Description
2 x Plate current probe for testing anode current on most octal power tubes like 6L6 6V6 EL34 KT88 5881. How to use. Turn off your amp. Remove tube Insert probe Insert black banana plug in the COM jack of your multimeter Insert red banana plug in the V,Om jack of your multimeter Insert tube in the socket of the probe Turn on your amp Allow tube to warm up Set your multimeter to the mV range ( most common is 200mV ) You will get a direct reading in mA Repeat in reverse all done Important: You are measuring ONLY plate current and NOT cathode current. EVEN MORE IMPORTANT!!!!: EVEN THOUGH YOU ARE DEALING WITH A FEW MILLIVOLTS' BETWEEN THE BANANA PLUGS ,IF THE CATHODE ON YOUR AMP IS CONNECTED TO CHASSIS ( PROBABLY IS ) YOU WILL HAVE THE FULL B+ POTENTIAL BETWEEN EACH OF THE BANANA PLUGS AND THE CHASSIS OF YOUR AMP. ALWAYS ALWAYS ALWAYS PLUG THE BANANA PLUGS IN THE MULTIMETER BEFORE SWITCHING ON THE AMP TO AVOID ELECTROCUTION. MOST IMPORTANT: DO NOT COME AND HAUNT ME IF YOU DO NOT FOLLOW THE ORDER GIVEN ABOVE Bias probes also available. NOT MADE IN CHINA Shipping tracking provided.