RELAYS, DPDT, 12 Volt No. C1 ZA/CAN 4651
This important little relay was missed in both wartime editions of the Master parts List for the Wireless Set No. 52, but was finally picked up in the postwar 1948 edition.
It shares the rectangular mounting plate for the Connectors, 7-Pin PL1A on the upper left rear corner of the receiver chassis. It is mounted on the inside face of the plate in question.
The importance of this relay is that it disconnects the receiver from the aerial circuits whenever the set goes into either Send or Break-In Mode to protect the receiver. It's circuit reference number is 'S5A'.
I am not certain who the manufacturer was, as the first word of the name is a little hard to read, but their part number shows up quite nicely, below the name.
David
|