Category Archives: recievers and tuners and guitar amps

A Quick Overview of Tube Testing…

Now I mention a number of times now of letting the equipment be the final arbitter of the tube’s merit. This is simply because some circuits are not super critical to the tube’s “measured” value, and there is no question there are some pieces of equipment that are very critical of having even acceptable tubes from the tester not being good enough for the circuit (I have a Dumont scope like the one in the “Raj Mahal” which is that way.). Conversely I have a tube radio chassis that has all 5 of it’s tubes test below the question mark, and yet reception is very strong, sound quality is as good as a typical table radio and everything works as it should. Continue reading

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Reciever/Tuner tweeks short of a full alignment.

While alignment gear is needed for a full FM alignment, what I describe deals with solely those FM recievers, radios and stereo tuners that have no problems with separation or with a single station appearing in multiple spots on the dial. Continue reading

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