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

Model 640 restoration questions.
#6

Tad,

Yes, that was the one I referred to, the shadow meter bulb.

With the other one, it was a matter of completing the circuit to ground to get it to light. You can probably get a replacement socket with a mounting flange at a nearby electronics store (it's possible Radio Shack might have something that'll work), or Antique Electronics Supply for sure would have something.

Chuck has more detailed info on resistor wattages, but I can tell you the majority of resistors are 1/2 watt. A few in the power supply section will of course be higher. Avoid using 1/4 watt resistors on stuff this old.

Good luck!

Bill

Sent from my Pentium II on the AT&T Dial Network


Messages In This Thread
Model 640 restoration questions. - by Guest - 03-23-2007, 02:43 PM
[No subject] - by Chuck Schwark - 03-23-2007, 03:52 PM
[No subject] - by Bill Hutchinson - 03-23-2007, 03:58 PM
[No subject] - by Guest - 04-02-2007, 02:09 PM
The band that doesn't work...... - by AI2V - 04-02-2007, 07:48 PM
[No subject] - by Bill Hutchinson - 04-04-2007, 03:41 PM
[No subject] - by Guest - 04-05-2007, 08:09 PM
[No subject] - by planigan - 04-14-2007, 01:32 AM



Users browsing this thread:
[-]
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 1031 online users. [Complete List]
» 1 Member(s) | 1030 Guest(s)
Avatar

>