Very recently I acquired a very early phasing type ssb Amateur transmitter, a Elenco model 77 that covers from 10 thru 160 meters with only 3 different coils in the output tank circuit. I do have a manual for it, but it's one of the most complex transmitters I've ever laid my eyes on. Apparently it uses 2 or 3 different reference frequencies to achieve the desired output frequency, kind of almost a superheterodyne receiver in reverse used for transmitting purposes. Additionally, from what I can gather, all Amateur frequencies between 10M and 160M are covered using only three different output coils. I stand corrected on my initial evaluation of it since I'm still trying to understand how it works before I apply power to it.
Does anyone have any experience with the above transmitter or know anything about them and how they functioned? Any information, no matter how small will be greatly appreciated. I'm trying to understand how it works before I apply power to it so I can find out if it is operational or not. If not, I'd like to get it going!
There is also a device that came with the transmitter that plugs into one of a few octal sockets on it's rear panel. it has a 6J5 and a 6SK7 tube in it. A cable terminates to a octal plug that could be connected to one of 3 female octal sockets on the rear panel. Could anyone possibly identify what this device may be?
if you know anything about the Elenco ssb transmitters, particularly their model 77, or have owned one at one time, I'd really like to hear from you! I'd love to figure out what I have in order to make it operational. My direct email address is: firstname.lastname@example.org
Thanks for the bandwidth!
Joe Cro N3IBX