Identifying carbon film resistors

darrell · Post by **darrell** » Fri Feb 16, 2007 11:16 pm

I have some carbon film resistors that i need to identify as brand. Can some one help.. I took one apart and inside it has a hollow glass tube the carbon is on the out side of the glass tube there coco brown in color and some have 5 color bands but eather 4 or 5 band there the same brand i would think. the extra band is the only diference inside and out. They do have a seem in them and have solid tinned copper leads. I dont think there xicon because xicons are redish orange. I will include a pic.. Thanks for your help Darrell

Guitar Adjuster · Post by **Guitar Adjuster** » Sat Feb 17, 2007 9:53 am

Those are carbon comp, not carbon film. Maybe allen bradley, I do not know how to tell the CC's apart from one another. Maybe someone can chime in.........

darrell · Post by **darrell** » Sat Feb 17, 2007 4:06 pm

They are carbon film they have a hollow glass cylinder with carbon film on the out side carbon comp's are solid carbon. I will post a CC pic..Im surprised that no one has jumped on this..

Guitar Adjuster · Post by **Guitar Adjuster** » Sat Feb 17, 2007 11:10 pm

I have never seen any CF's look like that, someone here should know.

novosibir · Post by **novosibir** » Sun Feb 18, 2007 5:14 am

You might call it "thick film CF's", when you want.

But no! These are definitely CC's, even when they do have a hollow area inside. CF's always are on a ceramic tube with a very thin carbon film on it, with a laser traced hex to make a long small path from the carbon film, and they have covers on both ends.

The glass cylinder on the CC's above only is, to give the leads their a center.

Larry

darrell · Post by **darrell** » Mon Feb 19, 2007 9:52 am

I wonder who manufactured them? Here is a carbon film with a glass center you can see right through it. I wounder also if the ones above would be OK to use in my jtn45 clone?