[TenTec] Spectronics DD-1 with a Triton 540?

[jmeade at telebytebroadband.com]

I use the OHR DD-1 Digital Dial with my Argosy.  It works great, and is easy
to build and calibrate. It should work fine with the Triton 4 also.

http://www.ohr.com/dd1.htm

73,

John W2XS