Simple buffer !

Two very simple buffers prototype : one based on a 2N5457 J-FET transistor, the other with a Burr Brown OPA 134. No really differences between the two pedal, maybe the one with IC is lightly brighter … hard to say.

Switches :

  • switch on the right is simply Buffer On / Buffer Off (to test with or without ;-))
  • switch on the left insert a 6.8k resistor to “emulate” a guitar pick-up. Not a very accurate simulation, but it helps when buffer is in front of a fuzz face, for instance !
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