I knew a guy who wanted me to fix up an old S-40 for him to prepare for such
a day. I asked him how he was going to run it. He said a vibrator inverter
would convert a storage battery to 120 volts. I asked him how he was going
to charge the storage battery. He said solar panels. I then mentioned that
since solar panels were semiconductor junctions, they would all fail when
the radios failed.

I think the hand crank would be the option. But, you can only crank so long
until you tire out. The military hand crank systems are so tiring to
operate that someone has to be shooting at the cranker before he cranks.

73, Colin K7FM

Should work fine. A better solution is a steam engine that runs on any
fuel, including grain alcohol. If there is no one on the radio, you can
drink the stuff.

Colin K7FM

On Aug 6, 4:00*pm, (Edmund H. Ramm) wrote:
In "COLIN LAMB" writes:

[...]
I think the hand crank would be the option.
[...]

* *What about a governor-controlled Diesel engine driving an ac generator?

* *73, Eddi ._._.
--
* * * e-mail: dk3uz AT arrl DOT net *| *AMPRNET:
* * * If replying to a Usenet article, please use above e-mail address.
* * * * * * * *Linux/m68k, the best U**x ever to hit an Atari!

The fuel coming from?

I think Colin has the idea! Use one of the WWII British steam radios
that were used in the south-west Pacific. They were 'powered' by the
camp fire.

Am I correct in thinking that the sets intended to be 'crank powered'
used mostly direct heated [battery] tubes and those fast heating
direct power tubes that looked like a metal 6L6? One would think that
the design would minimize the waste power, simply because of the
limited output of the [human] power source.

Neil S.

Edmund H. Ramm wrote:
The fuel coming from?

From the oil tank (central heating) in my cellar. Several thousand
liters to burn, more than I'll be able to use before radiation poisoning
will get the better of me. snip

Hi,

The thing about an EMP device is that it is meant to be detonated
at a very high altitude, so there is no radiation poisoning
on the ground. Since the device doesn't directly cause loss
of human life, the attacked country has a quandry
whether or not to launch a "mutual assured destruction" response.

A lot of the large power plant a.c. generators would be knocked out,
because they use "brushless exciters" for the rotor.
The rotor is excited by a small separately controlled a.c. field,
and uses large semiconductor diodes
that spin along with it, to create the needed d.c. within the rotor
windings.

73,
Ed Knobloch