Wednesday, June 15, 2011

how to read 'dog bone' resistors from the 1930's

I'm running into some very old resistors while restoring the '37 Silvertone. Here is how you read these 'dog bone' resistors, apparently the Philco color scheme is the same as Sears Silvertone:


Also note that in the schematics for this radio the unit M means kilo ohm. Meg means Mega Ohm, and ohmega means simply ohms.