Envelope-to: dave@picks.force9.co.uk
Delivery-date: Wed, 10 Aug 2005 09:58:39 +0100
Message-ID: <8E8D23D235D70840B6582917DF2789800240CC@temps153538.tms-ltd.com>
From: Reeves Paul <Paul.Reeves@uk.thalesgroup.com>
To: "'rsgb_lf_group@blacksheep.org'" <rsgb_lf_group@blacksheep.org>
Date: Wed, 10 Aug 2005 09:57:29 +0100
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Subject: LF: RE: Re: Interesting E-Bay Item
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Hi Alan,

Going by the supplied info the unit is a rebadged ENI (Electronic Navigation
Industries, if I remember right)power amp. ENI made a wide range of pretty
'bombproof' linear power amps up into the low VHF range, at least. We still
use one of their 600W HF PAs here for testing tuners/antennas. It will drive
most things but is NOT proof against technicians connecting the input to
output (~55dB gain !). ENI dropped out of the wideband PA market a few years
ago so quite a bit of their stuff will probably appear now it is
'unsupported'. Should be a good buy - they are very well built and
conservatively rated (and it's a very probably a linear, not class-D or
whatever).

regards,

Paul     g8gja

-----Original Message-----
From: Alan Melia [mailto:Alan.Melia@btinternet.com]
Sent: 09 August 2005 22:22
To: rsgb_lf_group@blacksheep.org
Subject: LF: Re: Interesting E-Bay Item


Hi Chris I was about to say that these things are usually a push-pull self
excited oscillator...but this looks like a much more modern job. I didnt
realise plasma etching was done at so low a frequency..... the ashers we had
were on the 13MHz ICS band. 3kW 120v transformers are no problem they are
used on building sites for power tools. I think the firm's name on the front
looks like "Plasmatronics" (maybe ix instead of ics) and I think they have a
web site. These should be mildly bomb-proof as they are made to operate into
weird loads, by people who dont understand "matching" and it is tweak for
maximum smoke ....literally. That didnt stop some of our crowd trashing a
few valves.( yup ours were "real radio" with big bottles)
Well it would make a difference from Decca Nav PAs !!

Cheers de Alan G3NYK

----- Original Message -----
From: "OSBORN, Chris" <Chris.OSBORN@astrium.eads.net>
To: "LF Group (E-mail)" <rsgb_lf_group@blacksheep.org>
Sent: 09 August 2005 13:06
Subject: LF: Interesting E-Bay Item


There's an interesting item for sale on E-Bay which may be useful
for LF  . .

ENI PL3G LOW FREQUENCY RF GENERATOR

It says it's range is from 100 - 450 KHz and has an output of  0 -
3000 watts !!

Unfortunately it needs a 120 v ac input.

E Bay No. 7536278840

Auction ends in 2 days.           Bid so far  Ł1

Ivybridge  (Devon presumably)

73 Chris G3XIZ


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