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From: hr(bob) hofmann on 13 Mar 2010 16:09
On Mar 13, 9:51 am, "Peter Kolbe" <pe...(a)fhc.org.za> wrote:
> Thanks, PYE is correct.
>
> I found that the power switch on one of the controls has had it, bypassed
> that and the set has sprung into life,
>
> dunno how it is supposed to sound, but perhaps the caps are a bit had it.
>
> \Will carry on investigating, though being my first tube set, it is a bit of
> a learning curve from modern electronics.
>
>
>
>
>
> <Meat Plow> wrote in messagenews:3jd1hd.rq7.17.8(a)news.alt.net...
> > On Sat, 13 Mar 2010 14:49:52 +0200, "Peter Kolbe"
> > <pe...(a)fhc.org.za>wrote:
>
> >>Hi All,
> >>I decided to try my hand at restoring an 'antique' electronic item
>
> >>Down in Margate, South Africa, these seem to be very hard to track down..
>
> >>I just picked up this valve set at a 2nd hand dealer, and wondered if
> >>anybody had more info on it for me, before I even try to plug it in
> >>(series
> >>lightbulb of course),
>
> >>here is the URL to the pictures
> >>http://kolbep.webng.com/kolbep/album/Valve%20Radio/?id=25732
>
> > rec.antiques.radio+phono.
>
> > Your radio was likely made around 1948. Pye was "absorbed" into
> > Philips for lack of a better word. Personally I wouldn't have much
> > trouble working on a set like that with little technical info. Tubes
> > need certain voltages to operate no matter what they are in. Might
> > take me ten times as long to repair but eventually I would track down
> > the trouble spots and being partial to vintage tube gear I'm used to
> > breaking out the crystal ball for answerers.
>
> --- news://freenews.netfront.net/ - complaints: n...(a)netfront.net ---- Hide quoted text -
>
> - Show quoted text -

If the major power supply capacitors are shot, you will hear a loud
hum as soon as the tubes warm up. If the hum varies as you turn the
volume pot up and down, then the hum is likely coming from before the
audio amplifier stages. If you can't read the tube numbers from the
tubes because of dirt or being wiped clean, one useful trick is to put
the tubes in a refrigerator for a few hours, then bring back out into
the room temperature. As moisture condenses on the tube, you may be
able to read some further information. You can do the same equivalent
by just breathing on a room-temperature tube, like you would breath on
a mirror to see if you are alive or not<G>.
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