At the time i did not have anything like a valve tester, so after finding the circuit in a Bernards book, i built this, its simple, it has wander leads to select the valve internal connections, a largish meter, salvaged, with a no - middle good readout, its surprising it gives very good results, i will post the circuit later after i scan it to give you an idea of its setup.....Alan.
[attachment=384]
[attachment=384]
