[Milsurplus] EG-3 motor generator set for ??

WA5CAB--- via Milsurplus milsurplus at mailman.qth.net
Fri Jul 10 14:30:27 EDT 2015


That's true.  But all the more reason for combining the low-power receiver 
supply with the usually larger transmitter supply.  But in general, for most 
receiver supplies, there is also a separate transmitter supply designed to 
operate off of the same source (voltage and frequency).  The only exceptions 
seem to be 6 VDC, 24 VDC and gasoline.  That I've managed to ID, anyway.  

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480

In a message dated 07/10/2015 12:01:19 PM Central Daylight Time, 
RAFANTINI at salisbury.edu writes: 
> Early or pre TBX-8 radios that used the 34 tubes required very little 
> battery power so the receiver had a separate power that only had to provide 
> under 10 mA on the B+ and less than 400 mA  for the filament. The radio I had 
> was capable of running for hours on the battery pack that I put together 
> for its receiver. The transmitter required 12 volts at around an amp and the 
> 500 volt source for the plate and screen of its signal tube so you only 
> needed those two voltages when transmitting.
> Would assume that provided a radio that with the hand crank generator 
> required a minimal amount of equipment when used in the field.
> Ray F
> 
> -----Original Message-----
> From: Milsurplus [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of 
> WA5CAB--- via Milsurplus
> Sent: Friday, July 10, 2015 12:33 PM
> To: milsurplus at mailman.qth.net
> Subject: Re: [Milsurplus] EG-3 motor generator set for ??
> 
> The EG and EH were for the TBX transmitter. For unknown reasons, with one 
> late exception all of the power supplies for the TBO and TBX Series were 
> for only the receiver or only the transmitter. The exception was the 
> CRF-20337 12VDC Vibrator Power Supply, for the TBX-7 and TBX-8.
> 
> Robert Downs - Houston
> wa5cab dot com (Web Store)
> MVPA 9480
> 
> 
> In a message dated 07/10/2015 10:11:59 AM Central Daylight Time, 
> navy.radio at gmail.com writes: 
> >Hi gang - What equipment was this used for?
> >http://www.ebay.com/itm/131553638246
> >1939 contract date for EG-1 with same specs (EH-1 was the 115vdc motor
> >version)
> >500v @0.065A won't power too much...
> >
> >cheers,
> >Nick


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