Posts: 2,118
Threads: 112
Joined: Jun 2010
City: Medford OR (OR what?)
(11-19-2016, 01:57 PM)the picker Wrote: (11-19-2016, 11:51 AM)Phlogiston Wrote: Assuming that all of the capacitors were installed correctly, check the values of all of the resistors in particular a canned-ohm if it has one.
I am not sure what a canned ohm resistor is but I will check the others
It is the voltage divider resistor from which is derived the bias voltages. It is often a wire-wound in a metal sleeve riveted to the chassis for heat dissipation. The wire can burn open but most often the contacts become intermittent.
In most of my recent repairs, I would estimate that 1/2 to 2/3 of all resistors had either failed or were way out of tolerance.
"I just might turn into smoke, but I feel fine"
http://www.russoldradios.com/
(This post was last modified: 11-19-2016, 02:24 PM by Phlogiston.)
Messages In This Thread
RE: marconi 157 - by Phlogiston - 11-19-2016, 02:22 PM
Users browsing this thread: 14 Guest(s)
|
|
Recent Posts
|
|
Shadow Meter Bulb
|
| Phorum members, I am trying to find the bulb # for PHILCO Shadow Meter part number 45-2180 that is from a 37-640 chassis...georgetownjohn — 06:53 PM |
|
Philco 41-608 changer coupler
|
| 3D-printing...short of machining, of course.
Or molding.morzh — 05:20 PM |
|
Philco 41-608 changer coupler
|
| Thanks, Morzh.
That solves the issue of the rubber pieces. Now, I need to find a way to replicate the pot metal piec...alangard — 05:07 PM |
|
12' Philco
|
| If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel.
Kareem would have an e...morzh — 01:48 PM |
|
12' Philco
|
| And here's a story about the tires on the truck. Same "no-stoop" guy must have installed these! Take care a...GarySP — 01:17 PM |
|
Hickok AC51 tube tester
|
| I think they have only shown the secondaries of the transformer.
Two of them feed the rectifiers' filaments.morzh — 12:58 PM |
|
IF can wire size and Rubber mounts?
|
| Arran
If the wire inside cans is the gauges you mentioned, the sole reason for that would be mechanical, to stiffen t...morzh — 12:56 PM |
|
12' Philco
|
| Rod,
Yes, I know, but the Giant Philco is not around anymore either, so I go by whoever was alive fairly recently.
H...morzh — 12:54 PM |
|
Hickok AC51 tube tester
|
| Absolutely no one is going to reverse engineer that circuit. Even the iron core is missing.RodB — 10:37 AM |
|
IF can wire size and Rubber mounts?
|
| Thanks to both members for your help regarding wire and tuner mtg supports. regards--Johngeorgetownjohn — 09:33 AM |
|
Who's Online
|
| There are currently no members online. |
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
