[Lowfer] Power

Wed, 14 May 2003 15:24:14 -0700

I havent checked for noise but I suspect it may be pretty bad
Another unit,, not as well designed and filtered I converted to
13.7 volts. Works good but is really noisy.

It also occurred that one could install a shim held in place with Silicon
calk and mount the PS board on this and then isolate the case from B-
I think I will do this as there is enough vertical room in the case. It
will then be less likely to have something conductive bridge the cases

you need a load to get the regulator working thus the 1/2 amp load on 5
volts

for TX/RX shouldnt be a problem though. I loaded the 35 volts down
with a Pc of double sided PC board,, +- to each side and dunked in 
salt water. Was surprised to see 12 amps Mself
makes a nice lite weight supply

Try it you will like it

Bob  K3DJC

On Wed, 14 May 2003 11:20:27 -0500 "Peter Barick"
<[email protected]> writes:
> 
> >>> [email protected] 05/13/03 10:56PM >>>
> 
> > I got working three older computer power supples by wiring
> >across the 5 volt buss a 10 Ohm Resister then connected the
> > 12 volt leads in series, This works well ...
> >Bob  K3DJC
> ===============================
> 
> Hey Bob, clever and gets the Amps as well. Is it that the resister 
> on
> the 5V line is required as a "sense" load, else no output?
> 
> Have you checked for rx noise pickup at 137 for this setup? Yes, I
> expect you will not be tx and rx same time, but there may be a 
> condition
> when not tx but supplies are on and wanting to rx.
> 
> Peter
> 
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