Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Grid cap ?
#1

Hi, I think that is what they are called. Metal cap at top of a tube connected to the grid . I am starting to recap a farm set 41-95 .As I tried to remove the wire carefully from the top of the tube the metal cap came off. So there is a small wire sticking out of the tube on top .
I suspect the seal to the tube is ok. And I can only think this wire needs to be soldered back on. Has anyone had to do this before ? Is there a tip or certain method to use .The cap has a cork like plug in its base that rest against the tube.Then way up at the top of the cap it was soldered .I do not think I can pull that type of solder job off. I know I can't . I was going to half fill the cap with solder heat then stick the tube (upside down ) into the cap . Don't want to learn from experience (mine) if possible.So I would appreciate any info or help on this .
Thanks !

Bill T
#2

Bill-
We have all done it before. If the lead from the tube is full length- that is it will stick through the hole in the metal cap- just resolder it and glue it back on with super glue. You may want to scrape the lead and tin it with solder first.

If the remaining lead on the tube is short, you will have to scrape it carefully with an Xacto knife, and wrap it with some fine buss wire, and solder it. Before you feed this fine wire through the grid cap hole, leave an extra length inside the cap so that your wire doesn't come unsoldered from the tube lead when you do the final cap joint.

Pete AI2V
#3

Pete, Thank for the instructions .That was the first time I run into that.
Did not realize there was a hole in the cap . I did'nt think the solder was on the outside , it looked like metal or part of the cap ! That was'nt so bad after all.I thought I was going to have to solder the wire up inside the cap somehow. Anyway worked out fine once I read your post and tried it .
Thanks for the help!

Bill




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
The list of my radio & TV collection!
Hello Peter, Thank you for posting that !! Sincerely Richardradiorich — 09:40 AM
Eico 232 VTVM Schematic
It's a microwave antenna. ?;-p?. I substituted 1N4002s off the 6.3 vac winding for the 1.5 volt battery. Uniprobe is the...RodB — 05:50 PM
Eico 232 VTVM Schematic
Try BAMA for a schematic. Looks like a replacement power source for the D battery has been installed. The tube may be...Chas — 04:51 PM
Eico 232 VTVM Schematic
Is that a battery holder?morzh — 04:43 PM
Eico 232 VTVM Schematic
A friend gave me this Eico 232 VTVM and I'm having trouble locating the schematic for it. This one seems to be a later v...RodB — 04:17 PM
Var resistor id
Considering what it is in series with, I doubt there should be any power requirements. Of course, we should know wher...morzh — 03:23 PM
Var resistor id
Trim pot, about 1/2 watt part of focus divider. As stated 2k ohms. This appears to be a rusty chassis, resolder all ...Chas — 03:19 PM
Var resistor id
Its a Sylvania 400 oscilloscope. here is a clip of r-100. Would be nice to know the current required. Not listed in part...Martinj — 02:10 PM
The list of my radio & TV collection!
Thanks Richard. I hope you enjoy it. Here I have created an English section on the history of radio with videos in Engl...RadioSvit — 10:23 AM
The list of my radio & TV collection!
Hello RadioSvit, first all happy new year ! I will watch your new videos this week. Sincerely Richardradiorich — 09:19 AM

[-]
Who's Online
There are currently 5640 online users. [Complete List]
» 1 Member(s) | 5639 Guest(s)
Avatar

>