Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Philco 70 tuning backward?
#13

update : I changed the oscillator mica to the proper 110 pf . And that did not change the problem . It is as if no rf and oscillator freq is going across this transformer(#6) . But is going cap to cap on the tubes .And that is why it stops when I put the shield on . I think .
Double checked the 1st detector coil (#6) and 17 ohms primary and 4.6 secondary ohms seems incorrect. Does anyone know what this should be ? I am thinking it should be close to 1:1 ratio. I may have that information coming with prints I ordered . But most of the ones I have spare check close to 1:1 ohms .
 The only coils I have to substitute are 455 khz peak . So that is where I am at with it .At least eliminating
some things .Thanks!
Bill


Messages In This Thread
Philco 70 tuning backward? - by btoher - 10-07-2016, 10:34 PM
RE: Philco 70 tuning backward? - by morzh - 10-08-2016, 09:29 AM
RE: Philco 70 tuning backward? - by btoher - 10-09-2016, 08:53 PM
RE: Philco 70 tuning backward? - by btoher - 10-08-2016, 10:02 AM
RE: Philco 70 tuning backward? - by morzh - 10-08-2016, 11:24 AM
RE: Philco 70 tuning backward? - by Radioroslyn - 10-08-2016, 11:48 AM
RE: Philco 70 tuning backward? - by sam - 10-08-2016, 12:42 PM
RE: Philco 70 tuning backward? - by btoher - 10-08-2016, 06:46 PM
RE: Philco 70 tuning backward? - by morzh - 10-09-2016, 09:12 PM
RE: Philco 70 tuning backward? - by btoher - 10-09-2016, 11:33 PM
RE: Philco 70 tuning backward? - by Radioroslyn - 10-10-2016, 12:53 AM
RE: Philco 70 tuning backward? - by btoher - 10-14-2016, 09:15 PM
RE: Philco 70 tuning backward? - by btoher - 10-16-2016, 12:24 PM
RE: Philco 70 tuning backward? - by Radioroslyn - 10-16-2016, 03:06 PM
RE: Philco 70 tuning backward? - by btoher - 10-17-2016, 07:34 PM
RE: Philco 70 tuning backward? - by Radioroslyn - 10-17-2016, 07:50 PM
RE: Philco 70 tuning backward? - by Steve Davis - 10-17-2016, 08:25 PM
RE: Philco 70 tuning backward? - by Radioroslyn - 10-17-2016, 09:28 PM
RE: Philco 70 tuning backward? - by btoher - 10-18-2016, 07:38 PM
RE: Philco 70 tuning backward? - by Steve Davis - 10-19-2016, 07:14 PM
RE: Philco 70 tuning backward? - by btoher - 10-23-2016, 04:28 PM



Users browsing this thread: 1 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 5146 online users. [Complete List]
» 2 Member(s) | 5144 Guest(s)
AvatarAvatar

>