Today, I have had an e-mail from Veaceslav in Moldova, asking what tests the MHSVT can do. This valve tester can do seven main tests sequentially and these are: -
Test 1: check heater filament continuity.
Test 2: check insulation between electrodes - cold.
Test 3: check heater - cathode insulation.
Test 4: check insulation between electrodes - hot.
Test 5: check reverse grid current is acceptable.
Test 6: measures emission indicating 'goodness' on a CRT screen.
Test 7: checks correct connection of each electrode to each valve pin.
Parameters for each test are set using the test card for a particular valve which is slotted into the rear of the tester.
A useful tester but for me, I prefer the AVO VCM series and this is what we use at Mullard Magic HQ.