11 Set stuff

[cletrac (RIP)]

Here's the aerial unit C picture out of the manual and the instructions are black on a white background the same as the charging switchboard picture.
Next is the instructions on Kevin's spare Unit C box and they're silver (aluminum?) writing on a black background.
This makes me wonder if the switchboard would be like this also. Most instructions have the black background.

[Ron Pier]

Here is my coupling unit. Again with the etched ally instructions. Ron

[Mike K]

Originally Posted by Ron Pier

Here is my coupling unit. Again with the etched ally instructions. Ron

Ron your unit appears to have a 19 set Pye connector socket ? Is that normal for these units ? Mike

[cletrac (RIP)]

The Aussie unit is quite a bit different from the others. The Brit box looks to be closer to square. The Aussie one has two dials instead of one so likely needs some more space inside.

[Ron Pier]

Originally Posted by Mike Kelly

Ron your unit appears to have a 19 set Pye connector socket ? Is that normal for these units ? Mike

Well I don't Know Mike. I think the box came from you as an empty unit and I acquired the internals a year or so ago off ebay. I seem to remember that you gave me the heads up about the auction. I have noted that the others shown here have a meter. Is mine wrong? Ron

[Chris Suslowicz]

Originally Posted by Ron Pier

Well I don't Know Mike. I think the box came from you as an empty unit and I acquired the internals a year or so ago off ebay. I seem to remember that you gave me the heads up about the auction. I have noted that the others shown here have a meter. Is mine wrong? Ron

The Pye connector is rather later than the WS11, and on your coupling unit appears to be fitted to a metal plate that blanks off the meter position.

Looking at the schematic in the WS11 handbook (Signal Training Vol.III Pam 19), the LP button operates a normally closed shunt to the 350 mA RF ammeter. Looking at it further, it appears to be Ammeter HF 350 mA No.1 which is a fairly common "plug-in" type, so there would have been a large bakelite socket behind where the Pye connector now sits. Also there appears to be a protective cover for the meter, secured by four screws (the socket has three), so if you have a look behind the Pye connector and that's the arrangement, I have a spare socket and can probably find you the correct meter. (The protective cover you'll have to make yourself, a block of wood and some perspex sheet ought to do it.)

Chris.

[Ron Pier]

Thanks for that Chris. In the morning I will take that plate off and see what is there and what you can help me with to get it correct.

Cheers Ron

[Ron Pier]

Chris, this is what I have. Ron

[Chris Suslowicz]

Originally Posted by cletrac

Here's the aerial unit C picture out of the manual and the instructions are black on a white background the same as the charging switchboard picture.
Next is the instructions on Kevin's spare Unit C box and they're silver (aluminum?) writing on a black background.
This makes me wonder if the switchboard would be like this also. Most instructions have the black background.

Instruction plates will be engraved and sometimes plated brass or anodised aluminium.

The switchboards are black (or brown) plastic with engraved and white-filled lettering.

Chris.

[Mike K]

The British Aerial unit C box looks pretty much the same as the Aust. version. I do have a spare box here somewhere, I had it outside in the rain and it filled with water . I must find it and measure it .

The method of making the instruction plates does vary . I have seen printed sheets of paper covered with a clear plastic cover riveted over the paper . Etched brass is another method .

I have the complete C unit in front of me . The lid is 7.1" wide - 8.1" deep and 1 1/4" folded edge all around . The corners appear to be welded , then filed smooth

The box itself: 5.6" high 8.1" deep . The box sides are a single piece of steel folded into a square and joined with spot welds in the rear middle panel. The floor has turned up short sides and is spot welded to the main box sides .

The instruction sheet under the lid is a thin metal sheet with what looks like screen printing on it .