EMRFD Message Archive 444
Message Date From Subject 444 2007-02-06 02:49:49 ter753 vfo and splitter Ed, I just read your post and would be very interested in a schematic
of this. could you e-mail it to me?. thanks! terry lynch EI3IZ
447 2007-02-06 15:06:39 topossibilities Re: vfo and splitter [I just read your post and would be very interested in a schematic
Just up-loaded the schematic for the 75M VFO with a pair of I-Q
outputs to the file section.
448 2007-02-07 04:37:08 Bill Noyce Re: vfo and splitter > Just up-loaded the schematic for the 75M VFO with a pair of I-QNice design. I assume U1 is there mostly to buffer and square up the
> outputs to the file section.
> Ed, W1AAZ
If you already have a digital-level VFO at 4x frequency, you can apply
it directly to
each of the 2 flip-flops in each Johnson counter, if you change the D
input of the first
stage (pin 12) to come from the Q/ output of the second stage (pin 6).
-- Bill, AB1AV