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

Verify Model 71H
#6

Jim

The original electrolytics used on the Model 71 were made by Mershon. They have copper containers that look really cool when they are polished up. A spray coating of clear gloss Deft, after polishing, will preserve the polished look indefinitely.

I just looked at your 71 again...I see that the electrolytics on yours were replaced with aluminum can electrolytics. No surprise, really.

I do not normally go to all the trouble I did on my "Super" 71. But this chassis was originally a rust bucket. I cleaned it up, painted it, modified it to use a 6A7 tube as 1st detector instead of the original 36. Every wire is new. Every part is new save for the B-C bias resistor, the tuning condenser, antenna and RF coils, dial scale, on-off switch, tube sockets and power transformer. The volume control and tone control aren't new, but are not original to the set, either. The oscillator coil was completely reworked - and rewound - by me.

I put globe shaped tubes in this set where they could be easily seen, for appearance only. Note that the 39/44 tubes and the 6A7 are ST (taper-top) style. The 6A7 was never made as a globe, as far as I know. The 39/44 tubes were, but since they are hidden under tube shields, I used ST types. The 71 had all globe tubes when it left the factory in 1932, and of course they were all Philco brand tubes.

More details here:
http://philcoradio.com/phorum/showthread.php?tid=709
http://philcoradio.com/phorum/showthread.php?tid=1035
http://philcoradio.com/phorum/showthread.php?tid=1244

--
Ron Ramirez
Ferdinand IN


Messages In This Thread
Verify Model 71H - by Jim Ryan 76 - 09-07-2009, 06:45 PM
Re: Verify Model 71H - by Ron Ramirez - 09-07-2009, 07:37 PM
Re: Verify Model 71H - by Jim Ryan 76 - 12-15-2009, 02:12 AM
Re: Verify Model 71H - by Ron Ramirez - 12-15-2009, 11:25 AM
Re: Verify Model 71H - by Jim Ryan 76 - 12-15-2009, 10:56 PM
Re: Verify Model 71H - by Ron Ramirez - 12-16-2009, 09:37 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
1949 Motorola 5A9M
Haven't thought of Burgess batteres in a while  https://www.radionostalgia.ca/lib/Images/battery/us/burgess1D.jpgi ...Vlad95 — 03:50 PM
Philco Model 16 wiring question
Measure the voltages first, just in case.morzh — 02:19 PM
1949 Motorola 5A9M
Haven't thought of Burgess batteries in a while Mr. Fixer. Boston Edison always used Burgess in their Bright Star yellow...Paul Philco322 — 02:17 PM
1949 Motorola 5A9M
Thanks Sam. I'll let you know. I can probably scare some up from the local radio club.klondike98 — 02:07 PM
Philco 89 Code 123 Osc Coil
Hello,  I thought I would post my findings on my bad oscillator tickler coil. There were 27 turns on the outer coil b...dconant — 12:38 PM
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

[-]
Who's Online
There are currently 1142 online users. [Complete List]
» 1 Member(s) | 1141 Guest(s)
Avatar

>