[Milsurplus] BC-348 Reduced B+ Report

[David Stinson]

One of our members asked:


> Dave do you think any of those "boosting and bucking" regulators can 
> be modified to
> output 90 or 100 volts?

No need to modify.  Here ya go:
http://www.ebay.com/itm/170876068976

I'm using one of these for B+ and one of the small
"buck" regulators to power a battery set from a single
12-VDC gel cell.  Works great.  No RFI problems,
at least so far.

NOTE:  There is one down-side.  These are non-isolated-output.
Your -12 volts in is your -90 volts out.   So you can't use them
if your require floating-B-minus, like in a BC-474.
There are a few isolated-output DC-DC parts, but they are 
more expensive and fewer available.  The makers tell me 
more and less expensive isolated-output modules are coming.

73 DE Dave AB5S