[ARC5] What the......?

[Jack Antonio]

On 3/14/2014 10:15 PM, J. Forster wrote:

> Does anyone have a link to the Type 12 Maint. Manual. I'm curious about
> the connector in the place where the ARC-5s have the frequency dial. I
> assume the other connectors are Power and Control Box.

This connector provides for B+ transfer when used with a transmitter.

In the type 12 sets, the receiver dynamotor also powers the 
transmitter(s).  B+ from the dynamotor goes to pin A, B+ returns
from the T-R relay in the transmitter(s)and goes to pin E.

B+ is removed from the entire receiver in transmit.

If the receiver is not used with an associated transmitter, there
is a jumper installed, plus a cap on the connector.

This connector also has LV, Tel, and Ground, but the system
wiring diagrams in the manual do not show that they are used.

Jack Antonio WA7DIA/w