JACKS, Telephone No. C1 ZA/CAN 4323
This JACKS assembly is oriented vertically in the lower right front corner of the receiver, with Circuit References J2A and J2B.
I have left the SWITCHES, Toggle, DPDT No. C3 (ZA/CAN 4669), circuit reference S4A, still attached for future reference.
The first photo shows the two components more or less oriented as they are on the chassis. Approximately three inches of the lower chassis plate are bent down to form the lowermost front wall of the receiver chassis. The Switches along this three-inch strip all mount directly to the chassis and the lower front receiver panel has large enough cutouts to drop down over the mounted stitches.
The JACKS, Telephone, on the other hand gets installed along with the switches, but is not mounted until the lower receiver panel is in place. External tooth lock washers sit between the front face of the JACKS assembly and the back of the lower receiver chassis plate.
The second photo shows the side of the JACKS that faces to the interior of the chassis: towards its SWITCHES S4A located immediately to the left of the JACKS. The body of the JACKS is cast Bakelite and two slots on the inner face hold the two spring metal contact strips that secure the Phone Plugs when inserted into the JACKS. The retaining hardware for these two springs also serves as the mounting points of the electrical leads to the JACKS.
The last photo shows the side of the JACKS facing to the outside right of the chassis where the mounting hardware for the two contact strips is secured with an internal tooth lock washer and a pair of hex nuts each fitting.
David
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