While repairing a small Weston meter, I found these strangley marked resistors inside. Has anyone seen these type before? What is significant about the way they are marked.

Just curious,

Thanks,
Gary

 

Are you sure they are resistors and not some other, caps maybe?
Unless they are very low value precision?
Max.

 

Max,
I'm not sure they are resistors. But they look like they have been hand painted over.
Several with same colored dots, a couple with different colored dots, and one painted jet black.

Weird?
Thanks,
Gary

 

It could be the instrument makers own ID's for certain tight tolerance of components.
Max.

 

I am guess makers marks too in order to speed up building processs.

 

Is it an light meter or frequency meter? The way they are dipped/encapsulated they could be inductors. If a frequency meter they probably are inductors. http://www.electrical4u.com/weston-type-frequency-meter/

 

I have seen identically marked components in older tube type two way radios.
They are 100% certainly made with wire. Composition and winding method can create either an inductor or precision resistance.

 

See if this helps you at all.

http://www.radioremembered.org/rescode.htm

 

Could be hand wound wirewound low ohms resistors. They would wind them to an exact spec, then paint, then add dots or markings. I still have some old resistance wire here on a spool somewhere.