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[QUOTE=vintagecollectDoes anyone have several thyrites or varistors I can buy from?? Please PM. I was hoping a few seconds would be good enough. Wouldn't this help promote a longer life for ALL tubes, including CRT?? I was looking into this also to limit as much surge current going to CRT as possible to try and extend service life. Does varistor go in power transformer primary circuit, or somewhere a take off in secondary, for a gradual power on for B+ voltages??[/QUOTE]
On the ctc-10 it is just wired in series with the main voltage coming out of the transformer and into all the filtering caps etc. Don't know if it would give longevity to any tubes, unless for some reason filaments are known to last a bit longer if they are brought up to full power slightly more slowly than instantly (?) Don't remember if the voltage for the filaments is even going thru the varistor to begin with, it may not be.
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