Philco model 18 (code 121) - HELP!
Posts: 1,562
Threads: 56
Joined: Nov 2008
City: Sedona, AZ/Placentia/CA
The bypass trick was for the shadow meter, not the coil in question, it is the primary of item 10. To check, I would hook one lead of your meter to the plate of the 78 RF tube and use the other probe to touch each of the 6 (I believe) connections to the bottom of the coil in question, one at a time. One should be at 0 ohms (the line from the plate and another should be a couple of ohms for the primary of the coil. If you don't get two connections with the low resistance, the coil is open. Let us know, there are opportunities for rewinding available. Philcos are notorious for coil problems.
Jerry
A friend in need is a pest! Bill Slee ca 1970.
(This post was last modified: 04-23-2013, 06:36 PM by jerryhawthorne.)
Messages In This Thread
RE: Philco model 18 (code 121) - HELP! - by jerryhawthorne - 04-23-2013, 06:33 PM
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 3630 online users. [Complete List]
» 1 Member(s) | 3629 Guest(s)
|
|
|
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
