I found these in a box of old military electronics parts

[djn]

Are these usable for an amp?

 

[motosapien]

What do they measure?

 

[Elvee]

Good ol' carb-comp resistor. Mostly useless nowadays, except if you need a not specially accurate, medium-power dropping resistor

 

[wrenchone]

Maybe a film resistor of some sort, as the leads are wrapped on the outside of the tube - 10% tolerance anyway, given the silver splash on the end. Maybe some sort of solid composition resistor anyway, as it's a cylinder of compressed stuff rather than a hollow tube.

 

[djn]

What do they measure?

I’ve not measured them yet. Just doing spring cleaning in the shop.

 

[motosapien]

Probably most pleasing left in original packaging/condition.

 

[johnnyx]

Carbon composition resistors have a very good surge rating. Farnell sell modern carbon composition resistors for use as inrush current limiters on power supplies, as the bus caps charge up, which are then shorted with relay contacts once the power rails are established.

 

[Tubelab_com]

They look to be from the same age as this box. I got a warehouse full of old tubes, mostly loose in boxes, or bulk packs that have seen better days. This unopened box from 1937 was in a 105 gallon drum (lower right in last picture) full mostly broken loose tubes. My first thought was to list it unopened on Ebay, but curiosity got the better of me and I ripped into it. Inside were a pair of Western Electric branded 6V6GT tubes. They looked like RCAs to me. I'm not sure what happened to them since the picture is 20 years old.

 

[gorgon53]

Looks like a "ceramic" resistor to me, low inductance, high pulsepower, noisy, humidity, temperature and most likely a bit voltage dependend resistance, what else?

 

[Demonkleaner]

I've heard them called "dog bone" resistors. Don't think I'd try them in any
meaningful circuit. I've got a pile of them. Body Dot End is the color code but
it doesn't make sense as the body should be green?

 

[gorgon53]

Green is five, blue red red silver is 6200, 10%, exactly what is said on the paper
They are pretty old, i would put them on ebay, someone restoring antique electronics migth have better use for them

 

[djn]

Good idea Gorgon. I have 4 big boxes of old stuff to go through.

 

[huggygood]

we should open a thread where we would put photos of our stock, it could be fun.🤣🤣

 

[djn]

👍😂👍

 

[Netlist]

They are very useful to assemble point to point vintage amplifiers.

 

[jhstewart9]

When I wuz young & still had hair & teeth this style of resistor was common.
Right out of the 1930s.

 

[JMFahey]

I wouldn't -specially- look for them or pay extra but on the other side not avoid using them, at all.
If I have to drop, say, 50 or 100V from a node to the next or at some screen or from cathode to ground they will do their job just fine.
Ohm's rule still rules as in 1827, go figure. 😎