On Sun, 4 Jan 2009 13:35:57 -0000, "N_Cook" wrote:

Mallory G650

The only reference I found was a google cached page which include this info on a
PSU:-

"The Power Supply Unit is running from a 6 V car battery using a Vibrator or
from the mains at 110, 150 or 220 Vca 50 Hz.
The Vibrator is of the "nonsycronous" 4 pins type (B MKII or Mallory 650)
The mains voltage value can be changed by a switching system on the front.
A valve 6X5G is used like rectifier.
When the set is to be used on the mains, the vibrator must be removed to prevent
burning up. "



--
Geo