[ARC5] 12 V Power pentode.

[Kenneth G. Gordon]

On 10 Apr 2016 at 15:30, Arden Allen wrote:

> > .....What if you had a device the size of a quarter-
> would fit right at the base of a tube.
> It can handle up to 3 Amps.
> Input 4.5-28 V.  Output adjustable  0.8-20 V.
> Cost for this little gem?  99 CENTS with free shipping ........
> 
> ........http://www.ebay.com/itm/371451400661
> 
> As eBay descriptions are often in error, is this magic device really a step 
> up/step down DC-DC converter?

Sure looks like it. 

It is an SMS, as the ad says the switching frequency is 1 MHz., and it works only at DC, 
not AC.

Looks pretty neat.

Dave Stinson mentioned that he had bought several.

Ken W7EKB