Globe tubes

Thread Rating:

0 Vote(s) - 0 Average
1
2
3
4
5

Linear Mode

Globe tubes

gregb
Senior Member

Posts: 599
Threads: 24
Joined: Jan 2014
City: Edmonton AB CA

10-03-2014, 10:22 AM

That would be the material used to coat the filament so electrons are given off at a lower filament temperature. I have found over the years that tubes that have been abused electrically, ie: over heated due to bad caps, tend to do this. I have also noticed lately that some of my NOS early globes are doing the same thing and they have never seen any service so not sure what to make of it. The biggest problem with this is this material can cause a short in the tube if it gets between a couple elements.

Gregb

Find

« Next Oldest | Next Newest »

Messages In This Thread

Globe tubes - by fields 100 - 10-03-2014, 08:48 AM

RE: Globe tubes - by gregb - 10-03-2014, 10:22 AM

RE: Globe tubes - by AI2V - 10-04-2014, 11:51 AM

RE: Globe tubes - by fields 100 - 10-04-2014, 11:59 AM

RE: Globe tubes - by codefox1 - 10-04-2014, 01:09 PM

View a Printable Version

Users browsing this thread: 1 Guest(s)

Recent Posts
New Philco Repair Bench
I am sure this is the archive, and not the Chuck's site.morzh — 09:50 PM
Made mistake & did not label connection
It's not like we are good friends with that wire and can tell it from other ptetty identical looking wires. Why'n't you...morzh — 09:49 PM
Made mistake & did not label connection
I'm not sure why that wire wasn't covered in the video. I'm pretty sure the 6A8 won't work until that pin is grounded. Y...RodB — 09:47 PM
Made mistake & did not label connection
You'll have to forgive me, I am not sure what you mean. Can you explain what you are really saying. If anyone does not...georgetownjohn — 08:05 PM
Made mistake & did not label connection
Those are details better left to the ones who know. Maybe you disconnected the wrong end of the wire.RodB — 06:22 PM
Made mistake & did not label connection
Maybe this is starting to make some sense in my hard head. Is this why the wire in question was not in the great Ron Ra...georgetownjohn — 04:34 PM
Made mistake & did not label connection
I was correct with the 6A8 pin connection's, 7 and 8 are connected to ground as well as the tube shield (the broken line...RodB — 02:41 PM
Made mistake & did not label connection
What does the dotted line representing that surrounds the tube in the schematic?georgetownjohn — 02:17 PM
Made mistake & did not label connection
Hello John, I have been there either label got lost or was not labeled ! Sincerely Richardradiorich — 02:15 PM
Made mistake & did not label connection
Sorry, it is a Philco 37-640. Does that help?--Johngeorgetownjohn — 02:14 PM

Who's Online
There are currently no members online.

Login
Username:
Password:	Lost Password?
	Remember me