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turretslug · 11th Feb 2018, 3:33 pm

Definitely go along with being patient with a long, month + stretch in a warm, dry place before even thinking about powering. If there was ever a common weak spot with just about every CRT 'scope ever made, it's the EHT supply wound components- whether mains- or HF-inverter derived, there are many, many turns of fine wire with lots of volts between them just looking for an excuse for a burn-up and long-term humidity and lack of use encourage insulation degradation. A good excuse to knock up a lamp-limiter in the time and use a 60W or thereabouts bulb to ensure a gentle-wake-up stint before it gets full mains,

Good luck with it, Colin.

11th Feb 2018, 3:33 pm	#17
turretslug Dekatron Join Date: Nov 2011 Location: Surrey, UK. Posts: 4,393	Re: Oscilloscope not used in years Definitely go along with being patient with a long, month + stretch in a warm, dry place before even thinking about powering. If there was ever a common weak spot with just about every CRT 'scope ever made, it's the EHT supply wound components- whether mains- or HF-inverter derived, there are many, many turns of fine wire with lots of volts between them just looking for an excuse for a burn-up and long-term humidity and lack of use encourage insulation degradation. A good excuse to knock up a lamp-limiter in the time and use a 60W or thereabouts bulb to ensure a gentle-wake-up stint before it gets full mains, Good luck with it, Colin.