[Boatanchors] WTB 453.65 and 456.35 BFO Crystals

[whitebear1122 at comcast.net]

Thanks Bob for the reminder.  I had forgotten about them, and they would be a good last resort option.  Before doing that I might just leave the BFO as is.  For a while I was thinking about adding a synthesized local oscillator and BFO, and really ease the pain of oscillators, but in the end decided to leave most of W1DX’s design alone.  I am tweaking it a bit by replacing the diode detector with a product detector.  

Thanks and 73, Scott WA9WFA

 

 

From: Bob Groh <bob.groh at gmail.com> 
Sent: Saturday, October 8, 2022 11:41 PM
To: wa9wfa <whitebear1122 at comcast.net>
Cc: Boatanchors List <boatanchors at mailman.qth.net>
Subject: Re: [Boatanchors] WTB 453.65 and 456.35 BFO Crystals

 

One possibility (not as easy as just using a crystal (if you can get one and if you can trim it to the frequency you want) is to use a programmable synthesized source such as the QRP_Labs 'ProgRock':

https://www.qrp-labs.com/progrock.html 

 

Inexpensive - only $18 plus postage. If you want a 'tube' type, slip in under the chassis - I'll never tell anyone.

 

73

Bob Groh, WA2CKY