[ARC5] Replacing a gas VR with a zener (Was reduced B+ Report)
Leslie Smith
vk2bcu at operamail.com
Fri Sep 7 17:01:04 EDT 2012
Dear List-members,
If you wish, you may use an existing "tube" socket, already wired in the
chassis. (eg to replace a gas regulator with a zener regulator) may I
suggest the following abso-bloody-lutely brilliant and competetely
non-obvious gem of an idea:
(1) Mount the zener (or other component of interest) on strip-board cut
to a
size that is smaller in diameter than an octal plug. (You're going
to mount the strip-board
inside an octal tube-base. Bet no-one ever thought of this before!
Any takers at 50:1?)
(2) Take a "dead" octal "tube"/valve and place inside a paper bag.
(3) Place the bag (and "tube") in the jaws of a vyce and break the
glass.
You now have an octal plug. Or you can buy a new 8-pin octal plug
from a shop. Cheap.
(4) Mount the strip-board in the plug, noting the function of each pin
etc
(5) Insert the "thingy" you made in the radio tube socket. Stand back
and turn on the power.
(6) Watch the "thingy" destroy your lovely old radio because you wired
the "thingy" incorrectly.
(7) Blame me - it's all my fault.
73 de Les
AR K
--
Leslie Smith
vk2bcu at operamail.com
On Sat, Sep 8, 2012, at 02:15, Kenneth G. Gordon wrote:
> On 7 Sep 2012 at 11:11, David Stinson wrote:
>
> > IMHO, such "Borg Implants" are going to be the
> > salvation of many of our old sets.
>
> Absolutely!!!! As you so correctly point out, if these are properly done,
> the
> originality of the equipment is never distrubed either. No new holes,
> easily
> "reverted".
>
> Good on 'ya, David.
>
> Ken W7EKB
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