[ARC5] P.S. Programmable Oscillators.

[Mike Hanz]

On 9/26/2015 11:06 PM, J Mcvey wrote:
> Dave, et all...Your most made me wonder what other inexpensive dc-dc device might be offered on Ebay and I found this:
>
> | DC12V 24 to DC 200-450V 70W high voltage converter b...US $14.54 New in Business & Industrial, Electrical & Test Equipment, Test Equipment |
>
> http://www.ebay.com/itm/DC12V-24-to-DC-200-450V-70W-high-voltage-converter-boost-power-supply-with-shell-/181770613759
>
> It might work out as a sub for the dynamotors.

There seems to be a zillion of these on ebay now.  I can only speak to 
several that I received last December from vfdclock, specifically chosen 
for the slender envelope that would fit within command receiver 
dynamotor armature dimensions:

http://www.ebay.com/itm/131556636645
and
http://www.ebay.com/itm/131587243051

They work pretty well as a drop-in "stealth" receiver dynamotor 
replacement.  See http://aafradio.org/garajmahal/virtual_armature.html

> I am hoping that it will be marginally sufficient as a transmit supply, at least it will have better regulation...

Given the plates of the 1625s alone draw 160-190mA (at ~560v, to be 
sure), I would be a little apprehensive that it would cut it, but 
perhaps at 400v output it might still be useful.  The size is quite 
reasonable considering the heat sink ~3-3/8" x 2" x 1-1/8".  I was 
amused by the warning to check the fuse - "when the power is big, the 
assurance may burn, you need to change to get the module back to 
work."   Good advice...:-)

73,
Mike  KC4TOS