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RE: Howzat work then?


  • To: ukha_d <ukha_d@xxxxxxx>
  • Subject: RE: Howzat work then?
  • From: Keith Doxey <ukha@xxxxxxx>
  • Date: Mon, 2 Jul 2001 09:25:27 +0100
  • Delivered-to: rich@xxxxxxx
  • Delivered-to: mailing list ukha_d@xxxxxxx
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

Its an UNREGULATED power supply.

The Transmitter might have onboard regulation as it says 9-16V but if not
the varying output of the PSU will reek havok with the stability. It might
also be that the power feed is picking up the RF and upsetting itself. Try
a
ferite ring on the power lead.

You might need a REGULATED power supply.
How much current does the TX take ?

Keith

-----Original Message-----
From: Paul Gordon [mailto:paul_gordon@xxxxxxx]
Sent: 02 July 2001 09:15
To: ukha_d@xxxxxxx
Subject: [ukha_d] Howzat work then?


Probably one for Keith this....

I'm playing with this new veronica FM transmitter, which is working
perfectly off a PP3 9v battery, but when I replace the battery with the
wall-wart PSU I picked up at M***ins it doesn't, even thought he LED still
comes on....

How's that work then?

Paul G.

The PSU is M***ins part #XX09K, which is voltage adjustable between 3 -
12v,
and polarity reversable too, Power: 8.7w, Current 300mA 3.6VA (max). I've
got it set to 12V, and I know the polarity is the right way round...
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