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

A new user with model 60 woes
#9

Ron,
I took out all of the coils and measured the resistance, and they all measure exactly to the ohm what they are supposed to. I checked with (2) meters. The only problem I showed was on the oscillator coil, which looks original, the primary tests at 11.5 ohms instead of 3.4 ohms. I pressed on the coil and it went down to 9 ohms and when I released, it went back up to 11.5. The wire used on this is very fine gauge, much smaller than the antenna primary or than the secondaries. Do you know what gauge to use? I show 18 or 19 windings, can you confirm this? I was thinking that this was not the culprit either, as the oscillator showed very stable all over both bands. I get intermittent gain increases when the unit is on for the first 20 minutes, then stabilizes. This happens with different 6A7 and 78 tubes too. If I use a 50 foot antenna, the problem is worse at the lower end of the AM dial than when I use a 10 foot antenna. The antenna trimmer seems to peak the 10 foot antenna better than the 50 foot. That is the state of affairs now, at least. Thanks for your help. Ron M.


Messages In This Thread
A new user with model 60 woes - by Guest - 07-27-2007, 08:30 PM
Model 60 woes - by Guest - 07-28-2007, 02:14 PM
Need help with heterodyne issue on AM band - by Guest - 07-28-2007, 07:14 PM
[No subject] - by Ron Ramirez - 07-28-2007, 11:52 PM
Philco model 60 woes - by Guest - 07-28-2007, 11:59 PM
[No subject] - by rickd - 07-29-2007, 01:32 PM
[No subject] - by Guest - 07-29-2007, 11:11 PM
[No subject] - by Ron Ramirez - 07-29-2007, 11:47 PM
[No subject] - by Guest - 07-30-2007, 12:01 AM
[No subject] - by Guest - 08-03-2007, 06:46 PM
[No subject] - by Ron Ramirez - 08-04-2007, 10:20 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
PT 6 chassis screws size???
Hello bridKarl, that sounds right or maybe 8/32 . Sincerely Richardradiorich — 01:00 AM
PT 6 chassis screws size???
Have this done except for missing chassis screws. It looks like 1 inch 6/32 sheet metal screw may work but can anyone s...bridkarl — 10:32 PM
Philco model 38 code 121 not receiving signal.
Hello Stormlord, Well done on rewinding that coil it turned fairly good for your first one. Sincerely Richardradiorich — 09:12 PM
Philco model 38 code 121 not receiving signal.
Well here it is. It ain't pretty, but hopefully it'll work. I checked it with my DMM on continuity and it keeps and r...Stormlord5500 — 08:56 PM
Philco 42-345 Restoration/Repair
Yes, 57 is an electrolytic cap that should be 12 mfd 400 volts according to the parts list from the Phorum library schem...RodB — 06:01 PM
Philco 42-345 Restoration/Repair
Looks like if I am reading it correctly it looks like the silver capacitor#57 that appears to be a replacement is of a l...osanders0311 — 05:09 PM
Philco model 38 code 121 not receiving signal.
Thanks Arran. Yeah this plastic is pretty thin. It's a little thinner than the original stuff. It kinda reminds me of p...Stormlord5500 — 04:37 PM
Testing a speaker and output transformer Trutone A2-G
The equivalent of one short turn is basically the same as that of a shorted load. If it is the primary's turn, then the ...morzh — 03:53 PM
Testing a speaker and output transformer Trutone A2-G
I've never had an output transformer become shorted, the failure mode is usually an open primary, or in a center tapped ...Arran — 03:52 PM
Philco model 38 code 121 not receiving signal.
As long as the plastic sheeting isn't too thick, I think that the thickness of photographic film would be just about rig...Arran — 03:19 PM

[-]
Who's Online
There are currently no members online.

>