[Central-Electronics] 10B Exciter

[Colin Lamb]

Yes, the common 5 - 5.5 MHz crystals cover both 80 and 20 and are easy to find and easy to grind.  

Also, there are a number of digital vfos which you can put in a box and have nice stability (except for the 9 MHz crystal oscillator).  You need to step up the voltage, but it can be done with a step up transformer.  You might even be able to make the new vfo look like an ARC-5.

73,  Colin  K7FM