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Old 18th Feb 2018, 11:59 pm   #1
Radio1950
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Default Eddystone EC10 Power Supply 4 Pin Connector

Hi all.

I am almost finished on a mini restoration of an Eddystone EC10 receiver.

The power supply plug is functional, but one wing is broken.
The connector is marked McMurdo.

Does anyone know what these are called?
Does anyone have an old McMurdo catalogue with these listed?
Does anyone know where I can buy or get a plug please?

At work, in a previous life, we literally used thousands of the ten pin versions of these connectors on modules in audio and control systems.
I think we called them McMurdo PP10 and PS10.

Thanks

mike
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Old 19th Feb 2018, 1:43 am   #2
JohnBG8JMB
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Default Re: Eddystone EC10 Power Supply 4 Pin Connector

As far as I know, these are now unobtanium. You could try the eddy yahoo group
https://uk.groups.yahoo.com/neo/grou...io_users/info; Ian Nutt has many spares.
If you find a source, let me know...

WARNING When used on the AC mains power supply, these connectors are unsafe.

There's lots of info the EC10 and all Eddystones on on http://eddystoneusergroup.org.uk/

cheers
JohnB
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Old 19th Feb 2018, 3:01 am   #3
Argus25
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Default Re: Eddystone EC10 Power Supply 4 Pin Connector

Hi Mike,

I'm just up the road from you in M'Dore. I looked through my parts and sadly I couldn't find one of those plugs, that short one seems quite unique to the EC-10 and I haven't seen it elsewhere.

I really like the EC-10 and have a few of them, on one it had an L/O buffer added to drive an external frequency counter with the IF offset applied.

All of my EC-10 units have had the RF transistors replaced due to the tin whisker problem. I used AF178's which I bolted in using the method shown here:

https://www.vintage-radio.net/forum/...d.php?t=139849
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Old 19th Feb 2018, 10:17 pm   #4
Radio1950
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Default Re: Eddystone EC10 Power Supply 4 Pin Connector

Hi John
thanks for that.
Mine is an early version, battery only.
Wonder who in Eddystone dreamt up the silly and dangerous mains operation practicalities.

I have asked Ian Nutt from the Eddystone User Group for info, inter alia.

G'day Argus
Thanks.
I will post a short note about my EC10 on this and the EUG forum, soon, when finished.

Three EC10s?

mike

Last edited by Radio1950; 19th Feb 2018 at 10:20 pm. Reason: Not enough coffee
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Old 22nd Feb 2018, 10:57 pm   #5
bill knox
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Default Re: Eddystone EC10 Power Supply 4 Pin Connector

Hi Mike

I am not sure which part you want, I have bought several of the chassis mounted socket from the Eddystone User Group and the chap to get hold of is Ian Nutt, I am not sure if I can give his email here, maybe someone will let me know

He will take a day or two to get back to you, good luck.

Regards

Bill
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Old 23rd Feb 2018, 6:35 pm   #6
Wendymott
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Default Re: Eddystone EC10 Power Supply 4 Pin Connector

Hi Mike.. To be honest.. this is surely an excuse to find an alternative connector. Any two pin will be more suitable than the stupidly dangerous mains connection. How did it pass BS415... the safety standard of the time.
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Old 23rd Feb 2018, 7:04 pm   #7
G6Tanuki
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Default Re: Eddystone EC10 Power Supply 4 Pin Connector

Quote:
Originally Posted by Wendymott View Post
How did it pass BS415... the safety standard of the time.
Being within the case of the radio and so protected from 'first access' it would have passed BS415 just as uninsulated anode-caps on the tops of PL519 line-output-valves on 1960s colour-TVs did....
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Old 28th Feb 2018, 11:53 am   #8
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Default Re: Eddystone EC10 Power Supply 4 Pin Connector

Dismounted "High horse"...Yes Tanuki... As the case is earthed, and the live parts un accessible..it was to standard. But in our case, it is a dangerous thing to have "floating about".... apologies.
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Old 28th Feb 2018, 1:01 pm   #9
Hermit6345
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Default Re: Eddystone EC10 Power Supply 4 Pin Connector

Mike, I think that I may have one of those in my spares. If Ian Nutt can't help, drop me a PM.
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Old 1st Apr 2018, 9:55 am   #10
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Default Re: Eddystone EC10 Power Supply 4 Pin Connector

Mike, maybe a bit late but there is just the one on ebay, it jogged my memory.
Search for 162952709132
No connection to myself!
I saw it whilst was doing a search for a guide price of an 880/2 rx and then searched the forum to find it was you looking.
Rob
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Old 21st Apr 2018, 2:27 pm   #11
Radio1950
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Default Re: Eddystone EC10 Power Supply 4 Pin Connector

Hi Rob,

Thanks for the lead.
I have only just seen your post, as I am travelling in Zambia.
Searched in The Big Auction, but no response.
I initially that your post date might be suspicious!

I have twice tried to email "the man", and will try again when I get home.
Regards
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Old 21st Apr 2018, 2:28 pm   #12
Radio1950
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Default Re: Eddystone EC10 Power Supply 4 Pin Connector

Quote:
Originally Posted by Hermit6345 View Post
Mike, I think that I may have one of those in my spares. If Ian Nutt can't help, drop me a PM.
Thanks Hermit

I will PM you if all other avenues fail

Rgds
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Old 16th Jul 2018, 7:24 am   #13
Radio1950
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Default Re: Eddystone EC10 Power Supply 4 Pin Connector

Quote:
Originally Posted by robinshack View Post
Mike, maybe a bit late but there is just the one on ebay, it jogged my memory.
Search for 162952709132
No connection to myself!
I saw it whilst was doing a search for a guide price of an 880/2 rx and then searched the forum to find it was you looking.
Rob
Thank you Robinshack

I eventually found a connector on eBay.
Used but OK.

Might give hope to other searchers.

Thanks also to Hermit for the offer.
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