Bias Buzzaround

[tuckster]

Hi everyone,

does anyone know wat's the appropriate volate for this specific Buzzaround ?
https://kurtballou.com/docs/N.E.W.%20DIY%20Buzzaround%20Build%20guide.pdf
Of course this can be dialed in by ear what fits the best but is there a recommendation?
With Balance maxed I can measure 0.2 - 2.2V on the test point.
I mean, there is a testpoint for the measurement so there must be some science behind it :-)
Unfortunatelly I can't find anything about it.

[antonis]

If you really want science, connect R8 directly to +9V and bias VC at +4.5V..
(but science isn't always funny..)

For more crackle-free science, place a 100nF (or bigger) cap between Q3 Collector and R9..