[Ron Ramirez]

Last night I noticed something interesting when scanning the schematics, getting ready to doze off... A lot of the resistors are marked with M rather than k suffixes. ...Do many other schematics call out values this way?

Yes, there were some companies which listed their resistors in that manner. Keep this in mind: If you see a resistor labeled 47 M on a schematic, it is 47K (47,000 ohms) and not 47 meg. Manufacturers who did this were referring to the Roman numeral "M" (which equals 1000). These same schematics will usually spell out a resistor which is in the megohms as "2 MEG." or "2 MEGOHMS".

I recall Magnavox used to do that. Way back, about 500 years ago, the first radio I ever owned was the chassis and speakers of a prewar Magnavox Belvedere (CR-181). This was in 1974 and I was 14 years old. I contacted Magnavox (they were still an independent company then, this was before the Philips buyout) and they sent me a photocopy of the service manual, free. Its schematic had resistors in the kilohms printed on the schematic as "47 M". I soon figured out they meant 47K! (I seem to recall that a letter I sent to Jim Fred on that subject came back with the reply confirming that.)