11 Set stuff

[cletrac (RIP)]

I've been slowly gathering up some 11 set stuff. So far I have a power supply and a Remote set A,
I just got a mike and headphones off ebay plus the wires to the power supply.
I have yet to find the radio unit itself plus a bunch of the connector wires and an areial.
Would anybody out there have any of this stuff they'd part with?
I have plenty of 19 set stuff I could trade.
I want to get enough to equip my C8 signals truck. I was going to use a 19 set but that sucks!

[cletrac (RIP)]

What number is the case spare valves for the 11 set? I've seen a few cases with a number but no reference to which set they're for.

[Bruce MacMillan]

Spare valve case is ZA8580 and spare parts case is ZA0943.

I had two 11 sets but both sold before I moved. They are hard to find.

The 11 set was taken out of service in 1941 with the 19 & 22 sets replacing it. Anything later than that wouldn't be period correct.

I'm surprised there aren't as many around as Canada shipped several hundred from UK back to Canada for training purposes.

[cletrac (RIP)]

Here's the only interior shot I've come across of the C8 wireless.

[Mike K]

There is a 11 set on ebay right now ..here in Aust. the asking price is exhorbitant to say the least .

I owned 6 of them at one time, the Aust AWA low quality sets . Ive sent 2 to the Uk and have one left here . Id never sell my 1940 EK Colé British made version, it is super rare and its going into my PU Morris if I can live long enough . The remote units are fairly common here . The Power unit plugs are unique and somebody was looking into making some .

Ive seen a few Canadian 11 set power supplies on ebay , painted wrinkle green which is unusual .

this is my friends 11 set page http://members.dcsi.net.au/clem/vk3c...1set/index.htm

[cletrac (RIP)]

Mike, post a link to the ebay set so I can watch what it sells for. If you come across a remote for a reasonable price let me know. The C8 needs 2 of them and I alreadt have one. Got it off ebay for $35 a few years ago.

[Mike K]

here is the link

http://www.ebay.com.au/itm/Wireless-...item25869bcdba

The AWA version is fitted with the locally made tubes , these are different to the other versions

[cletrac (RIP)]

Quite a bit too high on the price tag! I see they had an offer on Dec 17 so it hasn't sold in 6 months. That should tell them something

[drcowie]

No, they are not easy to find ! What about this one - Aussi AWA ? $1500

[Ron Pier]

Cletrac is that definitely a C8 picture? It looks a lot like a PU. Although not a lot to go on. So far I've only ever seen two British 11 sets. One of which is in the signals museum at Blandford Camp.
My own in my PU8/4 is Australian, (thanks Mike). Ron

[Ron Pier]

I visited the signals museum at Blandford Camp in Dorset today. Took quite a few pictures of the motorcycles on display and also the British 11 set. Ron

[Euan McDonald]

Originally Posted by cletrac

Quite a bit too high on the price tag! I see they had an offer on Dec 17 so it hasn't sold in 6 months. That should tell them something

The offers was from me and I also called in and had a look. I did make another offer in person but was waiting for the boss to get back to me.
at that price I think it could sit for a while.

[cletrac (RIP)]

Ron, that interior shot is definitely a C8. My body and hoops are identical. It's pretty much the same as the PU.
That 11 set is still on Aussy ebay for $1500. You'd think he'd catch on that it's a bit too much.

[Ron Pier]

Thanks for confirming the C8 David.

The Australian set that you have on Ebay equates to a little over £800. The only other British set that I've seen, was sold at the W&P show something like 12-15 years ago for £1000.

Obviously the British sets are much more rare. How rare are the Ozz sets becoming?

Ron

[Mike K]

Originally Posted by Ron Pier

Thanks for confirming the C8 David.

The Australian set that you have on Ebay equates to a little over £800. The only other British set that I've seen, was sold at the W&P show something like 12-15 years ago for £1000.

Obviously the British sets are much more rare. How rare are the Ozz sets becoming?

Ron

Hi Ron

Id say there are still quite a few Aust. 11 sets hiding in sheds barns and old garages .

The immediate post war radio magazines here, have adverts from surplus stores , selling lots of radio stuff , including 11 sets . The army here got rid of the 11 sets very fast at wars end , the sets performed poorly . A small number of the UK built sets have turned up here , I have one and Ive seen another one at a hamfest , these may have been sent out as examples for AWA to copy ?

[Ron Pier]

Thanks Mike. Lucky that a lot of rare stuff turns up more readily in Australia and Canada. Usually found in some remote area of bush. We do have some remote areas, but probably never more than a few miles from civilisation.
Ron

[cletrac (RIP)]

I got a set of the repro plugs from Kevin and also got these two accessories. The pouch is to hold a voltage meter. The mike came off ebay. I still need the transceiver and various accessories.

[cletrac (RIP)]

I bought this voltage meter off ebay but I'm not sure if it's the one that was used with the 11 set. I also got a grungy microphone NO 3 for $10 to get the plug for a headset I have.
When did they use the muffs on the 11 set headphones? I have 2 pics with them being used and lots of pics without them.

[Ron Pier]

Although I like collecting/owning this stuff, I'm completely vague about how it works. Would the volt meter be part of a separate requirement/tool kit?

My Australian version came with this 'Thermocouple' gauge, showing amps.

Ron

[Bruce MacMillan]

Regarding David's voltmeter:

These were very common in the 1920-30's. Every repairman carried one. Many farmers had battery powered sets so it was usefull to test the A & B batteries.

The one that was issued with the 11 set is "voltmeter, pocket, 250V #2"

Useful for 1st echelon work and checking both LT & HT batteries. Besides the two power supplies available the 11 set also came configured for battery operation with four 60V batteries providing a 240V supply.

Regarding Ron's ammeter:

This ammeter measures radio frequency current going to the aerial. It doesn't measure battery current. There were two issued depending upon the power supply used. The LP supply had "ammeter #1 350mA" and the HP supply had "ammeter #3 1A". Very useful when tuning the transmitter.

[Mike K]

This is the Aust. 11 set test meter with its probe . You press the probe against the test panel on the front of the set .

I think TP means tropic proofed - a feeble attempt at moisture proofing , usually shellac was painted inside

[Mike K]

Originally Posted by Ron Pier

Although I like collecting/owning this stuff, I'm completely vague about how it works. Would the volt meter be part of a separate requirement/tool kit?

My Australian version came with this 'Thermocouple' gauge, showing amps.

Ron

Hi Ron

yes the voltmeter is a separate item . The set itself has a small test panel on the front , you can measure the plate voltages of the valves , without pulling the set from its case , a neat idea

The meter in your pic is a RF thermo ammeter , it measures the radio frequency current , flowing within the antenna circuit - it can give you false readings as it measures both forward and reflected current and adds them together . Mike

[Mike K]

I came across this lead with its brass tag

connectors leads ZAA 4139

I think its a 11 set part . The ZAA refers to it being of Aust. pattern

Maybe its part of the remote unit ?

[Ron Pier]

Thanks Chaps I knew you'd give chapter and verse. Trouble is my wireless supplier didn't sell me one of those tropic proofed volt meters, so I could be in trouble in the jungle Ron

[cletrac (RIP)]

The one I got says RADIO VOLTMETER on the face and the seller said it was British military. It has 6v and 120v readouts depending on which grounding post you use.
Mike, would that connecter go from the remote to the 11 set?

[Mike K]

Originally Posted by cletrac

Mike, would that connecter go from the remote to the 11 set?

Possibly - the Aust. 11 set manual will list the leads and the ZAA numbers . I do have the long remote unit leads , these are wound on cable drums somewhat like signal cable . I will have a look and take some pics .

[Ron Pier]

Talking of gauges reminded me that I bought this one years ago because it was calling at me. Any ideas what it is guys. Ron

[Mike K]

Originally Posted by Ron Pier

Talking of gauges reminded me that I bought this one years ago because it was calling at me. Any ideas what it is guys. Ron

Ron

Not sure , but the pins on it must have fitted into a panel socket The 11 set panel meter has similar pins .

[Chris Suslowicz]

Originally Posted by Mike Kelly

Ron

Not sure , but the pins on it must have fitted into a panel socket The 11 set panel meter has similar pins .

They made a lot of socketed meters, in a few sizes. (I have voltage, Direct Current, RF current (both hot-wire and thermocouple varieties existed) and an AC voltmeter marked 400 c/s (presumably for aircraft use).

That meter pictured is Naval, from the A.P. (Admiralty Pattern) part number. It's also extremely sensitive, and probably out of test equipment rather than a radio set.

[Chris Suslowicz]

Originally Posted by cletrac

I bought this voltage meter off ebay but I'm not sure if it's the one that was used with the 11 set. I also got a grungy microphone NO 3 for $10 to get the plug for a headset I have.
When did they use the muffs on the 11 set headphones? I have 2 pics with them being used and lots of pics without them.

Hmmm... that's a somewhat modified civilian voltmeter, and definitely not part of any military set.

Note that the microphone and headset plugs are different, and it is for a reason. The microphone plug is No.10 and has a straight barrel. The headphone plug is No.9 and has a wide "step" at the base.

The reason for the "step" is that originally all microphones had carbon granule inserts and required a 3 volt supply to operate. This was supplied by dry cells. If you plugged the headset into the microphone socket, this would discharge the battery fairly quickly (in addition to the set not working at all well). The step prevents the headphone plug from being inserted far enough into a microphone socket to make contact with both of the contacts, thus avoiding the problem.

As to the "muffs", British headsets tended to use plain Bakelite earpieces, the American ones for the WS19 had circular felt or velvet over sponge rubber muffs, and the Canadians excelled themselves with chamois leather covered sponge (oval) muffs that went around the ear instead of pressing on it, making them supremely comfortable and also excluding background noise - ideal for long periods of use.

Chris.

(There's also a 3-contact version of the No.10 plug, used with Microphone, Hand, No.7 with the ZC1 transceiver - the third contact is needed for transmit/receive switching.)