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This Collins R-392/URR Amphenol "UW 1220FB23" original power connector, is New old stock.
This hard to find power connector, is used with the R-392 / URR (J-103)
This (9) connector plug is also used with other Military Receivers as well.
These connectors are new old stock. They may have some marks or small scratches from handeling over the years.
The orientation of the locator notch can be clocked if the body of the connector
is in the way of anything.
I have some green rubber grommets that can be stacked and inserted to narrow the hole for the cable which is designed for larger military cable.They are not part of this assembly but I will include them as long as they last.
They can be inserted and a little soapy water will help to insert them past the rubber compression ring. The smallest grommet needs to go in with the flange towards the connector as pictured.
I found it easier to slide the nut on after you stack them, lube the outer grommet, and insert past the rubber compression ring.
Pin Signal Description:
(A) 28 V B+ (Positive voltage) This powers the tube plates. The current requirement is 0.5 A.
(B) Break-in relay control This signal is provided by the transmitter to engage relays in the receiver to disable the audio output and antenna input when transmitting. This signal is ignored when the receiver Function switch is in the NET position to allow simultaneous use of the transmitter and receiver.
(C) Microphone Provided to the transmitter from pin C on the AUDIO connectors.
(D) 28 V Filament (Positive voltage) This supplies the tube filaments and draws approximately 2.5 A.
(E) Ground
(F) Push to talk switch on microphone or Key Passed to the transmitter from pin F on the AUDIO connectors.
(H) AF output This is the 600 ohm audio output from the receiver and is common with pins A and L on the AUDIO connectors.
(J) No connection
(K) Carrier relay control This signal is also available at pin K on the AUDIO connector and is grounded by the receiver when the audio output is not squelched.
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