[Boatanchors] Repair of B&W Tank Circuit

Tue, 27 Apr 2004 10:16:53 -0400

Well, if I remember my  US Navy Electronics Technician "A" School  class
room theory at Great Lakes IL..........

Think of a resonant circuit with a capacitor and an inductor as a tank,
where the energy alternately flows from the full tank of the capacitor to
the empty tank of the inductor, and then back the other way. In a resonant
and lossless circuit, this free-wheeling oscillation can continue.

That's what I remember from over 50 years ago !

73  de Dave W1DWZ  ex  ET1

----- Original Message ----- 
From: "Duane Fischer, W8DBF " <[email protected]>
To: <[email protected]>; <[email protected]>
Sent: Monday, April 26, 2004 7:10 PM
Subject: Re: [Boatanchors] Repair of B&W Tank Circuit

> My grandson asked me how a 'tank circuit' got its name? No clue! Does
anyone out
> there know?
>
> Thanks.
>
> Duane W8DBF
>
>
> ----------
> From: Mike Clarson <[email protected]>
> To: [email protected]
> Subject: [Boatanchors] Repair of B&W Tank Circuit
> Date: Monday, April 26, 2004 6:22 PM
>
> Gentlemen: I have recently aquired a B&W LPA-1 "Widowmaker" linear
> amplifier. No interlocks, plenty of exposed HV under the easy to open
cover,
> and, just for fun, exposed 120 volt terminals on the back of the power
> supply. 4 866s powering 2 813s. The tank coil used to have plastic keeping
> it rigid, however, this palstic has turned to some grey shards of some
other
> flakey substance. It is one of the standard B&W tank circuits with the
> switch. Has anyone referbished one of these tanks and repaired the coil? I
> am open to suggestions before attempting trial and error repair
> mysef. --Mike, WV2ZOW
>
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> $$ For vintage radio info, see the HCI web site $$
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>