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"On time" meter for tube life, cartridge life, etc

Does anyone make an "on time" meter. I'm thinking of something that records the number of hours my pre amp stays on, so I can calculate the number of hours in the tubes. I know they're good for thousands of hours, but time passes, and I lose track of time. I wouldn't mind something to use that I could calculate the hours on a cartridge with either. I've a new Shelter 90X, and though I don't get nearly the time I'd like to listen to it, it would be nice to have a timer that I could record the number of hours that it actually contacts vinyl.
Thanks,
David
rolloff
3 responses Add your response
robm321
932 posts
 
How would that help since the time varies on the life of cart and tubes?
cincy_bob
270 posts
 
The VPI SDS turntable motor controller keeps track of the number of hours during which it supplies current to your turntable motor, which can give you a good measure of the number of hours on your cartridge.
rolloff OP
129 posts
 
Thanks Cincy Bob. I was actually thinking of upgrading my turntable power supply to the "Turbo" model. I have to look into the price comparison. My Oracle has the speed controls separate form the power supply, so I don't know if the VPI would work or not.

I know the hours vary on tube life, but as time goes by I lose track of time for that much more than I do for turntable use time.
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