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: 1 Guest(s)
[-]
Recent Posts
The list of my radio & TV collection!
Hello Peter, Thank you for posting that !! Sincerely Richardradiorich — 09:40 AM
Eico 232 VTVM Schematic
It's a microwave antenna. ?;-p?. I substituted 1N4002s off the 6.3 vac winding for the 1.5 volt battery. Uniprobe is the...RodB — 05:50 PM
Eico 232 VTVM Schematic
Try BAMA for a schematic. Looks like a replacement power source for the D battery has been installed. The tube may be...Chas — 04:51 PM
Eico 232 VTVM Schematic
Is that a battery holder?morzh — 04:43 PM
Eico 232 VTVM Schematic
A friend gave me this Eico 232 VTVM and I'm having trouble locating the schematic for it. This one seems to be a later v...RodB — 04:17 PM
Var resistor id
Considering what it is in series with, I doubt there should be any power requirements. Of course, we should know wher...morzh — 03:23 PM
Var resistor id
Trim pot, about 1/2 watt part of focus divider. As stated 2k ohms. This appears to be a rusty chassis, resolder all ...Chas — 03:19 PM
Var resistor id
Its a Sylvania 400 oscilloscope. here is a clip of r-100. Would be nice to know the current required. Not listed in part...Martinj — 02:10 PM
The list of my radio & TV collection!
Thanks Richard. I hope you enjoy it. Here I have created an English section on the history of radio with videos in Engl...RadioSvit — 10:23 AM
The list of my radio & TV collection!
Hello RadioSvit, first all happy new year ! I will watch your new videos this week. Sincerely Richardradiorich — 09:19 AM

[-]
Who's Online
There are currently 8839 online users. [Complete List]
» 1 Member(s) | 8838 Guest(s)
Avatar

>