Beauty of old electrical and measuring things, etc.

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SUMMARY

The forum discussion centers around the appreciation and restoration of vintage electrical devices and measuring instruments, particularly from the early 20th century. Participants share insights on specific components like knob and tube wiring, HP 651A Test Oscillator, and various antique light switches. The conversation highlights the beauty and craftsmanship of these devices, with members expressing nostalgia and sharing personal stories related to their collections. The discussion encourages others to contribute their own vintage finds, fostering a community of enthusiasts.

PREREQUISITES
  • Understanding of vintage electrical components, specifically knob and tube wiring.
  • Familiarity with the HP 651A Test Oscillator and its applications.
  • Knowledge of thermocouples, particularly Type J thermocouples.
  • Basic skills in restoring and maintaining vintage electrical devices.
NEXT STEPS
  • Research the history and applications of knob and tube wiring.
  • Learn about the specifications and usage of the HP 651A Test Oscillator.
  • Explore the principles of thermocouples and their calibration methods.
  • Investigate restoration techniques for vintage electrical devices and components.
USEFUL FOR

Electronics enthusiasts, vintage collectors, restoration hobbyists, and anyone interested in the history and craftsmanship of early electrical devices.

  • #511
hutchphd said:
(Type 201-A tubes)
It's similar to this Raytheon B-H vacuum tube, which I tested and still works (it's a little dirty until I get a chance to clean it up). What I think is cool is the 4-pin vibration proof socket:

BH tube.jpg
 
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  • #512
hutchphd said:
glass sphere which makes very nice coronal discharges.
Yep.
small IMG_3575.jpg

It's also cool how it induces these flicker bulbs to light.
flicker.jpg

The one on the left is very old.
 
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  • #514
Not electrical nor measuring, but still a beauty IMO.
small IMG_3592.jpg

small IMG_3593.jpg

It needs a little work; a new nose cone and a few holes.
 
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  • #515
What about the plane?
 
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  • #516
Here's what the engine looks like. I'm not sure what the fuel is; will have to do some research.
small IMG_3595.jpg
 
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  • #518
jedishrfu said:
Something like glow fuel?

https://en.wikipedia.org/wiki/Glow_fuel
Thank you Sir. That will help with me finding some. However I'm not sure I really want to try to start it. Might take off a finger. :(
 
  • #519
I saw some items on Amazon and there are some videos on YouTube to help. Here's the first one that popped up after a quick search.



You might be able to contact the channel owner about your specific plane too.

Fuel on Amazon:

https://www.amazon.com/s?k=model+airplane+fuel&ref=nb_sb_noss

I remember the fuel having a kind of sweet smell like a mix of kerosene and oil maybe? I figured to oil is needed for this type of engine.
 
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  • #520
jedishrfu said:
Fuel on Amazon:
Thank You
 
  • #521
Here's a couple photos of one of my beauties, wood and onyx with no wires:
small IMG_3599.jpg

small IMG_3600.jpg
 
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  • #522
Here's an old beauty I've had put back for a while and it actually measures something fairly fundamental.
IMG_3610.JPG


IMG_3611.JPG
 
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  • #523
Beautiful. My dad was a clock collector, and he had a couple that looked much like that. Who was the clockmaker?
 
  • #524
anorlunda said:
Beautiful. My dad was a clock collector, and he had a couple that looked much like that. Who was the clockmaker?
Only thing I can find is "Seth Thomas".
 
  • #525
@arnorlunda
Do you think it's rare or worth anything?
 
  • #526
dlgoff said:
@arnorlunda
Do you think it's rare or worth anything?
I'm not an expert on antiques or collectibles. But I think Seth Thomas is quality but not rare.
 
  • #527
anorlunda said:
I'm not an expert on antiques or collectibles. But I think Seth Thomas is quality but not rare.
Thank you. I did some google searching but couldn't find one like it.
 
  • #528
Here's another big beauty that's needing a lot of work (it does involve a little electricity):
plane-1.jpg

plane-2.jpg

plane-3.jpg
 
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  • #529
I got the old clock mounted with my other meters and gauges (which needs some glass cleaning).
clock mount.jpg
 
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  • #530
Looks nice on that wall. Looks like you're running out of wall space, though! :smile:
 
  • #531
Is it running? .does it keep good time?
 
  • #532
anorlunda said:
Is it running? .does it keep good time?
The hands are in a different position compared to the previous pictures, so I'm assuming it is running. I want to know if it chimes every 15 minutes... :smile:
 
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  • #533
berkeman said:
Looks nice on that wall. Looks like you're running out of wall space, though! :smile:
I am. Had to use one of my book shelf stands in my storm shelter for the radios in there. Now I've got stacks of books in the spare bedroom. :oldcry:
 
  • #534
anorlunda said:
Is it running? .does it keep good time?
It runs for a while then stops. I'm going to open the clock mechanisms and do a little cleaning, etc. It chimes okay if you manually set the hands.
 
  • #535
berkeman said:
I want to know if it chimes every 15 minutes...
No. Only on the hour. Thank goodness.
 
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  • #536
dlgoff said:
It runs for a while then stops. I'm going to open the clock mechanisms and do a little cleaning, etc. It chimes okay if you manually set the hands.
The effective way to clean a clock works is in an ultrasonic bath. That would mean removing the works and finding someplace to send it off for cleaning. That may be more effort than you care to invest.

It is easy to overlook the time, trouble and expense that prior generations had to spend to keep their mechanical timepieces functional.

Edit: That reminds me of another thing I miss from my years on the boat. The ships clock, sounding up to 8 bells every watch became an important part of our lives.
 
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  • #537
anorlunda said:
Is it running? .does it keep good time?
I've gotten it running great. It looses just about 30 seconds/hour; I'll shorten the pendulum length a little. There's a very fine thread screw built into the hanging mass:
pendulum.jpg


Once I got the hands in the right position for the chiming, it has chimed the correct number of time every hour.
 
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  • #538
anorlunda said:
The effective way to clean a clock works is in an ultrasonic bath.
I have an heated ultrasonic cleaner that I use on my optical project; which had been neglected for a year or so, but I've already got it going without much cleaning. (See above post)
 
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  • #539
dlgoff said:
I have an heated ultrasonic cleaner that I use on my optical project; which had been neglected for a year or so, but I've already got it going without much cleaning. (See above post)
Very cool. A while back, I was doing some research into mechanical wind up mantel clocks, and I finally learned from a youtube video the reasoning behind "don't apply too much oil to a clock". I just always thought it was to keep things neat and clean (pride in workmanship), and to avoid accumulating dust that might work its way into the bearing.

But it was explained that just the right amount of oil was enough so that the surface tension held the oil drop in place, clinging to the bearing. This kept it oiled for a reasonably long time. If you applied "too much", it would run out, break the surface tension, and you ended up with less oil in the bearing. So a little counterintuitive, but I think Mies van der Rohe would agree "Less is More".

Maybe this is common knowledge, but it was new to me.
 
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  • #540
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