SENCORE MODEL TC-142 VACUUM TUBE TESTER - MIGHTY MITE VThis unit is a simple emission tester, great for culling out bad tubes quickly.It will test many of the tubes used in audio amplifiers today. It tests: 8 pin octals, 7&9 pin miniatures, nuvistors and 9 & 12 pin compactrons.Tubes it will test include: 5u4, 5y3, 6aq5, 6cl6, 6L6, 6sn7, 6v6, 12ax7, KT88, EL84 and more. The charts include listings for 1300 tubes.Besides testing for emission, it checks for gas / leakage and shorts.Used, tested, guaranteed fully working. Comes with original tube settings booklet, instruction booklet, copy of service manual.Shipping is $20 for FedEx ground. Sales to lower 48 states and shipping only.