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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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Old 22nd May 2019, 3:31 pm   #1
Gridiron
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Default Power supply for R1155 in ground station role.

What power supply would be have been used by the RAF to power a R1155 by itself when used as part of a ground station?
I have a copy of a photograph showing a WAAF speaking into a microphone with a TR9 and a R1155 on the desk in front of her which I can't show here because of possible copyright restrictions.
Mike.
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Old 22nd May 2019, 3:47 pm   #2
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Default Re: Power supply for R1155 in ground station role.

If your image is available on the web I'm sure there is no objection to posting it, or a link to it

This thread doesn't answer your question but it has a wealth of information for anyone making or working on a PSU for the 1155
https://www.vintage-radio.net/forum/...2000&page=3%22
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Old 22nd May 2019, 4:16 pm   #3
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Default Re: Power supply for R1155 in ground station role.

Link not working on Firefox or Chrome Win 10 and Win 7 both no go.

Link fixed
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Old 22nd May 2019, 4:22 pm   #4
M0FYA Andy
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Default Re: Power supply for R1155 in ground station role.

These are the only ground power units I am aware of dating from when the T1154/R1155 was in use, so I imagine they were used. Overkill for a single receiver.

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Old 22nd May 2019, 4:43 pm   #5
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Default Re: Power supply for R1155 in ground station role.

Quote:
Originally Posted by Julesomega View Post
If your image is available on the web I'm sure there is no objection to posting it, or a link to it

This thread doesn't answer your question but it has a wealth of information for anyone making or working on a PSU for the 1155
R1155 Power supply question

The link was malformed, I've repaired it.
https://www.vintage-radio.net/forum/...=152000&page=3
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Old 22nd May 2019, 6:11 pm   #6
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Default Re: Power supply for R1155 in ground station role.

There was an earlier PU type 46 which just did the low HT and the LT supplies.
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Old 22nd May 2019, 7:09 pm   #7
M0FYA Andy
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Default Re: Power supply for R1155 in ground station role.

Do you have any information on the Power Unit Type 46? I can only find a reference linking it to the R.3020, whatever that is.

Andy
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Old 22nd May 2019, 7:32 pm   #8
Gridiron
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Default Re: Power supply for R1155 in ground station role.

The photo is not on the internet, it is a low resolution image I saved some years ago with a forum prohibited watermark.

Could a power supply type 3 as used with the R1132 be a contender.
Mike.
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Old 22nd May 2019, 7:43 pm   #9
M0FYA Andy
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Default Re: Power supply for R1155 in ground station role.

I don't see why not, as long as HT- is isolated from chassis, I haven't checked, but with that proviso the R1155 doesn't need anything special.
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Old 22nd May 2019, 8:00 pm   #10
Gridiron
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Default Re: Power supply for R1155 in ground station role.

Checking the circuit diagram, HT- is isolated from the chassis.
Mike.
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Old 22nd May 2019, 8:30 pm   #11
Ed_Dinning
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Default Re: Power supply for R1155 in ground station role.

Hi Mike, quite a few circuits from WW and Radcom about. These were often stabilised, which benefited the 1155 stability no end (Rx PSU only).
The units for the 1154 can be leathal.
PM me if you need circuits or details as I've buily several of this type of PSU for friends.

Ed
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Old 23rd May 2019, 8:30 am   #12
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Default Re: Power supply for R1155 in ground station role.

While we know there are myriad of circuits for R1155 PSUs, and various possible original units that could have been pressed into service, the OPs question is an interesting one. Its actually rather hard to establish exactly what was done when the equipment was in original service, because very little descriptive material was ever written down, or even simple instructions setting out "how to do it" at the time. And those who were there are now nearly all dead - or their memories (if you can still find them) will be very unreliable.

A similar question is "Given this specific equipment existed, what was it used for?" This can be just as difficult to answer. An example would be the ground based versions of the GEE airborne equipment. The obvious answer is as training systems for navigators who would go on to use the kit in the air. The less obvious answer is as part of a system where ground operators received the information (via radio) that the plane was actually receiving on its airborne GEE kit, and that allowed someone on the ground to work out where the plane actually was. Without passing any voice/CW messages to give that location away. Clever, eh?

Richard
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