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Old 8th Oct 2012, 2:08 pm   #1
Des Miles
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Default Sargrove. Type A3 radio.

Hi from sunny South Africa. Have come across this bakelite radio which I believe was manufactured in the UK in the 1940's. Of interest is the fact that it was produced on a robotic assembly line and used 2 X UA-55 valves. I've never come across one of these before and wonder if they are fairly common and if anyone has restored one?
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Old 8th Oct 2012, 2:34 pm   #2
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Default Re: Sargrove. Type A3 radio.

I've never seen one of those, and they're certainly not common.

Googling 'sargrove' does find some interesting info though:

http://en.wikipedia.org/wiki/John_Sargrove
http://www.powerhousemuseum.com/coll...&images=&c=&s=
http://www.google.co.uk/url?sa=t&rct...0m8OZnl_xb5CQw
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Old 8th Oct 2012, 2:50 pm   #3
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Default Re: Sargrove. Type A3 radio.

Fascinating !
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Old 8th Oct 2012, 2:55 pm   #4
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Default Re: Sargrove. Type A3 radio.

The BVWS did a video disc on the manufacture of these a few years back.

The whole process was done by machines and metalisation and sprayed coils and resistors.

It is the DVD 5 issued in Winter 2008 and the film is called ECME

It was for export.

They are not common certainly not in the UK

The cases were also used for the Etronic Midgetronic, but that used conventional circuitry

What a fantastic find.

Cheers

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Old 8th Oct 2012, 3:11 pm   #5
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Default Re: Sargrove. Type A3 radio.

There's some info on the valves here:

http://frank.pocnet.net/sheetsU.html

scroll down for pdf of Wireless World report/advertorial?
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Old 8th Oct 2012, 4:41 pm   #6
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Default Re: Sargrove. Type A3 radio.

and another link...

http://blog.modernmechanix.com/robot...dios-a-minute/
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Old 8th Oct 2012, 5:01 pm   #7
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Default Re: Sargrove. Type A3 radio.

Absolutely fascinating.

British Pathe has the film or parts thereof

http://www.britishpathe.com/video/robot-radios

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Old 8th Oct 2012, 5:25 pm   #8
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Default Re: Sargrove. Type A3 radio.

Here is some info on the UA-55, the second part being in Dutch, which I do not understand!
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Old 8th Oct 2012, 5:50 pm   #9
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Default Re: Sargrove. Type A3 radio.

For interest here is a patent he filed in the USA in 1944 regarding the manufacturing process.
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Old 8th Oct 2012, 6:04 pm   #10
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Default Re: Sargrove. Type A3 radio.

Oh, blimey, get that thing working!
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Old 8th Oct 2012, 6:35 pm   #11
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Default Re: Sargrove. Type A3 radio.

Isn't he mentioned in Setmakers?
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Old 8th Oct 2012, 7:46 pm   #12
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Default Re: Sargrove. Type A3 radio.

Yes,
The 2 valve receiver was designed for India and China, but the Indian order was cancelled following partition. Apparently only a pilot run was made. John Sargrove was of Hungarian descent and was awarded the first Clerk Maxwell prize.
The equipment was bought by Cossor, but never used.
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Old 8th Oct 2012, 10:46 pm   #13
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Default Re: Sargrove. Type A3 radio.

Quote:
Originally Posted by PJC58-Hythe View Post
Here is some info on the UA-55, the second part being in dutch, which I do not understand!

There's an interesting snippet on Araldite, a new wonder adhesive, right at the end of the Dutch article.

You could try typing the Dutch into Google translate, or maybe one of the forum's Netherlands contributors is feeling obliging?
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Old 8th Oct 2012, 11:09 pm   #14
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Default Re: Sargrove. Type A3 radio.

Hi,

If you are now the owner of this "Fabulously Rare" Sargrove radio you are extremely privileged in deed !!!

This is seriously RARE.

I have been fortunate enought to handle the Sargrove and associated parts that were donated by the designer to the UK Science Museum.

The radio demonstrates a major development in design and manufacture technique that appeared to be stopped for one or another reason, never really made clear.
If the ECME project had continued and been developed, who knows how much the world of electronics would have been changed and at what pace this would have taken place.

I strongly recommend that you do absolutely nothing to the radio in any way to change it from the original state.

I expect the desire to hear it working will overide all other thoughts, but be aware that you are dealing with a "Holy Grail" here and not just a radio. So absolutely nothing should be done to it to alter its originallity !!!

If you would like a copy of the DVD we produced of the ECME production process which originated from the Science Museum Archives on 16mm film stock, I will gladly send you a copy as you should really see it.
Just send me your details.

This is an amazing find. I would happily give 5 Green Ekco's for one of these !!!

This is the only other example I know of execpt the one in the Science Museum.


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Old 25th Oct 2012, 2:25 pm   #15
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Default Re: Sargrove. Type A3 radio.

Ever since the beginning of the www. I have typed "sargrove radio" or "sargrove wireless" into a search engine at least once a year. The number of hits has steadily increased and a Google search now lists over 16,000 hits. In all that time I have only come across two radios. One in the Science Museum, and reputedly one in "powerhousemuseum" Sydney, Australia. So you can imagine my excitement at this find.

I found my Sargrove radio in 1978 in Brick lane Market London (at about 05:00hrs using a torch if I remember correctly). Since then I have intermittently added to a file on the topic. In May 2001 I wrote to "Sargrove Industrial Electronic Engineers" asking them if they were connected to the original Sargrove Company. In the subsequent correspondence a gentleman who was a company apprentice at the time of the ECME told me that the old records had been destroyed in a fire only three years previously! There have been quite a few articles about Sargrove, his radio, and the ECME process in Wireless World, Journal of the Brit IERE, Fortune magazine, New Scientist (including errors) etc.

The "National Archive for Electronic Science and Technology" has most of the info, including copies of Sargroves birth and death certificates if you want to go that deep. The radio and its ECME production line are significant steps in the history of electronics and the development of production engineering.

As to the number of radios yet to be discovered, the evidence is conflicting. Chiang Kai Shek is reputed to have received some receivers but my contact at Sargrove thought that there was never a production run. I tend to think that a very small number of prototypes were sent to potential markets. The "British Empire" was thought to be a suitable target. This is perhaps why your radio turned up in South Africa. Do you know anything of its previous history?

It is very possible that we two have the only remaining examples not in a museum, and should look after them accordingly. I have never powered mine up, as I think it is too big a risk for such an important artifact.

I am very interested in the BVWS DVD, please please can I have one too?

Regards to all.
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