Dear all,
as most electric power nets at that time were direct current, tapping
the tram wires carrying 500 V DC had been a possibility to get higher
plate voltages for tube transmitters than the local mains voltage, often
just 110 V DC. Such stories are also around in Germany. There may also
have been designs using the tram wires for power and radiation!
73 Ha-Jo, DJ1ZB
"John Rabson" <[email protected]> schrieb:
> On 20 Dec 2011, at 14:21CET, g4gvw wrote:
>
> …
>
> > These techniques, I recall, could involve using [… ] DC power supplies
> > obtained
> > from his local town's street-lighting system.
>
> At one of the Belgian amateur radio conventions at Knokke (sometime in the
> 1960s) I met ST2AR (I think that was his call sign). He told me that before
> the war he managed the tramway system for Cairo and used its overhead supply
> to power his transmitter. It was alleged that when he put the key down the
> trams all slowed down.
>
> John F5VLF/G3PAI/ex ON5YB/ex ON8IU
>
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