Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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Doc -
The bulb is a sort of 'fuse' to protect the front end of the receiver.
It's not likely to blow, but does act as a resistance in series with the
input antenna coil in the presence of high level RF. I think of it more
as a current limiter just in case you pull up next to a ham with a KW in
the next car!
The early TR-3s didn't have it, so I can only assume that it was added
after some field experiences indicated it would be worth adding.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B & C-Line Service Supplement CDs
<www.k4oah.com>
Halo.net wrote:
"Halo.net" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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Garey,
What is the function of that #12 bulb over the relay.. impedance matching? one
of my TR-3 rigs doesn't have it and seems to work fine
Doc
WB6WAD/OA8AO
Halo.net Website: http://mysite.verizon.net/halo.net/
======= At 2007-12-12, 06:19:00 you wrote: =======
Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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You can buy them for about $10 on E*, or you can buy them for $1.50 at
Bulb Direct or one of the many on-line bulb sellers. Not likely to find
them locally, unless you have a real electronics distributor. Not
likely these days.!
Most of these places have a $5-6 shipping charge, so you might want to
get an order together, say a box of 755 bulbs to replace all those 47s!
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B & C-Line Service Supplement CDs
<www.k4oah.com>
Hunter Ellington wrote:
"Hunter Ellington" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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Where does one get the #12 bulb?
R. Hunter Ellington, Esq.
Shareholder
Gorrell Giles PC
1331 Seventeenth Street, Suite 1000
Denver, Colorado 80202
(303) 996-6585 Direct
(303) 996-2680 Fax
[EMAIL PROTECTED]
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Halo.net
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2007-12-12
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