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

Hallicrafters S-72
#10

The LO tracks pretty well, it's only off by perhaps 10 KHz at the top of the band. As I was going to sleep last night, I thought of something to try (can't really hurt much). I'm going to see if bending the plates out on the high end of the antenna section will give the edge I need. This is one of those tuners that's actually made to do that, with the slits every few degrees on the outside plates. Wish me luck.

I'll see if that will help (the resistor in the grid circuit). Just a bit tight in that part of the chassis, though. Interesting all this happens ONLY on the AMBCB.. the other three bands are actually very good.


Messages In This Thread
Hallicrafters S-72 - by BrendaAnnD - 09-25-2013, 09:36 AM
RE: Hallicrafters S-72 - by morzh - 09-25-2013, 11:10 AM
RE: Hallicrafters S-72 - by Radioroslyn - 09-25-2013, 06:13 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-25-2013, 08:33 PM
RE: Hallicrafters S-72 - by Arran - 09-25-2013, 10:14 PM
RE: Hallicrafters S-72 - by marty - 09-25-2013, 10:35 PM
RE: Hallicrafters S-72 - by Arran - 09-25-2013, 10:36 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-26-2013, 12:48 PM
RE: Hallicrafters S-72 - by Mondial - 09-26-2013, 02:19 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-26-2013, 06:03 PM
RE: Hallicrafters S-72 - by marty - 09-26-2013, 06:28 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-27-2013, 09:05 AM
RE: Hallicrafters S-72 - by marty - 09-27-2013, 10:28 AM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-27-2013, 03:43 PM
RE: Hallicrafters S-72 - by marty - 09-27-2013, 04:07 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-27-2013, 07:55 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-27-2013, 08:00 PM
RE: Hallicrafters S-72 - by Arran - 09-27-2013, 10:07 PM
RE: Hallicrafters S-72 - by Mondial - 09-27-2013, 10:40 PM
RE: Hallicrafters S-72 - by marty - 09-28-2013, 12:16 AM
RE: Hallicrafters S-72 - by marty - 09-28-2013, 12:24 AM
RE: Hallicrafters S-72 - by Radioroslyn - 05-14-2018, 11:51 AM
RE: Hallicrafters S-72 - by jcassity - 05-15-2018, 08:43 AM
RE: Hallicrafters S-72 - by Radioroslyn - 05-18-2018, 03:50 PM



Users browsing this thread: 3 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 5179 online users. [Complete List]
» 1 Member(s) | 5178 Guest(s)
Avatar

>