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

40-200 Push Buttons
#2

Depends. We need to figure out which isn't tuning properly. Use a counter or another receiver to track the local oscillator frequency and see if it's tuning low enough ( it should be 455kc above the in coming signal . To receive a signal @ 560kc the osc should be running @ 1015kc). If that isn't working properly check 23 and 24 for correct tolerance. This is assuming that the switching and wiring is as it should be.

GL

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry


Messages In This Thread
40-200 Push Buttons - by drrenaud - 10-29-2018, 03:16 PM
RE: 40-200 Push Buttons - by Radioroslyn - 10-29-2018, 05:07 PM
RE: 40-200 Push Buttons - by drrenaud - 10-30-2018, 07:53 AM
RE: 40-200 Push Buttons - by Radioroslyn - 10-30-2018, 09:37 AM
RE: 40-200 Push Buttons - by drrenaud - 10-30-2018, 03:57 PM
RE: 40-200 Push Buttons - by jcassity - 10-31-2018, 09:25 AM
RE: 40-200 Push Buttons - by Radioroslyn - 10-31-2018, 10:25 AM
RE: 40-200 Push Buttons - by Arran - 11-01-2018, 04:14 AM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Philco 42-345 Restoration/Repair
Hi OSanders, Look carefully at the band switch. Turn it slowly and "wiggle" it around the desired band. ...MrFixr55 — 12:33 AM
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

[-]
Who's Online
There are currently 1083 online users. [Complete List]
» 1 Member(s) | 1082 Guest(s)
Avatar

>