Re: Would someone mind explaining to me how the BFO frequency circuit works?
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Are you asking about the BFO in the transmitter circuit?
The BFO in the transmitter circuit hetrodynes the 4.9-5.0 MHz single sideband signal with a 12.0 (approx) MHz BFO signal, giving 12+5=17 and 12-5=7 MHz output.? The BitX uses the 7 MHz signal which is amplified and transmitted.?
See the March 2017 QST for a nice article on the original use of this method in the antique radios section.?
On Thu, Feb 23, 2017 at 9:02 AM, <KD2BBW@...> wrote: I know a bit about electronics but not enough apparently!
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