Fwd: Re: [HBR] Another HBR Project

[hbr@mailman.qth.net]

John (Mobile Engineering) made a very generous offer to try to locate 
a transformer but:  

> I'm not sure of the specs though.  Does this proposed transformer need to
> provide 150V @ 200mA (30W)?  If not, how much power does it need to
> provide? If regulation isn't critical we have a chance ...

I *think* I've got an answer for this project (one or the other of the 
'merged' R.S. filament transformers) but I'd be delighted to get one or 
a few for the future -- there are easily three more such projects 
milling around in my head and I want them *outta there* in the next 
year or two!

Ideally I'd wind up with 140-160 VDC 120 ma or so post filter.   So 
about 140 RMS if not too 'stiff', less if better regulated.   20 VA is 
probably ideal as size and weight are always an issue with an 
alumium chassis.    

In homebrewing, one compromises a bit ... anything close would 
probably be scored a hit.  Thanks!

Walt Hutchens
KJ4KV