[Milsurplus] GRC-9 Power supply Question

[mac]

Greg,

You apparently have the DY-105  power supply.  Twenty-four (24) volts  
DC input, fused for 13 amps total.  There will be a much higher  
initial starting current surge, something around 50 amps or so for a  
few milliseconds on key-down depending on the "stiffness" of your  
supply.  Pair of 12 volt automobile batteries connected in series will  
run it just fine for a field-day's worth of intermittent use.

On the input power connector, pins A & B are tied together on the  
positive side, likewise B & C for the negative.  B & C also grounded  
to the PS chassis.

Don't be too surprised if the vibrator for the receiver PS doesn't  
work the first time you apply power.  Common problem requiring opening  
the can and cleaning the contacts.

Dennis D. W7QHO
Glendale, CA

The Tea Party - thousands of hard-working middle-class FOX viewers  
fighting to make sure the rich pay less in taxes.

**************

On Sep 20, 2010, at 9:21 AM, Greg Mijal wrote:

> Hi:
> I'm the new owner of a GRC-9 system and have a couple of questions  
> for the group.
>
> My rig includes the 28vdc dynamotor PS box.  I am putting together a  
> PS to run the rig from that box.  I need to know the DC current  
> requirements for the dynamotor and I also need to know the pin out  
> (4 pin DC input) in order to apply the 28 vdc
>
> Thanks
> Greg
> WA7LYO
> Kinston NC
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