Posts: 182
Threads: 5
Joined: Feb 2017
City: Cedar Rapids Iowa
I "think" I found a problem today. I got my tube tester. It's a Jackson 115 and it turns out it's it's own project lol. It needs some cleaning and the glass in the meter is broken. I took the meter out and took it apart and removed the broken glass. I have some plexiglass that's 0.01" thicker than the glass, but I think it'll work. I cleaned all the switches and controls and will work on cleaning up the front panel.
Anyway, the tester shows that 1/2 of the 7AF7 tube is completely bad. If I'm interpreting the tube tester settings correctly it's the 1/2 that processes the radio signal. The 1/2 that processes the phono signal tests ok. It's hard to know if the tester is accurate, but I'll be ordering a replacement 7AF7 while I try to get the tube tester shaped up.
Rich
Messages In This Thread
RE: My 47-1230 Restoration - by criageek - 05-07-2017, 10:51 PM
Users browsing this thread: 4 Guest(s)
|
|
Recent Posts
|
|
Philco P45-6365 Universal Transformer Instruction Manual
|
| Can anyone guide me to where this may be found?GRG — 03:00 PM |
|
54C Complete Teardown/Rebuild
|
| I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM |
|
HiFi (Chifi) tube amp build - but my own design.
|
| It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM |
|
Philco 71 Code 125
|
| Hello,
I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM |
|
Stromberg Carlson 1500 Squeal
|
| And life just keeps getting more complicated.dconant — 07:57 AM |
|
54C Complete Teardown/Rebuild
|
| Hello Roy,
here is this one
sincerely Richardradiorich — 12:45 AM |
|
54C Complete Teardown/Rebuild
|
| Richard,
Had grabbed it already but thank you just the same. I find myself wanting to find some way to block out the...glyphmon — 12:03 AM |
|
54C Complete Teardown/Rebuild
|
| Hello roy,
here is a link to the schematic .
Sincerely Richardradiorich — 11:54 PM |
|
54C Complete Teardown/Rebuild
|
| Richard,
The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM |
|
Preliminary work on wife's Silvertone 2014
|
| Did an alignment today which was interesting. IF alignment went great, almost all was already spot-on. Adjusting on th...glyphmon — 11:35 PM |
|
Who's Online
|
There are currently 1447 online users. [Complete List] » 1 Member(s) | 1446 Guest(s)
|
|
|
|

|