[Hammarlund] SP-200 Series

[Kl0nr@aol.com]

Hi All. Have questions, but, first what I have questions about.  I have what 
I believe is a Super pro 210SX,  5 bands 1.250 through 40 Mc., 
Electormagnetic speaker, and power supply with a terminal strip identified as 
SPKR Field.  Also, have the TM  11-866.
Questions:  Does anyone have a schematic that shows the connection for the 
electrodynamic speaker?  Are their, and  what are the changes in the receiver 
audio circuits for use of the electro speaker.  Is the field coil of the 
speaker used as a choke in one of the B+ supplies?  What would be the choke 
rating for replacing the field coil and using a PM speaker, that is, XX 
Henrys, XXXXXohms, etc.
Thanks,
Earle