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

Need a decent schematic Scott Laureate
#15

The after pic from my work on the voltage divider. It looks a lot better. I found resistors that are a lot closer to what the schematic calls for, but for some odd reason the voltages are still high. Should be 250/100/60, but are 275/180/135. The 275 is understandable, given my higher line voltage. The others are a bit confounding. One thing's for sure, the new resistors take up a lot less room, and don't get very warm at all.

   

Also pretty much finished recapping the audio section, still a bunch to go, but I like to work section by section, to find the actual problems rather than shotgunning. Still end up recapping the total radio, but learn more along the way.

Also found out tonight that the bass control, schematic calls for a 1Mohm and a .05 cap, the replacement is a 100K and a .001 cap. So, now I have to find a replacement for that control.


Messages In This Thread
RE: Need a decent schematic Scott Laureate - by BrendaAnnD - 01-28-2014, 10:29 AM



Users browsing this thread: 8 Guest(s)
[-]
Recent Posts
An attempt to remove the Field Coil from a G speaker
Gary I in fact did, on a 38-14, I think, where I had a speaker with the dead coil. Well...it kinda worked. Kinda, be...morzh — 10:38 PM
An attempt to remove the Field Coil from a G speaker
Mike, what ever happened to that plan you had to try using a rare earth magnet to magnetize the pole? This looks like a...GarySP — 10:25 PM
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

[-]
Who's Online
There are currently 6640 online users. [Complete List]
» 1 Member(s) | 6639 Guest(s)
Avatar

>