ERG resistors

[Bushbaby]

Hi All,
Does anyone have information regarding ERG power resistors at all? I have just bought maybe 200 from a well known auction site. These are in individual sealed bags and each one contains a typed reference number.

They are appear to be of very defined values.

Regards

Rob

[Andy - G8MNM]

Hi Rob,

What do you need to know?

Andy

[Bushbaby]

Hi Andy
They appear to be very specific and odd values. Did they have any specific application? What were they used in and approximately how old are they?

Many thanks

Rob

[AlanBeckett]

Picture?

Alan

[Bushbaby]

Alan,
Pic attached as requested

Regards

Rob

   

[Andrewausfa]

That's an NSN number if I ever saw one. The NSN is the 13 digit sequence beginning 5905. If you had access to the database it would come up with something like - RESISTOR, FIXED, 68R, 5W, 5% etc etc

ERG Components are part of ITW Ltd.



Andrew

[Joe]

For the uninitiated, NSN = NATO Stock Number. In other words the're made for military applications.

- Joe

[Andy M0FYA]

They look remarkably like Welwyn wire-wound resistors - is ERG perhaps a name for a Welwyn range rather than a different make?

Andy

[pwdrive]

Could be wrong but in the 40's 50's it was ERG Resistors Ltd of Finchley Rd, London and later came to be ERG Industrial Corp. of Luton Rd, Dunstable, they did manufacture to Mil spec. Must admitt though those resistors look dead ringers for Welwyn....

Lawrence.

[AlanBeckett]

There is/was another sort where the terminations were made off externally - see attached.
I don't know who made them 'cause they're all the wrong way round, although they do have a 'W' on them.
They're in a '60s Marconi 'scope.
When I get to it I'll see what else is on there.
Come in Al, your time is up.

Alan