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

[TrainBee at aol.com]

Steve,
Which month,  November or December?

Thanks,
Joe Devonshire

In a message dated  11/18/2007 8:00:30 P.M. Eastern Standard Time, 
sfgvoip at optonline.net  writes:
Visit our web site - See  http://www.njarc.org
_______________________________________________
Scott,
Just  to drive you crazy this month's, Monitoring Times has an article in
it's  Radio Restorations - Power Supplies for the BC-348. It includes plans
for a  solid state dynamotor.
Steve

-----Original Message-----
From:  njarc-bounces at mailman.qth.net
[mailto:njarc-bounces at mailman.qth.net]On Behalf  Of Scott Roberts
Sent: Monday, November 12, 2007 3:30 PM
To: New Jersey  Antique Radio Club
Subject: Re: [NJARC] BC-348Q Power Questions(2 of  them)


Visit our web site - See  http://www.njarc.org
_______________________________________________
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
> >
> >  __________________________________________________
> > Do You  Yahoo!?
> > Tired of spam?  Yahoo! Mail has the best spam
>  > protection around
> > http://mail.yahoo.com
> >  _______________________________________________
> > NJARC mailing  list
> > NJARC at mailman.qth.net
> >  http://mailman.qth.net/mailman/listinfo/njarc
>  >
>
>
>  __________________________________________________
> Do You  Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam
>  protection around
> http://mail.yahoo.com
>  _______________________________________________
> NJARC mailing  list
> NJARC at mailman.qth.net
>  http://mailman.qth.net/mailman/listinfo/njarc
>


__________________________________________________
Do  You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection  around
http://mail.yahoo.com
_______________________________________________
NJARC  mailing  list
NJARC at mailman.qth.net
http://mailman.qth.net/mailman/listinfo/njarc

_______________________________________________
NJARC  mailing  list
NJARC at mailman.qth.net
http://mailman.qth.net/mailman/listinfo/njarc  




************************************** See what's new at http://www.aol.com