Wireless of the Week - week 22

[Chris Suslowicz]

Originally Posted by David Dunlop

Chris.

In Bruce's first post on this thread, last photo, the image is the information plate inside the cover. The section dealing with the loudspeaker states the two terminals marked '19-Set' are connected to windings of 30 ohm value to match the output from the I/C amp in the 19-Set, if that helps at all.

David

It does.

The loudspeaker is obviously a rather heavier load than a couple of headsets, so needs to connect to the IC amplifier rather than one of the set outputs.

The Control Unit 190 is an odd beast with a single droplead for the wireless operator, so everybody else must be using the intercom - either via Junction Distribution boxes (No.3 or No.4 because the Mic+ line feeds into the IC amplifier so it can't be for the power microphone) or the loudspeaker (presumably once the gun is deployed).

Chris.

[Jesse Browning]

Does anyone have a 4 terminal Tannoy they would part with?

[JRRDixon]

What is the average price of the loudspeakers. Original paint complete. No strap. All lock hasps there. Original marking with stamp. Arrow with p beside it. Getting rid of a pair but don't want to rip anyone off.

Jason

[Jesse Browning]

Something like that should just be free..... Really though; someone who knows the market chime in so he knows what to charge me. Jesse.

[Perry Kitson]

Jesse,

Can I ask you where you got the wiring diagram plate for the radio compartment junction box? I have been looking for one for some time now.

thanks, Perry

[Jesse Browning]

Perry. There are two. One screwed to each side of the lid of the junction box in the radio compartment. The one, very detailed that I posted here; and the other that shows how the radio wiring is connected to the junction blocks inside the box ( also pictured on page 191 of the operators manual). Both came with the vehicle. Maybe the derilect Sextons in Huntsville still have them. They were, interestingly, 2056 and2057. Maybe the plates were deleted on later vehicles such as yours. They're really of no practical use, being mounted in the most difficult place to see that they are. Jesse.

[Perry Kitson]

Thanks Jesse. I have sent an email your way.

Perry