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Questions about tubes and gear that glows. FAQ

RE: "Start Up Flash"

It could be Mullard. But not all tubes that flash at startup are Mullards. US-made early-'60s CBS 12AX7A also flash on startup. And not all true Mullards will flash. Bogen did utilize Mullard stock, however...

A photo is necessary for a positive I.D.


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  • RE: "Start Up Flash" - opalize 12:44:27 11/06/24 (0)

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