MORNING STAR OBSERVATORY
  • Home
    • Contact
  • Astrophotography
  • Observatory
    • New Observatory
    • Lancaster Dome
    • ExploraDome
  • Equipment
    • Accessories >
      • RA Drive Corrector
    • CCD Cameras >
      • Orion Starshoot Pro
    • Mounts >
      • Orion HDX110 (EQ-8)
    • Telescopes >
      • 1956 Questar 3.5
      • Astro-Tech AT6RC
      • Celestron C-11 XLT
      • Zhumell 152mm Refractor
  • Projects
    • C11 XLT Mods
    • Dome Automation
    • Orion SSPRO Camera >
      • Disassembled Views
      • Noise Reduction Mod
      • Temp Controller Mod
    • Ultima 8 Mods
    • Zhumell Refractor Mods
  • Non-Astronomy
    • Amateur Radio >
      • Accessories >
        • Station Boom Microphone
      • Ameco >
        • Ameco AC-1
        • Ameco OCM
        • Ameco PT-2
        • Ameco R5A
      • Vintage Equipment >
        • Knight Kit T-60 Transmitter
        • Heathkit SB-102 Station
      • Yaesu FT-817 >
        • Yaesu FT-817ND
        • LDG Z-817 Autotuner
        • Windcamp LiPo Battery
    • Antique Radios >
      • Building A Radio Workbench
      • Radio Dial Neon Clock
      • Radios >
        • Boat Anchor Radios >
          • BC-348N Receiver
          • Collins 51J4 HF Receiver
        • Eltz Radione 2
        • Knight Kit Span Master II
        • Panasonic RF-5000A
        • Silvertone Model 4465
      • Test Equipment >
        • Hickok >
          • Hickok 19X RF Generator
          • Hickok 225K VTVM
          • Hickok 288X RF Generator
        • Simpson >
          • Simpson Genescope
        • Supreme Instruments >
          • Supreme Model 385 Automatic
          • Supreme Audolyzer
          • Supreme Vedolyzer
        • Military Test Equipment >
          • BC-221-AF Frequency Meter
          • LM-21 Frequency Meter
          • TS-323/UR Frequency Meter
          • TS-505D/U VTVM
        • Other Test Equipment >
          • Tektronix 326 O'scope
        • Radio Analyzers >
          • Rider Chanalyst
        • Tube Testers >
          • Alternating Current Sink
          • Drug Store Tester
          • Hickok 550X
          • I-177 Tube Tester
          • MX-949 Adapter
          • Precision Model 10-12
          • Supreme Model 385
          • TV-3C/U Tube Tester
    • New Homestead >
      • 2015 - 17 Getting Started
      • 2018 - Log Home Progress
      • 2019 - Finishing Up
    • Star Trek Communicator

MX-949A/U Tube Socket Adapter Kit for the I-177

This is a "breakout' box that adds additional tube sockets to the I-177 tester. These can be a bit hard to find, but I stumbled across this one online and bought it before it could get away. It's dated 1953 and is in good condition except for the ceramic tube socket.  

Picture
The original paint only has a few minor dings and chips, not enough to justify repainting it. All it really needed was a good cleaning.

It's just what I need for the I-177 although there are still some newer tubes that can't or shouldn't be tested on the combo because of the 5-volt grid signal used by the I-177.


Picture

​There's no electronics inside this unit, just wiring from the tube sockets and octal adapter cable going to the numbered pins and jacks of the front panel.

​

The ceramic tube socket was cracked, which seems to be a common malady with these units, probably from over-tightening the mounting screws. I epoxied it back together and filled the cracks with a porcelain filler for appliances. 
Picture
Picture

Last update 9/28/2017
Powered by Create your own unique website with customizable templates.
  • Home
    • Contact
  • Astrophotography
  • Observatory
    • New Observatory
    • Lancaster Dome
    • ExploraDome
  • Equipment
    • Accessories >
      • RA Drive Corrector
    • CCD Cameras >
      • Orion Starshoot Pro
    • Mounts >
      • Orion HDX110 (EQ-8)
    • Telescopes >
      • 1956 Questar 3.5
      • Astro-Tech AT6RC
      • Celestron C-11 XLT
      • Zhumell 152mm Refractor
  • Projects
    • C11 XLT Mods
    • Dome Automation
    • Orion SSPRO Camera >
      • Disassembled Views
      • Noise Reduction Mod
      • Temp Controller Mod
    • Ultima 8 Mods
    • Zhumell Refractor Mods
  • Non-Astronomy
    • Amateur Radio >
      • Accessories >
        • Station Boom Microphone
      • Ameco >
        • Ameco AC-1
        • Ameco OCM
        • Ameco PT-2
        • Ameco R5A
      • Vintage Equipment >
        • Knight Kit T-60 Transmitter
        • Heathkit SB-102 Station
      • Yaesu FT-817 >
        • Yaesu FT-817ND
        • LDG Z-817 Autotuner
        • Windcamp LiPo Battery
    • Antique Radios >
      • Building A Radio Workbench
      • Radio Dial Neon Clock
      • Radios >
        • Boat Anchor Radios >
          • BC-348N Receiver
          • Collins 51J4 HF Receiver
        • Eltz Radione 2
        • Knight Kit Span Master II
        • Panasonic RF-5000A
        • Silvertone Model 4465
      • Test Equipment >
        • Hickok >
          • Hickok 19X RF Generator
          • Hickok 225K VTVM
          • Hickok 288X RF Generator
        • Simpson >
          • Simpson Genescope
        • Supreme Instruments >
          • Supreme Model 385 Automatic
          • Supreme Audolyzer
          • Supreme Vedolyzer
        • Military Test Equipment >
          • BC-221-AF Frequency Meter
          • LM-21 Frequency Meter
          • TS-323/UR Frequency Meter
          • TS-505D/U VTVM
        • Other Test Equipment >
          • Tektronix 326 O'scope
        • Radio Analyzers >
          • Rider Chanalyst
        • Tube Testers >
          • Alternating Current Sink
          • Drug Store Tester
          • Hickok 550X
          • I-177 Tube Tester
          • MX-949 Adapter
          • Precision Model 10-12
          • Supreme Model 385
          • TV-3C/U Tube Tester
    • New Homestead >
      • 2015 - 17 Getting Started
      • 2018 - Log Home Progress
      • 2019 - Finishing Up
    • Star Trek Communicator