[time-nuts] Interesting widget for 5MHz standard fans

[ed breya]

Walter, for you Rb box, look for info on the common Efratom standards of 
that vintage, and see if any look like what you have inside the plug-in. 
I remember the FRK and M-100 (a variation of which I have). These are 
the ones in about a 4 inch cube format. They may not exactly match 
yours, but there may be enough similarities to help figure some things out.

Ed