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

1929 model 87 help
#1

Hey all restoring a family heirloom. Cabinet just done looks great ! Now for the insides. I used nostalgia air. I will be replacing tubes. I'm fairly confident I can re cap. I figured I would do one at a time until I'm done. I need to know to align the unit. And how should I grease the dial shafts and various pivot points. Thanks! Btw I'm a newbie but mechanically inclined I and open to all advice and criticism.
#2

Hi and welcome to the Phorum!
I would use a pin point oilier to get into some of the tight places that require lubrication. Be careful around the dial drive cables there a bit of a pain to replace or reattach.
As for the caps you've got several in a big black metal can with tar to hold them in place. There is a few under the chassis  in a small metal inclosure. And last but not least 3 or 4 jobs that have resistors in series with them under the chassis too.
Wouldn't replace the tubes just for the fun of it the ones you have are likely to be ok. The alignment isn't difficult. Neutralize the RF stages and then peak them up at 1400kc or so. It's not uncommon for the primaries of the rf coils to go bad (open) but easy to rewind. And the audio driver to go open too. Not hard to find a replacement.
GL
Terry
#3

There are instructions either here in the tech section or on philco repair bench on how to align neutrodynes. Tells about how to make an adapter to disable the filiments to align each section.




Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Philco 41-608 changer coupler
3D-printing...short of machining, of course. Or molding.morzh — 05:20 PM
Philco 41-608 changer coupler
Thanks, Morzh. That solves the issue of the rubber pieces. Now, I need to find a way to replicate the pot metal piec...alangard — 05:07 PM
12' Philco
If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel. Kareem would have an e...morzh — 01:48 PM
12' Philco
And here's a story about the tires on the truck. Same "no-stoop" guy must have installed these! Take care a...GarySP — 01:17 PM
Hickok AC51 tube tester
I think they have only shown the secondaries of the transformer. Two of them feed the rectifiers' filaments.morzh — 12:58 PM
IF can wire size and Rubber mounts?
Arran If the wire inside cans is the gauges you mentioned, the sole reason for that would be mechanical, to stiffen t...morzh — 12:56 PM
12' Philco
Rod, Yes, I know, but the Giant Philco is not around anymore either, so I go by whoever was alive fairly recently. H...morzh — 12:54 PM
Hickok AC51 tube tester
Absolutely no one is going to reverse engineer that circuit. Even the iron core is missing.RodB — 10:37 AM
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

[-]
Who's Online
There are currently 5134 online users. [Complete List]
» 1 Member(s) | 5133 Guest(s)
Avatar

>