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

80 rectifier sideways?
#1

Hello all, I need to do some voltage testing on my 60, and I read somewhere that the 80 tube must be upright when the radio is on. Is this true? How is one supposed to check voltages if you can’t turn the radio on its side?
#2

I'll bet you read that on the internet. ;-)
#3

In normal operation, the 80 tube should be right side up. For a brief test, you may temporarily lay the chassis on its side. Just don't operate the set for hours in that position or there is a very real possibility of the filament sagging and touching the plate. The result? KA-BOOM! Shorted tube and burned out power transformer.

--
Ron Ramirez
Ferdinand IN
#4

Ron thank you!
#5

I think that the tube manuals suggest that you can operate a directly heated rectifier tube if it is oriented in a certain position, of course you could also check the voltages with the chassis upside down.
Regards
Arran
#6

Okay thank you! I’m in the process of restuffing all of the Bakelite capacitors at the moment. It’s actually not too bad. The tar scrapes right out when it’s heated up. Next will be the metal box labeled as “condenser bank”




Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
IF can wire size and Rubber mounts?
Thanks to both members for your help regarding wire and tuner mtg supports. regards--Johngeorgetownjohn — 09:33 AM
Hickok AC51 tube tester
Note that no power cord, power switch, or power transformer switch are shown. That (along with my experience with full s...DaleHCook — 07:09 AM
IF can wire size and Rubber mounts?
A pair of wire strippers can give you an idea of what the existing gauge of the wire leads are in the IF can, I think it...Arran — 06:07 AM
My last cabinet for this year
Hello Dan, That is really beautiful what great looking radio you have ! I have friends who live in Calgary and the wea...radiorich — 01:51 AM
Philco Predicta Siesta picture over time getting dimmer
I found that the wire insulation was burnt.  The fly back needs corona dope! Why would someone put that there?Platinumblonde36 — 01:09 AM
Philco Predicta Siesta picture over time getting dimmer
This is what it looked like beforePlatinumblonde36 — 01:01 AM
Philco Predicta Siesta picture over time getting dimmer
Platinumblonde36 — 12:58 AM
Philco Predicta Siesta picture over time getting dimmer
Platinumblonde36 — 12:57 AM
Philco Predicta Siesta picture over time getting dimmer
I'm finding some strange things in my set and for the most part it's also original, so I need to start going over everyt...Platinumblonde36 — 12:55 AM
12' Philco
Not anymore Mike. Andre The Giant Born: May 19, 1946, Coulommiers, France Died: Jan 28, 1993 (46 years), Paris, Fran...RodB — 11:53 PM

[-]
Who's Online
There are currently 4045 online users. [Complete List]
» 3 Member(s) | 4042 Guest(s)
AvatarAvatarAvatar

>