From the Workbench

With Chris Ratcliff

A mysterious smoking Philips Model 167

This repair became “Perry Mason and the Case of the Smoking R12”. What happens when a well meaning hobbyist makes some unexpected changes to the internals of this Philips model 167 - and creates a fault-finding mystery to be solved!
Click here to see (and download) the worksheet for this repair. It also includes the circuit diagram.

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