Wild guess: to prevent plugging a 6.3v filament tube in a 12.6v socket?
Maybe 807's were also used in other applications in that era.
Remember the early 1625 "linear" amplifier designs requiring a hole to be
cut in the base to separate the beam and cathode leads? We are (were) a
resourceful bunch huh?
73,
Gerald K5GW
In a message dated 7/26/2007 9:22:48 A.M. Central Daylight Time,
g3rzp@g3rzp.wanadoo.co.uk writes:
Does anyone know why the 1625 got a different base to the 807? I read
somewhere it was developed for ARC for the Command transmitter, (just as the
12A6
was developed for the receiver) but there doesn't appear an inherent reason
why the base was changed.
73
Peter G3RZP
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
************************************** Get a sneak peek of the all-new AOL at
http://discover.aol.com/memed/aolcom30tour
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|