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Re: Tektronix 465,NO Trigger


 

"It seems to be working with a good sine wave on both channels from the calibrator"

???

Is this the calibrator on the scope? If so, it should be a nice square wave. Are you using a scope probe?

Regards

----- Original Message -----
From: <john@...>
To: <[email protected]>
Sent: Thursday, August 16, 2018 1:18 PM
Subject: [TekScopes] Tektronix 465,NO Trigger


Greetings All, I recently purchased a 465 on Ebay UK, having now cleaned it up it's looking good, It seems to be working with a good sine wave on both channels from the calibrator, but the only way I can trigger the waveform is by very careful adjustment on the TIME/DIV control and the little red Knob in the center, I don't have a Trigger light ( the lamp in OK) so I presume that I have a Trigger fault. I have checked all the voltages and all are in spec.
Although I am fine when repairing Ham Transceivers I know nothing about Scopes.
Can any kind expert give me some suggestions as to what to test first ??
Thanking you in advance
John
mi0dfg

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