Building a basic QRP homebrew BITX - Part2

This video describes part two of a multi part QRP homebrew project - the BITX transciever for 40M. In this second installment we look at the BFO and balanced modulator signals. We then build the audio stages and test on RX and TX.
Part 1 is here: • Building a basic QRP h...
The Schematic for the mixer I have used is here:
www.qsl.net/g/...
The Schematic for the Crystal filter is here:
www.qsl.net/g/...
The diode matching setup is here:
www.qsl.net/g/...
Full rig schematic is here:
www.qsl.net/g/...
I hope you enjoy! If you do, feel free to buy me a coffee:
paypal.me/markg0mgx
** UPDATE **
In the video I had issues balancing the balanced modulator. I have added some capacitance to either side of the bridge as shown in this updated schematic:
www.qsl.net/g/...
With careful adjustment back and forth between the trimmer cap and the balance pot I have managed much better results:
www.qsl.net/g/...
I hope you enjoy! If you do, feel free to buy me a coffee:
paypal.me/mark...

[@awksedgreep]

Thank you for putting this together. It's very close to what I had been working out in my head. Watching you do this convinced me to go ahead and buy that KX2 and abandon my brain.

[@MarkG0MGX]

Oh dear, thats quite the opposite of what I would have hoped :-(

[@acestudioscouk-Ace-G0ACE]

A great follow on from the first episode.

[@MarkG0MGX]

I'm glad you are liking it.