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Tube Imp Review - INDISPENSIBLE FOR TUBE LOVERS

Posted

Thanks for the Review Howard

Sturdy and easy to use. Clear read out and consistent results. This tester will measure cathode-anode emission current, transductance and gain for double triode 6DJ8 and 12AU7 tubes, and their equivalents with the same pin(B9A socket)arrangement eg, 12AX7, 12AT7,6N23P,6N27P(don't put the anode voltage above 30V with this one),etc.
It does not deliver above 12 mA cathode current and so for 6DJ8 type tubes you need to extrapolate using the characteristic graphs for these tubes. It's easy enough and the graphs can be found on the web but a reference to this, or even better, a copy of the graphs in the instruction booklet, would have been most helpful. Comparison of the two sides of the tube is as easy as a flick of a switch.
An excellent and much needed product.