23-08-2017, 10:06 PM
Not sure whether this is known but it answers partly an original question - see this link for schematics (see Russian radio section).
The R-326 is a good circuit to look at. I also have R-126 but on this site the link does comes up with an error.
The R-326 is a good circuit to look at. I also have R-126 but on this site the link does comes up with an error.
