lafayette: Lafayette D-10 ??

I hope I am using this correctly, I apoligize and will take a lickin' later. I picked up what I think is the Lafayette D-10. The only schematic I found here. The tube layout and numbers are a perfect match. What I would really apprieciate would be a better schematic. I can hardly read the list of components. I can barely make out the caps in the radio itself. never seen resistors like these. The only hint is that it says Junior on the dial face. Its just AM but it has a transformer, my first project with a transformer. I think I am the only one that been inside of it. All cloth wire. All waxie capacitors. 

Does any one have a better drawing?

It doesnt have the back, which is where the antenna would be, can someone suggest how to add an antenna? Can I make one? Iron core antenna? Wind my own?

Its not in good shape, wooden cabinet that apears to have been dropped. geeze!

I dont know how to post an image.

Thank you,

Justin-

 

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Probably the radio has had a metal back plate which was intended (or at least marketed) as a built-in antenna. Instead of that, just connect some length of wire to the "hot" end of the antenna coil. A short wire of one or two meters will be enough for local reception, if you are going to use a longer wire or maybe an outdoor antenna, its probably a good idea to connect a small capacitor of some tens or hundreds pF in series with it to not get too much detuning of the antenna coil.

I think the parts list in the schematic is at least fairly readable, often documentation for so old radios isnt much more readable than this. With some reference to other radios of similar design, most part values should be easy to sort out.

Note that the capacitor C11, between AC supply and ground, seems to have been 0,1 uF originally. It should for safety reasons be replaced by a capacitor with Y2 approval, maximum 10 nF for 110-120 V mains, to avoid too high leakage currents.

Also note that Lafayette seems to have used unusual prefixes for resistor values in the parts list - M for kiloohms and MEG for megaohms.

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