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

montgomery wards 62-327 technical q's..
#1

i need to know the results of these components failing as noted;
c1-shorted to ground
c35-open circuited
thanks,phil

http://www.nostalgiaair.org/PagesByModel...011453.pdf

#2

Im having difficulty reading the nostalgiaair pages small-print online. I will have to check my actual Riders volume 8 book to see the schematic more clearly tomorrow, as it is in my workshop.
Looks like both caps are the same value if I read it correctly?
C1 -- 250 mmf to gnd ( in the antenna circuit)?
C35---250 mmf to gnd ( plate of #30 tube)?

looks like this battery-set has a floating ground at the filter supply caps also? Perhaps failure of the orig 250mmf caps were caused because of a previous nearby "lighting-strike" to the antenna circuit in days goneby? Did this set use a outdoor longwire antenna? If so, check closely the antenna & coil assy, as it could be fried internally?Also check for internal-shorts in the #30 tube? Just a guess however. Icon_wink
#3

hi,i finally got back to this one.the caps in question appeared to be mica but after breaking them open wax/paper caps were inside-junk!
replaced those,a.m. reception improved but short wave still dead. i noticed no change in operation with 1st tubes' gridcap wire removed,tube tested good. i found the filament voltage feedwire broken at the socket. as these are low voltage filaments you can't see them lit or not,even in the dark! they barely get warm when they are powered up. fixed the wire and s/w came alive,also needed realigned as i had done that with a dead tube.
radio is a strong performer now and you just gotta love a moviedial,phil

pics here-about half way thru page 2

[Note from Admin - Sorry, the Post this picture link refers to is no longer available. ]







Users browsing this thread:
[-]
Recent Posts
Philco Model 16 wiring question
Thanks Morzh. So it appears I did wire it incorrectly and I have to switch the wires between pins 2 and 4.bobclausen — 11:36 AM
Philco Model 16 wiring question
Thanks Morzh. So it appears I did wire it incorrectly and I have to switch the wires between pins 2 and 4.bobclausen — 09:24 AM
Philco 46-1209 strange behavior
No, it's not a problem, just during certain condition it could show up. Yes, an internal tube short could do that too. ...morzh — 09:13 AM
HiFi (Chifi) tube amp build - but my own design.
You sound guys are never satisfied. :crazy: :clap:RodB — 09:10 AM
HiFi (Chifi) tube amp build - but my own design.
I got some new ceramic octal tube sockets installed and also tried some different coupling caps.  The results:  The go...TV MAN — 08:42 AM
Philco 46-1209 strange behavior
I pulled the tube out and it's shorted from pin 1 to pin 2. I suppose that's the problem...sq65 — 08:12 AM
1949 Motorola 5A9M
bob  Nice work on battery . If you don't. Have terminals i have a few spares  Samsam — 02:12 AM
1949 Motorola 5A9M
hello mr Fixr, for sure !! I have some radios that I need to make some batteries for too. Sincerely richardradiorich — 12:33 AM
1949 Motorola 5A9M
Dittos, sweet b on the battery. Love the "9 Lives" logo, remembered from my childhood. Other neat ones are t...MrFixr55 — 11:24 PM
Philco 46-1209 strange behavior
Hi Morzh, Dunno if the AC EMI caps are an issue. I never liked the concept but never had an issue with these causin...MrFixr55 — 11:21 PM

[-]
Who's Online
There are currently 1181 online users. [Complete List]
» 1 Member(s) | 1180 Guest(s)
Avatar

>