Two more Ekco Battery Eliminators
Identically cased battery eliminators
made by Ekco but with different specifications, and completely
different mechanical interior layouts,
The one on the left, not marked
with a model number, is a basic unit for a single HT voltage
and may be a "Model 1". It has a small ebonite panel
carrying two sockets marked, "+" and "-"
and the serial number174598 engraved on the underside together
with the maker's initials "RH" and the code "Tns
1/1/1". There is a wander plug, switchable between "H"
and "L" to adjust the output voltage. A label indicates
that it is designed for 230 volts A.C. MAINS 40/100 Cycles. The
rectifier is mounted longitudinally in the case and is a 6 inch
assembly of un-finned copper oxide disks.
The one on the right is the
Model 3 F20 and has a "NEG" socket and three HT sockets
marked, "S.G", "60" and 120/150". Underneath
is an A.C. Mains selector for 200/210, 220/230 and 240/250, 40/100
cycles. This model uses a finned Westnghouse rectifier about4
inches long mounted transversely in the case. The "F20"
indicates an HT current rating of 20mA.