[TMC] VOX

[Telegrapher at att.net]

I currently have in operating condx a VOX-2.  Only problem is that the HFO and VMO run continuously as it should.  Even turning off the "HFO" power (B+) i still get a considerable signal out of it and so it affects the receiver a lot.  Interference is the word here.  

What i'm thinking is that in order to curtail this radiation a method of turning on and off of the HFO 6C4 is in order.  Something like opening the cathode of that tube and then turning it back on with an externally controlled relay. 

I know i have left out a lot of details about this so consideration is what i'm asking for.  I have a very nice adjustable signal that reads as high as .9 on the 1.0 ma scale able all the way down to 0.  It makes no difference in the receiver though as it's almost like a tube is not being cut off allowing the signal to pass through.  BUT, this type of operation would not have been a problem when in commercial service if they were used in a split frequency operation.  In ham service though it is noticeable and irritating.

This is a nice unit and puts out almost 2 watts so would be a nice qrp transmitter also, kind of big and awkward so a real boatanchor.  Once again though a method of cutting off the VMO/HFO to eliminate the constant carrier output is a requirement.

Any designers out there with suggestions or objrectins?

Larry
W0OGH