[Drake] SP-75 speech proc.

[WA2JJH at aol.com]

Someone on the air said.... Yes you do sound louder. However the circuit is 
such an old design, I should ust use it as shack scenery!

  Yes I do know other maker in line procs that upconvert to RF, RF clip and 
filter, then down convert back to audio.

  Is the SP-75 that bad? It was thinking of building a combo board. It would 
replace the NB board. I would have a new desig NB and a true in line RF speech 
proc.

  Any one try this. Any idea's?