Galaxy 3 Transceiver.
Hello all have bought this galaxy transceiver minus the external power supply and speaker does anyone have a circuit diagram of this power supply that goes with this unit.i have to build it.
Took a look at what it needs and with all the information it looks like this would work; http://bama.edebris.com/download/galaxy/ac400/ac400.pdf.
The other option is this one; http://bama.edebris.com/manuals/galaxy/ac35/.
Galaxy III: transceiver, 3 band: Ad: APR 64 QST; price
$349.95 wired; 300 watts CW/SSB; 80 thru 20 meters; sensitivity
0.5 uV at 10 dB signal to noise ratio; 6 pole 9.0 MHz crystal
filter; selectivity 2.1 KHz at 6 dB, 3.8 KHz at 60 dB; carrier
suppression exceeds 45 dB; unwanted sideband suppression exceeds
55 dB, audio derived AGC free from pops and pumping over 40 dB
range; drift less than 100 hertz in any 15 minute period after
warm-up; less than 100 hertz change with 10 percent line voltage
change; 5 kilohertz dial calibration with over 8 inches of
circular scale length; two speed tuning (72:1 and 12:1), 6CK6
driver; pair 6GH5 finals; weight 13 lbs; power supply
requirements, 800 VDC @ 400 mA, 340 VDC @ 200 mA, -100 VDC @ 35
mA, 12 VDC @ 1 A, and 12 VAC/DC @ 5 A.
Some of the older Heahkit HP-23 series may be usable as well.
Hope this helps
Last edited by KO6WB; 05-21-2012 at 11:07 AM.
A Heath HP-23 series power supply should work fine with this unit. You would have to add circuitry to the 12.6 VAC "filament" winding to get the 12 VDC required for the relay switching. However, this is not hard to do.
Thank You Glen
Thanks fer info well now i have something to start with and try to get this old girl fired up i love american gear especially from this era.
Originally Posted by K9STH
Again thank you Glen and if i can assist u in anyway just ask.
Thank You Gary for all the info i maybe able to use old transformer i have from FTDX400 XCVR lying around have to check what ratings it is at but i think will be okay it did power this ftdx-400 ran about 300 watts according to manual.If i can assist u in anyway please feel free to ask more than happy to.