Can't Identify Components in Old Guitar Amplifier

[Jsprite7660]

Hello,

I'm replacing some components in my guitar amplifier but I can't figure out what these two things are. Attached are photos of both. I think they're capacitors but am not sure. There isn't any print on either of them.

I could not find any schematics for this amp as it is an obscure Webster Electronics amplifier.

Let me know if you have any info on these. Thanks all!

 

[Bluejets]

Inductors possibly...leave them in place.

 

[roughshawd]

That's a really old amp. Can't remember that far back. I think I tested them for resistance and they didn't do anything... I know the store owner was really p.o.'d and told me to just leave it alone... What kind of amp?

 

[kellys_eye]

They both look like resistors to me. The red one certainly is. The value is read from the colours - body, tip, spot. So body red (=2), tip (orange?) =3 and spot (brown?) = x10 multiplier. Value is therefore 230 ohms.

The colours may have changed over the years so the above is just a guess. If you have a test meter you could just measure it. They have a 10% tolerance (the silver band) so the value can vary 'a bit'.

A simple resistance test on the green one will reveal whether it too is a resistor - else it is a capacitor! I still think 'resistor' although it has been badly overheated.

 

[Bluejets]

They both look like resistors to me.

Think you are correct.......either way, possibly still ok so as before, leave well alone.

https://hackaday.com/2020/01/13/why-do-resistors-have-a-color-code/

 

[danadak]

Great ref material https://alliedcatalogs.com/index.htm

Carbon R's in old gear usually out of spec, especially ones that run hot, such as Cathode and Plate R's,
power supply V dropping R's, screen grid R's.

Regards, Dana.

 

[kellys_eye]

Cathode resistors commonly fail due to capacitor failure - change the capacitors first. Then change the obviously overheated resistors. Unless the remaining resistors read well outside their tolerance I'd leave them alone.

 

[Jsprite7660]

That's a really old amp. Can't remember that far back. I think I tested them for resistance and they didn't do anything... I know the store owner was really p.o.'d and told me to just leave it alone... What kind of amp?

It sounds amazing, t's a Webster Electric (From Racine Wisconsin) amplifier. It's probably an early 60's I feel.

 

[Jsprite7660]

View attachment 62356

Great ref material https://alliedcatalogs.com/index.htm

Carbon R's in old gear usually out of spec, especially ones that run hot, such as Cathode and Plate R's,
power supply V dropping R's, screen grid R's.

Regards, Dana.

Thank you very much!

 

[Jsprite7660]

Cathode resistors commonly fail due to capacitor failure - change the capacitors first. Then change the obviously overheated resistors. Unless the remaining resistors read well outside their tolerance I'd leave them alone.

Sounds good will do. I was planning on checking the filter caps mainly and then came across those and was confused. Thanks!

 

[Jsprite7660]

They both look like resistors to me. The red one certainly is. The value is read from the colours - body, tip, spot. So body red (=2), tip (orange?) =3 and spot (brown?) = x10 multiplier. Value is therefore 230 ohms.

The colours may have changed over the years so the above is just a guess. If you have a test meter you could just measure it. They have a 10% tolerance (the silver band) so the value can vary 'a bit'.

A simple resistance test on the green one will reveal whether it too is a resistor - else it is a capacitor! I still think 'resistor' although it has been badly overheated.

Cool, thanks a lot!