Are you sure you actually need to modify the ring mixer diodes? When I got around to looking at one of my (now two) 525D's I noticed there are a few differences even in the same model run. I've been
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Thu, 19 Apr 2007 17:12:29 -0600
Actually HP used to claim that Schottky diodes from the same envelope or batch were very closely matched which is a lot closer than silicon or germanium junction diodes matched. Remember that the jun
My point was that you aren't going to get a better match from 4 HP separate diodes (which may or may not come from the same batch) than the integrated ring so that mod is not worthwhile Do you agree?
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Thu, 19 Apr 2007 20:01:25 -0600
Depends on the integrated ring's properties. Balance isn't the only thing, dynamic range, insertion loss, and noise are factors in the radio's performance, only indirectly affected by balance. If the
In reply to the Ten Tec Argosy receiver Mixer postings My Argosy Serial# 00721 has the 2 1496 Ic's on the mixer board so it is the early version of the Receiver Circuit. Mine has the 223 NB Board. I
Wow! I didn't think anyone was going to reply. Not quite enough to start our own Argosy email list then :-) And you have a pair of 1496's too. For the rest of you with Argosy's (particularly the Argo