1 x Plate current probe for testing anode current on most octal power tubes like 6L6 6V6 EL34 KT88 5881 6B4G

Dual probes available here: http://www.ebay.com/itm/282610340765?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

2 in 1 probes available here: https://www.ebay.com/itm/282672928476?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

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

Using the probe in conjunction ( one on top of the other ) with this probe: http://www.ebay.com/itm/282486634800?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649 allows the user to test the mutual conductance of the tube via the " grid shift " method 

NOT MADE IN CHINA

Shipping tracking provided.