07-27-2007, 08:30 PM
Hello all, I am new to the forum. I am having fun with a model 60, have rebuilt all of the block caps, have added the wiring updates from the service bulletins, (all except the different compensators) and am having chirps and whistles on some of the AM stations and the SW band is very insensitive. (frequencies track properly on both dials, but I have to pump in huge amounts of RF to get a sound out of the SW band) I have cleaned and aligned it for the most part, and am looking for experienced owners who have been through this chassis and can help me with a few issues. What are the stage gains? Also, regarding the antenna transformer, does anyone know about the "extra" stage of the primary? (the one that reads .7ohms on the schematic) Someone before me had jumped one of the terminals to the chassis and it looks like it was this stage. Is this a tickler of some sort or a separate coil mounted on the bottom? What is it's value in mH? or is it a small part of the original coil? Any help would be appreciated. This unit is a challenge so far. I like to get them running as good as new or better, but don't know what to expect with this chassis. I know the old Police band is really the upper AM band and mine is not sensitive enough to pull in the upper AM stations (we have several here in Chicago) or even any static, but I can inject a very strong signal and can hear my tone. Thanks for the help in advance. Ron M.