[ARC5] DC Power Supply

[WA5CAB at cs.com]

Ben,

The GF/RU dynamotor output ratings are 424 VDC at 163 mADC.  If the B- line 
is isolated from the A- line, you might be able to stack two of them.  If 
their current rating is high enough.

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

In a message dated 10/09/2015 17:12:19 PM Central Daylight Time, 
kd5byb at gmail.com writes: 
> On 10/9/2015 6:43 AM, David Stinson wrote:
> >>I just received two of the DC12V to DC24V 100V-250V 70W Converters.
> >
> >Thanks for keeping us updated, Peter.
> >If I've done the math right, 50 uFd should give an Xc of
> >about 1 Ohm to ground at 3 KC.
> 
> I've got a couple of them heading my way, arrival date TBD as they've 
> not left China yet.  I'll post my results.  I'll probably try an LC 
> filter if mine show the same 3 KC noise.
> 
> I'm hoping to use mine as dynamotor replacements for SCR-183 and RU/GF 
> sets.  Actually, I'm not sure what the current draw is on the GF 
> transmitter, so it might not be a good match for the GF.
> 
> I'm very curious to see what switch mode controller chip they are using 
> and what sort of transistors.
> 
> How's the build quality?
> 
> thanks much and 73,
> ben, kd5byb
>