RE: Howzat work then?

[Kevin Hawkins <tivo@xxxxxxx>]

Title: RE: [ukha_d] Howzat work then?

Paul - Doogie B might have some spare ;) Not sure if you'll get a mains lead through though !

        Kevin

> Paul,
>
> I will try and remember t  end you a ferrite ring t  wrap the power
> cord
> round.
>
> Keith
>
> -----Original Message-----
> From: Paul Gordon [mailto:paul_gordon@xxxxxxx]
> Sent: 02 July 2001 09:58
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] Howzat work then?
>
>
> I think that's the answer - I just did some testing with various other
> PSU's
> I had lying around, - one from a one-for-all IR repeater = same
> result, one
> from an old Sony Discman, = well it sort of worked! - the audio
> transmits,
> but it is of a drastically lower quality than when running off the
> battery.
>
> Does this mean the problem is due to poor quality rectification of the
> AC
> sinewave to DC? - could the el-cheapo wallwarts be doing half-wave
> rectification only? If that's the answer, then presumably my Sony
> Discman
> PSU must have been doing full-wave rectification, as the circuit works
> when
> using this one, but it's a bit worrying that the audio quality was s
> poor,
> - is this likely to occur with a "decent" PSU as well? - I'd
> hate to go out
> & spend £20 on a decent regulated PSU only t  have the same
> problem!
>
> Paul G.
>
>
>
> >From: Mike Griffiths <mike@xxxxxxx>
> >Reply-To: ukha_d@xxxxxxx
> >To: "'ukha_d@xxxxxxx'"
> <ukha_d@xxxxxxx>
> >Subject: RE: [ukha_d] Howzat work then?
> >Date: Mon, 2 Jul 2001 09:43:28 +0100
> >
> >I think Keith has the answer then as it does say Regulated PSU
> under
> >circuit
> >testing :-(
> >I must admit I would have pugged up a wallwart too
> >
> >Mike
> >
> >Sent from Home
> >
> >-----Original Message-----
> >From: Paul Gordon [mailto:paul_gordon@xxxxxxx]
> >Sent: Mon 02 Jul 01 09:38
> >To: ukha_d@xxxxxxx
> >Subject: RE: [ukha_d] Howzat work then?
> >
> > >Paul
> > >Does the  wall-wart work anything else?
> >
> >Tests OK with the spare bulb from my Maglite.... (in fact I've got
> a blind
> >spot right in the middle of my vision 'cos it was s
> bright!!!)
> >
> > >What happens if you run it at 9v?
> > >
> >
> >The same, - the LED on the PCB comes on as it should, so the
> circuit has
> >power t  it, but ****-all is being transmitted...
> >
> >Paul G.
> >
> >_________________________________________________________________________
> >Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
> ><http://www.hotmail.com.>
> >
> >
> >
> >
> >____________________________________
> >Automated Home UK
> >http://www.automatedhome.co.uk <http://www.automatedhome.co.uk>
> >____________________________________
> >
> >Your use of Yahoo! Groups is
> subject t  the Yahoo!
> ><http://docs.yahoo.com/info/terms/>  Terms of
> Service.
>
> _________________________________________________________________________
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
>
>
>
>
> ____________________________________
> Automated Home UK
> http://www.automatedhome.co.uk
> ____________________________________
>
> Your use of Yahoo! Groups is subject t  http://docs.yahoo.com/info/terms/
>
>
>
>
>
>
> ____________________________________
> Automated Home UK
> http://www.automatedhome.co.uk
> ____________________________________
>
> Your use of Yahoo! Groups is subject t  the Yahoo! Terms of
> Service.

--

____________________________________
Automated Home UK
http://www.automatedhome.co.uk
____________________________________

Your use of Yahoo! Groups is subject t  the Yahoo! Terms of Service.