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Old 14-08-16, 02:48
things_green's Avatar
things_green things_green is offline
Brent
 
Join Date: Oct 2006
Location: Wellington, New Zealand
Posts: 136
Default possibly for WS53?

Hopefully I have answered my own query?

The image is the Ant Coupling Unit from the top of a local (30 miles away) museums WS53.... I took the pic 8 years ago and have just made the connection ~doh~

I realise the one in the image is a single prong socket but I don't know if its original, it was installed by a fantastic group of keen amateurs. All silent now.
Still its only guesswork.

The WS 53s Working Instructions state;

"it also has a feeder plug for an 80 ohm feeder line to a dipole aerial."

I'll take the lead up to the museum ('m a member) and see if it fits.

if anyone has the equipment list from a WS53 equipped 3 tonner that may help?

cheers,
Brent
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Last edited by things_green; 14-08-16 at 02:50. Reason: doh, again
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Old 14-08-16, 21:24
Chris Suslowicz Chris Suslowicz is offline
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Join Date: May 2007
Location: England
Posts: 858
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That WS53 has been 'got at' by the look of things, and the output connector modified from a single-pin (coaxial) Niphan to something rather more recent.

The co-ax output from the WS53 used something very similar to the accumulator connectors (possibly 1 size smaller) and the WS19-style co-ax (Duradio No.1?) in (I think) 25-ft lengths with a Niphan connector on each end so they could be "daisy-chained". The dipole centre was bakelite or similar plastic, with a Niphan plug (male) and two nickel-plated brass bars with wing nut terminal to clamp the aerial wire.

Aerial wire was the standard "Wire, Electric, R4" issued in 41 yard packets for making up non-standard length dipoles, and ready made dipoles (9A, 9B and 9C) on the wooden board spools were issued with the set.

(41 yards is a deliberate length: it's a quarter wavelength at 2 MHz (with a bit left over for joints, etc.), so 2 packs will make you a dipole at the lowest frequency likely to be used. WS53 can go below 2MHz (1.6, I think) but it can cope with that much mismatch.)

I have most of one of the dipole centres, bought in a 'mixed lot' of radio bits on eBay - which included a No.69 offensive grenade! (Fortunately inert, unfortunately tatty. Hence the tagline...)

Chris.
--
You know they're out to get you when you find a grenade in your morning mail.
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