Message-ID: <000901c38a48$e129d780$0fdce150@hughspc>
From: "Hugh" <m0wye@thersgb.net>
To: rsgb_lf_group@blacksheep.org
References: <001b01c38a40$f498cae0$2ba2edc2@ekholm>
Date: Sat, 4 Oct 2003 08:25:10 +0100
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Subject: LF: Re: "RF"-chokes
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Good idea Urban,

But do be careful that the glass doesn't break while prising the plastic
base apart. You could get a bad cut, if holding the glass in one hand and
the screwdriver in the other. Also the tube contains mercury vapour so don't
breathe the gas if it does break (I don't know what the phosphor powder is
made of, but it's probably nasty too!)

I found that many of the components tend to leave their legs behind, in the
board, when you desolder them, on the Philips models I disassembled.

But there was a certain pleasure in dis-membering something that had been
causing me so much interferance on the Argo screen....

73
Hugh M0WYE


----- Original Message -----
From: Urban Ekholm <urban.ekholm@hem-pc.bip.net>
To: <rsgb_lf_group@blacksheep.org>
Sent: Saturday, October 04, 2003 7:30 AM
Subject: LF: "RF"-chokes


Hello everybody !

When experimenting on the LF-band chokes with inductances of some mH are
often needed. They are not so easy to get in these days. Those in the
junk-box from the tube era are often quite big.

Do you have low-energy lamps that are not working any more ? Before giving
them away to recycling do the following:

Carefully disassemble the electronic part with a screwdriver. Inside there
(among some other things) is a choke with an inductance of 1.8-17mH
(depending of the power and the make of the lamp). They chokes are very
small, approximately 12x12x15mm. I have measured the Q of some of them and
it was between 10 and 25.

Happy recycling !

SM5EUF / Urban