BBD-MN3010 and MN3011- is a MN3101 clock necessary?

[Harry Bissell]

You can also scrap the differentiator, and use several cascaded inverters
to get the
propogation delay... If they were in the same chip they should match pretty
well.

H^)   (but Mom....  BBD still suck!)

Tony Allgood wrote:

> The only problem I can see in using a 4017 or similar is that the
> deadtime of the two clocks is frequency dependant. You can do the whole
> thing with two sets of a CR differentiator and an x-or gate, this will
> remove the first part of any rising edge. The x-or gate is fed by the
> clock and the differentiated (spiked) version of the clock. The amount
> of time stolen off the front end is dependant on the CR values. A diode
> to remove the negative spike is useful to protect the logic IC.
>
> Regards,
>
> Tony Allgood  Penrith, Cumbria, UK
>
> Modular synth circuits, TB303 clone and Filter Rack
>
> http://www.techrepairs.freeserve.co.uk/projects.htm