2 chorus, I understood everything clearly on the electrosmash website, but for example there are no transistors in the EHX Small Clone chorus.
Tell me more about what these transistors are doing and how their combination is technically called.
I'm interested in understanding how each node works in effect and this is the last thing I do not know.
Снимок экрана 2018-07-30 в 0.27.33.png

Снимок экрана 2018-07-30 в 0.26.56.png

Снимок экрана 2018-07-30 в 0.42.15.png

2) Compander in the delay effects of BOSS CE-2 and EHX DMM, I read the NE570 data sheet, but still do not understand how it works, I know it's a compressor and an enchaser, I understand what they do in the circuit, but I have questions
A) what is affected by the components' ratings in the piping of the chip
B) why the EHX circuits are so different from other circuits that they use more components and use more connectors than those of other manufacturers.
If you know this chip well, please tell us more.
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POTL
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Re: Transistors and NE570 in modulation and delay.

Postby POTL » 30 Jul 2018, 21:48

bump
POTL
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