[NJARC] BC-348Q Power Questions(2 of them)

[Scott Roberts]

Hi John-
I was shooting for 228VDC, after rectification, filter
& 2 electrolytics, it was 350VDC. Under load, it is
190VDC or so. Just powering up the radio brought it
down there.

Scott

--- john ruccolo <jr6v6gt at yahoo.com> wrote:

> Visit our web site - See http://www.njarc.org
> _______________________________________________
> Hi Scott,
> 
> How did you finally get the B+ down in that power
> supply? Hopefully *not* by overloading it with a
> low-value bleeder resistor. Do you know how much B+
> current you're drawing?
> 
> I thought you said you needed (or wanted) 250V?
> 
> BC-348's are fun to play with, aren't they?
> 
> Regards,
> 
> John
> 
> --- Scott Roberts <ng19delta at yahoo.com> wrote:
> 
> > Visit our web site - See http://www.njarc.org
> > _______________________________________________
> > Well, after the meeting Friday, I got onto
> > tightening
> > up the power supply I was building, and finally
> got
> > all fitted in and set up last night. End result-
> > 190VDC under load, so not so bad I suppose. I seem
> > to
> > be pulling in signals on all bands at this point.
> > I'd
> > had a small issue with the BFO adjustment- I'd
> > absent-mindedly and inadvertantly turned the shaft
> > with the knob off, and had to reset it. Happily, I
> > had
> > directions to do so in the BC-348-Q tech manual,
> and
> > it took only a minute to find the zero beat, and
> set
> > it. Seems to work quite adequately. There is still
> a
> > slight hum, I need to figure out where to throw in
> > another electrolytic to filter it out... May just
> be
> > the volume control needs cleaningI do notice
> > differences with vc fiddling)
> > 
> > Now if I can improve the antenna...
> > 
> > So far, I've been pulling in signals from assorted
> > hams, Canadia,(where Canadains come from), Radio
> > Havana, Cuba(very loud and clear &
> > non-pro-American),
> > Canadian time signal, Chinese broadcasts...Oh
> yeah,
> > religious all over the place, as usual. Had a nice
> > vox
> > received and listened to for a bit- one e nd was
> in
> > Wisconsin, and it was a nice strong signal.
> > 
> > On to the next project!
> > Scott
> > 
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> 
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