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Tektronix 575 neon lights
Tektronix 575 neon lights
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Old 23rd January 2019, 10:59 PM   #1
Duke58 is offline Duke58  United States
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Default Tektronix 575 neon lights

While replacing some bad capacitors, I accidentally touched two of the neon lights and broke the leads. (located right under the "T60," which is actually T601). What should I replace them with?

From what I can tell, these lights are used for troubleshooting, to tell you if there is voltage going through the circuit.

Neon Lights.jpg
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Old 23rd January 2019, 11:16 PM   #2
1audio is offline 1audio  United States
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Tektronix 575 neon lights
They are a voltage reference, probably about 180V, used for some circuit. You need to find the same type of neon lamp (there are variations with different trigger voltages) or a suitable Zener diode. Your first stop should be getting a manual which should describe that circuit.
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Old 23rd January 2019, 11:55 PM   #3
Bill_P is offline Bill_P  United States
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Location: New York, the vampire state
The manual identifies the neon lamp as type NE-23. You might find some on ebay. If not, try surplus sales at https://www.surplussales.com/Bulbs-I...BulbsNeon.html. Data for the lamps is attached.
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File Type: pdf NE-23.pdf (46.6 KB, 9 views)
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Old 24th January 2019, 12:07 AM   #4
Duke58 is offline Duke58  United States
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Outstanding! Thank you all.
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