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#1
29-04-12, 05:13
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Am I wrong.....
..in thinking that the receiver works on 250 volts DC.......??
Hi Bob In the old days we use to have huge heavy AC voltage regulators..... adjustable from 110 to 130 ...... so if one dialed 125 V steady and flowed it into a 2 to 1 step up tranformer you would have almost steady 250 AC volts output...(your amps reduced in half )... then you would need to convert to 250 DC....... Another questions for the "Esspurts" ....... what voltage do the tube (valve)filaments run on the 19 sets....... 12 volts DC or the same source of 250 volts DC.? It's been a long time since technical school....? I still have a rotary transformer from a 19 set that my DAD used for burning is VAC initials on all his tools. Bob
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada 
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#2
29-04-12, 10:51
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The receiver will work from about 200-265 vdc. The actual dc output voltage of the power supply depends on the transformer secondary and the type of rectifier/filter used. Besides output voltage the transformer should be rated at about 150 ma output current.
The MKIII vibrator portion generated it's receiver voltage from the battery. The output voltage would change depending on battery charge. The filaments are run from 12vdc even with the power supply switched to 24vdc.
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#3
29-04-12, 21:27
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An Old Trooper
Just vewing the forum, I took my trg on the WS19 back in 1952 at Camp Utopia, N.B. I have forgot everything I learned. But I do have a transformer the same asthe one pictured by Derek, also dated 1950. Don"t know whether it works or not.
Bob
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#4
02-05-12, 03:49
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Attention Bob P.
Look at this...... may already been converted to 110 V
http://www.ebay.com/itm/WWII-Signal-...item41653de675 Good luck Bob C
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada
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#5
03-05-12, 04:01
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19 set on ebay
That radio is heavily modified, the 'B' set and the intercom have been removed to make room for the power supply, and who knows how many other things have been done to the internals, it would be quite expensive to restore to factory specs.
If you are are looking for orignal don't waste your money, for a ham operator it's OK.
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Roberta Jayne Melville CD II QJ MK I * universal carrier 1942 WLC Harley under restoration 1957 M38A1 jeep R.E.L. optical equipment Military manuals Field phones MK II 19 set (needs work) 4 MK III W-19 sets AN/PRC-9 CPRC-26 WS-29 componets WS-38 AFV WS-38 MK III WS-48 with generator WS-58 MK I MK V heliograph
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#6
10-01-13, 22:24
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circuit for 220v AC power unit 19 set
see circuit diagram how you can build one will easily fit into older WS19 PU housing
 Peter http://www.milmarket.org
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Hybrid Mode
