Wiardgroup

--- In wiardgroup@yahoogroups.com, "grantrichter2001" <grichter@a...>
wrote:

> 
> The Moog 904 A, B and C setup was incorporated in the 300 
> Boogie design. The top half is the A and B modules and the 
> bottom 4 knobs are the filter coupler (904 C).
> 
> It violates the "no dead knobs" rule because, when the coupler is 
> switched in, the coupler frequency control disconnects the 
> individual frequency controls on both the lowpass and highpass 
> sections. I guess one could add LEDs ala Buchla to show which 
> controls are active in what mode.

Oh, so the bandpass section is really just another set of controls for
addressing the Hi and Lo pass sections? I thought it was an additional
filter. I guess that explains the "bandpass on" switch!

BTW. I heard that Hamamatsu has discontinued the dual cell
photocoupler. Small Bear electronics has them, tho I guess you are
able to use the silonex fast ones anyway.

Mark