[Johnson] Ranger (original) schematic needed
Singley, Rodger
rbsingl at ilstu.edu
Sun Sep 6 07:36:29 EDT 2009
Don,
It is on BAMA: http://bama.edebris.com/manuals/johnson/ranger/early
Note that in the original the modulator tubes are cathode biased; with the later units the negative supply for the bias is also used to provide grid bias to the 1614 tubes.
Rodger WQ9E
-----Original Message-----
From: johnson-bounces at mailman.qth.net on behalf of Don Ehrlich
Sent: Sat 9/5/2009 11:29 PM
To: johnson at mailman.qth.net
Subject: [Johnson] Ranger (original) schematic needed
I have the original Ranger without the time sequence keying circuit and would like to modify it to add the keyer deck. Any suggestions would be welcome but I can engineer and build it myself if I can only find a copy of the schematic of the *original* unmodified ranger so that I will know what I am starting with. I do have the manual for the later Rangers that do have the keyer circuits.
Don K7FJ
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