[Boatanchors] HBR Receiver BFO Question

Rob Atkinson ranchorobbo at gmail.com
Sat Feb 24 14:38:33 EST 2018


How are you looking at the plate sine wave?  How is the scope picking it up?

Rob
K5UJ

On Sat, Feb 24, 2018 at 1:13 PM, Whitebear1122
<whitebear1122 at comcast.net> wrote:
> Hi, I am working on the HBR-13 build.  Just finished the BFO and have powered it up separately.  I have a question regarding the output waveform of the oscillator.  While I scope out the grid side and get a nice sine wave, the output of the BFO is not symmetrical.  It’s on frequency, it sounds fine, but it’s not a sine wave anymore.   I tried submitting this post last week with a small photo but it never came through. I have a photo that I can email.  What is the BFO output wave shape supposed to look like?  Is it supposed to be a sine wave?  Thanks, 73, Scott WA9WFA
>


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