Equipment Autopsy 1970 GE Transmitter Pt1

In this weeks autopsy we explore a 1970 General electric television transmitter. The unit is rated for 60,000 watts and was removed from service a few months ago. It's complete and fully operational...at least, until we got it ;) Follow along and learn about capacitors, resistors, and high voltage broadcast engineering.

Category:

Science & Technology

Tags:

• The Geek Group
• Kalamazoo
• Chris Boden
• Transmitter
• Broadcast Engineering
• Science
• Technology
• Television
• Capacitor
• Resistor
• Ceramic
• High Voltage
• Wire lading
• Craftsmanship
• Design
• Learning
• Explore
• fun

[kildas]

where is next part? cant find it.

[lbochtler]

Next part pleas!



[barrybob32]

wasnt this worth a good amount of money, why would it be stripped down in such a manner like this, or are the parts all reused and whatnot?

[ruralmissouri]

Cabinet 1 was the rectifier where 19,000 volts A/C was converted to DC to power the electron beam of the Klystron Power Amplifier tubes. In this cabinet were the various relays, circuit breakers, and control circuitry for the other various systems of the transmitter such as the external cooling system that circulated deionized water through the Klystron tubes and magnetic frames used to focus the beams then through a heat exchanger and serious of pipes and pumps, and fans.

[ve2zzz]

The big resistor labelled 206 (20 kilovolts @ 1 mA is a 20 mego-ohm 20 watt resistor.

It can be very useful to safely discharge large high voltage capacitors.

And if you hook-up a 1 mA milliammeter in series (cold side), you'll have a 20 000 volt voltmener, again useful to see if there's any residual voltage in a capacitor.

[XGCKrazyK]

A step back in technological history.

[XGCKrazyK]

And remember SAFETY FIRST Discharge all capacitors.

[XGCKrazyK]

DUDE!!! I want your job!

[sparkyprojects]

That long resistor, i had something similar that was used as probes for a substation, if it's made the same way it will be a string of standard looking resistors, you may find some silicone caulking in there too, but it's not a problem as i think there is only enough silicone to prevent vibration.

HAHA, i remember my days in telecomms installing telephone exchanges, we used loads of that waxed twine, much better than zip ties as you can fan out the wires better prior to installing the harness.