Hi!

Yes; the T/O's run on AC power also; the balast tube is a
51-something-or-other; I'll look it up.  As I say, the radios do run on AC
but it's also nice to be able to use them as the portable radios they were
intended to be.

The battery pack uses 10 D-cells and has the plugs to be able to handle
all models of the T/O from the earliest (came out just prior to WW2) to
the latest B-600 (last made in 1962).  And yes, the little connector for
the dial-light is also there.  You can, suprisingly enough, get something
like 48 hours of near-continuous play on a set of alkalines.  I listened
to a whole summer's-worth of Maeriner games on one set a couple years ago.

The pack uses a switched power supply but the unit is so well-shielded and
the inverter runs at a suficiently high frequency that you can't hear it
and there's no RF hash; it's as if you still had an original pack.  I
believe the unit sells for $80 or so.  it's made by Jim Poitivient and he
can be reached at

[log in to unmask]

He's a really nice guy!

Mike Freeman <[log in to unmask]>
Amateur Radio: < K 7 U I J >
... "Cowardice is the best protection against temptation." -- mark Twain

On Mon, 22 Jul 2002, Butch Bussen wrote:

> Tell me more about this battery pack.  I've got a couple of these old tube
> ones, but they run on ac as well, unless their wierd ballon tube is out.
> I forget the number, but it is sort of a limiting or series regulater tube
> used on ac.  Is a filament only as I recall.  Anyway, be interested on the
> battery pack info.
> 73s
> Butch Bussen
> wa0vjr
>