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In the Forum: Melquiades Amplifier
In the Thread: R22
Post Subject: Tube current measurementPosted by deemon on: 1/3/2022
Hi Domidaw !
The first thing that we need to find out - is a REAL tube plate current at the moment when the R22 resistor starts smoking . I mean not a calculations that might be based on some faulty conclusions but a real current that an ammeter does show . What you need to do is to disconnect wires at the D testpoint ( tube plate ) and connect any reliable ammeter between them ( maybe a multimeter in "ampere" mode ) , turn the amplifier on and then tell us what current multimeter shows . All further actions will depend on a result of this measurement , of course ....Rerurn to Romy the Cat's Site