1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)

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

Threaded Mode
Mystery
Jake Blake
Banned
Posts: 816
Threads: 25
Joined: Mar 2014
City: Louisville, KY
#16

12-30-2019, 08:29 PM
"Octals?"

Yes.... the larger glass tubes with the larger bases and up to 8 pins. Neither schematic that David just sent can be it...the one has 7-pin miniature tubes....the other has SIX octals...yours only has 5.   Icon_wtf
(This post was last modified: 12-30-2019, 08:38 PM by Jake Blake.)
Find
Jake Blake
Banned
Posts: 816
Threads: 25
Joined: Mar 2014
City: Louisville, KY
#17

12-30-2019, 08:35 PM
Hold the presses!

The "miniature" schematic also has octals listed below the miniature numbers.....never seen that before....so it might be your schmatic.
Find
David
Phorum Expert
*****
Posts: 1,269
Threads: 32
Joined: Jan 2014
City: Wellborn Florida
#18

12-30-2019, 10:15 PM
Jake take a look at the Hallicrafters series S-38D an S-38E  8pin vs 7pin tubes . the cabinets are different but the only real difference under the hood are the tubes. Marketing at its finest!! Have a Happy New Year.
Find
Jake Blake
Banned
Posts: 816
Threads: 25
Joined: Mar 2014
City: Louisville, KY
#19

12-30-2019, 10:23 PM
"Jake take a look. . . " 

Yes sir!   Icon_idea
Find
« Next Oldest | Next Newest »
Thread Closed




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
5U4 vs 5Z4 tubes
I think that RCA and GE introduced metal tubes in the USA in 1936.  I don't know if they were being made by RCA, GE or b...MrFixr55 — 11:20 PM
Philco 42-345 Restoration/Repair
Vlad95, Thank you for the stringing guides and wow there are so manyosanders0311 — 06:01 PM
5U4 vs 5Z4 tubes
A pre war Hallicrafters, and an early one too, very nice! 1936 is pretty early for metal tubes too, which would explain ...Arran — 05:58 PM
Philco 42-345 Restoration/Repair
Thanks Rod, "When you hear the background hiss and no station it usually indicates that the oscillator quit" ...osanders0311 — 05:52 PM
Philco 42-345 Restoration/Repair
RodB :beerchug:Vlad95 — 10:22 AM
Philco 42-345 Restoration/Repair
Vlad, you nailed it. Swiss and German roots.RodB — 09:54 AM
5U4 vs 5Z4 tubes
Well this is a Hallicrafters SX/9 circa 1936. No real issues so far although I dodged a real bullet with a cap that was...bridkarl — 07:59 AM
5U4 vs 5Z4 tubes
The pinout is the same but the 5U4 has a 3 amp filament, verses 2 amps or less on the 5Z4. I think that the pinout of a ...Arran — 12:04 AM
Philco 42-345 Restoration/Repair
By the way. osanders0311 Take a look here: Dial cord stringing Guides May be here you can fount correct string settin...Vlad95 — 11:15 PM
5U4 vs 5Z4 tubes
5U4 and 5Z4 almost identical. I think nothing happened if you left 5U4 instedad 5Z4 long time. Just heater current 5U4 ...Vlad95 — 11:02 PM

[-]
Who's Online
There are currently 1451 online users. [Complete List]
» 2 Member(s) | 1449 Guest(s)
AvatarAvatar

>
  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)