philco tropic model 42-760
Posts: 7,294
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
(11-10-2016, 09:54 AM)the picker Wrote: I connect two parallel and have a reading of minus 6.4 dc v and no change in radio but I have a bad feeling I have a bad volume control also because it crunches when I turn it and so when I tested the resistance from the centre pin to one side it has .2 ohm at high volume and .1 ohm at low and from centre pin to other side at high volume it has .600m ohm and at low it has .600m ohms and across the two outside pins it has .600m ohms
Schematic shows a volume control w/4 connections (2meg w/a tap at 1meg) On the other hand the tone control has 3 connections. Maybe your vc was replaced too.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
Messages In This Thread
RE: philco tropic model 42-760 - by Radioroslyn - 11-10-2016, 12:42 PM
Users browsing this thread: 32 Guest(s)
|
|
Recent Posts
|
|
RCA T62 is playing.....
|
| Beautiful set.morzh — 09:07 PM |
|
An attempt to remove the Field Coil from a G speaker
|
| Well....here it is.
The green stuff. Unfortunately, probably penetrates deep.
I opened the top layer and saw that:
...morzh — 08:58 PM |
|
Philco 91 Restore Code ??
|
| :clap: :clap: :clap: :clap:
Really nice workmanship!!! Top of the chassis looks great.
Sorry about the long winded e...MrFixr55 — 08:09 PM |
|
Philco 40-120C Restoration
|
| Thank you for your reply. I will check voltages on the other tubes, look at resistor 23 and cap 25, etc. If all else fai...bluecap — 07:58 PM |
|
RCA T62 is playing.....
|
| Nice looking set great save. DavidDavid — 07:48 PM |
|
Philco 89 indicator light.
|
| Hello Jim, I have done several 89s. The trick is to move the drum in or out on it's shaft. You will need to loosen a set...dconant — 07:36 PM |
|
An attempt to remove the Field Coil from a G speaker
|
| MrFixr
Yes, it is my plan to go with 45rpm spider if I go that far.
No, the pole was not left-handed as I unscrewed ...morzh — 07:14 PM |
|
Philco 40-120C Restoration
|
| Change the tube. Check the tube's bias network.
Are any other tubes experience the drop or just this?`
Is resistor 23 OK...morzh — 07:09 PM |
|
Philco 89 indicator light.
|
| I forgot how the pointer is formed: could you show the way it is formed and how you tried to change it?morzh — 07:01 PM |
|
An attempt to remove the Field Coil from a G speaker
|
| Was that pole piece left handed ?
Since the metal "spider" is toast, wonder if you can either get the "4...MrFixr55 — 06:54 PM |
|
Who's Online
|
There are currently 8687 online users. [Complete List]
» 3 Member(s) | 8684 Guest(s)
|
|
|
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
