[GreenKeys] Dovetron Arrival

[W8MAQ@aol.com]

Hi Group,

Well my Dovetron came today, much to my pleasure and I'm glad to have it. 
Now, to get it online. Someone I think mentioned the possible availability of a 
manual for these things. I expect the difficulty is in the fact that so many 
variants were produced for special purposes. This one has a couple of layers of 
daughter boards installed, with many unpopulated solder pads, cryptic 
nomenclature and little sense of what they do. It appears from a sticker on the top 
lid that it's set up for AFSK and one tone set looks like it might be standard; 
there's a KOS circuit it says, and M-S reversal (Is that an "RY" generator?) 
at 75 Bauds. Oh, evidently it requires an external interface for the current 
loop. I think Jack made a schematic available for one that operates the page 
printer. Will I need to use a polar relay to key the transmit side of the 
Dovetron from a M28 or M19?

Anyway, where can one obtain a manual for the Dovetron? I believe I have a 
power connector, but if not I can get one from Wm. Perry no sweat. It's great to 
finally have it in hand and now I'm eager to get it online for some copy.

I think my HAL will be on ebay soon :-)

73 Jim W8MAQ


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