Hi all, I'm working on a Emerson 108 chassis and the speaker is trashed. Looking for suggestions to install a PM speaker in its place. There is very little space in the radio to work with. Was thinking about putting a 25 watt wire wound resistor in place of the output transformer on the speaker. Thanks A Million, George T

Presume that you mean "field coil", not "output transformer". If so, the field coil in this set is one of the few that isn't used as part of the pi filter choke in the B+ supply- it is just a load from B+ to the B- bus. So, you should be able to eliminate it and forget about it. B+ may rise a bit but that shouldn't be a problem in this transformerless set, where B+ was fairly wimpy anyway. More important will be figuring out the secondary impedance of the output transformer and finding a PM speaker to match it- these old sets had speaker coil impedances that varied all over the place, apparently at the whim of the manufacturer.

:Presume that you mean "field coil", not "output transformer". If so, the field coil in this set is one of the few that isn't used as part of the pi filter choke in the B+ supply- it is just a load from B+ to the B- bus. So, you should be able to eliminate it and forget about it. B+ may rise a bit but that shouldn't be a problem in this transformerless set, where B+ was fairly wimpy anyway. More important will be figuring out the secondary impedance of the output transformer and finding a PM speaker to match it- these old sets had speaker coil impedances that varied all over the place, apparently at the whim of the manufacturer.
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Your right CV field coil my bad. I just got the radio chassis back from Alfred Corbin a top knoch radio guy and the problem I have is it barely picks up 2 stations and you can hardly here them he couldn't figure the problem out. I also have another chassis I sent to Edd over a year ago and have no idea whats up with that one. They are for a Westinghouse WR-100. I recapped the original chassis but couldn't get any stations pretty much the same thing as with this one. I have several hundred dollars into this project I would have been better off doing the repairs myself but I just don't have the time with all of the radios I'm working on for Rick's Restoration's to get to my own projects. One thing I do have is a working 108 chassis that I can compare with the unworking chassis or chassis's, just going to be sometime until I can get to them or it. Thanks, George T