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Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment. |
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23rd Jan 2023, 11:28 am | #1 |
Triode
Join Date: Feb 2013
Location: The Hague, Netherlands.
Posts: 14
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Plessey PV.14E Aerial amp
Hello,
I've obtained lately a Plessey antenna splitter/amplifier ( I think)..... Model PV.14E Aerial amplifier. However no documentation to be found and the valves are missing. Anyone out there who is familiar with this unit? Thanks for any reaction. 73 Bart |
25th Jan 2023, 12:53 pm | #2 |
Heptode
Join Date: May 2017
Location: Konongo, Ghana
Posts: 510
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Re: PLessey PV.14E amplifier
You could try contacting the people of the 3 Telecommunications Unit (3TU) since they seem to have used a lot of these aerial amplifiers:
https://www.asd.gov.au/sites/default...-splitters.pdf https://www.asd.gov.au/about/history...ation-unit-3tu https://web.facebook.com/people/3-Te...0807/?sk=about
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26th Jan 2023, 12:34 pm | #3 |
Nonode
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,013
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Re: Plessey PV.14E Aerial amp
Hello Bart. I was hoping someone would have some answers for you about this.
It's not looking too promising.. so far. Have you been inside for any further pictures? I was hoping to guess the frequency range. I can't read anything useful from the ID plate. Curious to know more. |
26th Jan 2023, 5:02 pm | #4 |
Moderator
Join Date: Dec 2010
Location: Exeter, Devon and Poole, Dorset UK.
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Re: Plessey PV.14E Aerial amp
Any chance of a nice clear image of the label?
Cheers Mike T
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26th Jan 2023, 5:27 pm | #5 |
Dekatron
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 13,953
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Re: Plessey PV.14E Aerial amp
The style of the label and the antenna sockets both look distinctly 'military'.
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26th Jan 2023, 6:51 pm | #6 |
Nonode
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,013
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Re: Plessey PV.14E Aerial amp
Back when I was an SWL I'm pretty sure I was given some cables having suitable co-axial male connectors fitted on the ends. I forget now what they were. Not Pye plugs...
They resembled a scaled up version of a car radio plug, with a protruding centre pin. About 1/2" across but the outer spring ring was replaced by a shoulder and knurled lock ring for the ground connection. They might have been a Plessey invention I suppose. I don't think I have seen them on anything else and they are long gone now. |
26th Jan 2023, 10:05 pm | #7 |
Nonode
Join Date: Jan 2009
Location: Papamoa Beach, Bay of Plenty, New Zealand
Posts: 2,943
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Re: Plessey PV.14E Aerial amp
The Plessey PV14 was mentioned briefly in WW 1951 November.
WW 195111 p.449 Plessey PV14 Multicoupler.pdf It was an HF (2 to 25 MHz) aerial multicoupler with 10 outputs. It used EF91 and ECC91 valves. The PV14B had an even briefer mention in WW 1954 October. WW 195410 p.472 Plessey PV14B Multicoupler.pdf This suggests, but does not confirm, that the suffix letters applied to successive iterations rather contemporaneous variants. An advertisement in WW 1962 April suggests that aerial multicouplers were a significant product type for Plessey at the time. WW 196204 p.80 Plessey Aerial Exchange.pdf Cheers, |
26th Jan 2023, 10:23 pm | #8 |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
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Re: Plessey PV.14E Aerial amp
OK, it's an HF multicoupler, thanks. Looks like 2x5-way.
An antenna distribution amp for a shortwave listening station. Moving to amateur/military section. David
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31st Jan 2023, 11:32 pm | #9 |
Nonode
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,013
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Re: Plessey PV.14E Aerial amp
I wonder why Bart didn't come back? I would still like to know what those connectors were. Does anyone know?
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1st Feb 2023, 10:16 am | #10 |
Pentode
Join Date: Sep 2007
Location: Fareham, Hampshire, UK.
Posts: 103
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Re: Plessey PV.14E Aerial amp
There are 3 of them at the back of the Murphy B40 series receivers used by the RN. The chassis socket is listed as "Admiralty Pattern 60451" in the manual. The prototype B40 from 1945 has one of these connectors on the back panel, so they must date back at least that far.
Some of the plugs I have are marked "F&E LTD" I believe for "Film and Equipment" so I have always known them as Film and Equipment connectors. In Radio Bygones magazine, issue 103 (October 2006), Michael O'Beirne also calls them F&E connectors. I don't know if this is the manufacturers name for them. (Removes deerstalker hat.) |
1st Feb 2023, 11:55 am | #11 |
Nonode
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,013
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Re: Plessey PV.14E Aerial amp
Well done Andrew! Yes F&E does jog a memory now. Thanks!
Marvellous this forum. |
2nd Feb 2023, 5:52 pm | #12 |
Triode
Join Date: Feb 2013
Location: The Hague, Netherlands.
Posts: 14
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Re: Plessey PV.14E Aerial amp
Thank you everyone for your reply. Sorry not having answered earlier, but the older I get the busier I am....
Added some more pictures. I will change the coax connectors to 75 ohms BNC, as I have only a very limited number of the original male connectors ( btw same as on back of B40) |
2nd Feb 2023, 6:20 pm | #13 |
Triode
Join Date: Feb 2013
Location: The Hague, Netherlands.
Posts: 14
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Re: Plessey PV.14E Aerial amp
Just noticed that sharp pictures lose some quality when uploaded. Herewith the data plate. The female connectors are marked Cannon.
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6th Feb 2023, 1:05 pm | #14 |
Tetrode
Join Date: Apr 2021
Location: North Surrey, UK.
Posts: 65
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Re: Plessey PV.14E Aerial amp
The co-ax connectors described and used on the B40 series receivers are Jones plugs (not to be confused with the flat-pinned multiway connectors used on T1154/R1155 etc).
Jones was a US firm, Films & Equipment Ltd was one of the UK licenced manufacturers of their products. They were also made by Cannon. |
6th Feb 2023, 1:23 pm | #15 |
Tetrode
Join Date: Apr 2021
Location: North Surrey, UK.
Posts: 65
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Re: Plessey PV.14E Aerial amp
Added page clip from a Cannon catalogue.
Last edited by 2000 type; 6th Feb 2023 at 1:33 pm. Reason: Clarification |
6th Feb 2023, 11:02 pm | #16 |
Pentode
Join Date: Sep 2018
Location: Maldon, Essex, UK.
Posts: 225
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Re: Plessey PV.14E Aerial amp
Have a look at item (2) in my "offered" post of Aug. 8th. 2022 .
I've always known them as "Small F&Es" Laurie. |
20th Feb 2023, 1:53 pm | #17 |
Triode
Join Date: Feb 2013
Location: The Hague, Netherlands.
Posts: 14
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Re: Plessey PV.14E Aerial amp
They are rather discrete about frequency and impedance.......
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