I was working with my Teac the other night and before my eyes the beam on my scope
started to fade, and about 2 hours later it was gone for good.
Focus, alignment and functionality were all good until the end.
What am I dealing with with here, a bad CRT, or a bad voltage to the grid?
Anything else?
I have the service manual, the scope is a very simple split beam transistor 10Mz scope
from way back.
The INTENSITY/FOCUS circuit is relatively simple, the -1500HV is good
Attached is pdf of the pertinent area of the circuit diagram if anyone is interested.
Homer W Smith
CEO Lightlink Internet
started to fade, and about 2 hours later it was gone for good.
Focus, alignment and functionality were all good until the end.
What am I dealing with with here, a bad CRT, or a bad voltage to the grid?
Anything else?
I have the service manual, the scope is a very simple split beam transistor 10Mz scope
from way back.
The INTENSITY/FOCUS circuit is relatively simple, the -1500HV is good
Attached is pdf of the pertinent area of the circuit diagram if anyone is interested.
Homer W Smith
CEO Lightlink Internet
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