[sdiy] Black Magic oscillator cans

[Neil Johnson]

> The 4046 (or at least any of its 74HC/HCT variants (4046, 7046 and 9046) is
> able to spit out the 2.00024 MHz you want.

The Jen SX1000 uses a VCO based on a 74HC221 to generate the 2.00024MHz
clock, and you get both (a) tune knob to tune in with whoever you're
playing with, and (b) vibrato from the LFO.  The circuit is basically
RC-oscillator.

Page 1 has the master oscillator:

http://www.milton.arachsys.com/nj71/index.php?menu=2&submenu=4&subsubmenu=1#Schematics

Neil

--
Neil Johnson :: Computer Laboratory :: University of Cambridge ::
http://www.njohnson.co.uk          http://www.cl.cam.ac.uk/~nej22
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