2 in 1 Tube amp Bias tool Current and Plate Voltage test probe EL84 6BQ5 EL86

Description: 1 x Plate current / voltage probe for testing anode current / voltage on 9 pin tubes like EL84 EL86 PL84 6BQ5 etc. Unit is equipped with a gold plated Fujisoku function switch and gold plated banana plugs 1. Turn off your amp. 2. Remove tube 3. Insert probe 4. Insert black / blue banana plug in the COM jack of your multimeter 5. Insert red banana plug in the V,Om jack of your multimeter 6. Insert tube in the socket of the probe 7. Turn on your amp 8. Allow tube to warm up 9. For testing plate / anode current select " plate current " on the function switch of the probe 10. Set your multimeter to the mV range ( most common is 200mV ) You will get a direct reading in mA 11. For testing plate / anode voltage select " plate voltage " on the function selector switch 12. Set multimeter to the highest DC voltage available When done testing repeat in reverse from step No.8 If using a autorange multimeter steps No.10 and No.12 are not used. 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.

Price: 41.99 USD

Location: Yahinovo , Bulgaria

End Time: 2024-09-02T02:27:20.000Z

Shipping Cost: 0 USD