Philco model 18 (code 121) - HELP!
Posts: 143
Threads: 11
Joined: Dec 2013
City: Ithaca NY
OK, so if you touch the grid cap to the RF amp (#78 ) does it
also bring in the signal?
If the answer is yes then the problem is somewhere between
the grid of the 78 and the antenna terminal
If the answer is no then the problem is somewhere between
the 78 tube and the 6A7 grid.
Could be any number of things, open coil being one of
the possibilities. Could also be a missing or broken wire,
a bad connection, a bad capacitor, to name a few.
You're going to just have to start eliminating possibilities
one at a time
Herb
Messages In This Thread
RE: Philco model 18 (code 121) - HELP! - by hsusmann - 01-04-2014, 10:09 AM
Users browsing this thread: 4 Guest(s)
|
|
Recent Posts
|
|
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 |
|
54C Complete Teardown/Rebuild
|
| The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM |
|
54C Cabinet Refinish
|
|
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM |
|
Who's Online
|
There are currently 2647 online users. [Complete List] » 1 Member(s) | 2646 Guest(s)
|
|
|
|

|