All 6V6-GT listed here include 24 hour burn-in with the price of matched sets. All 6V6-GT include our 6 month replacement warranty. All types listed are direct replacement for 7408 used in hifi amps. 6v6gtgta7408 Tung Sol 6V6GT Power Tube Single New Production Tung-Sol 6V6GT from New Sensor. Due to thicker grid & plate materials, this tube will withstand the High Plate Voltages produced by many Guitar Amps. Smooth Top End, Rich Mids & a Well Balanced Band-Width. Tweed Amp Lovers Rave about these Tubes!! Tung Sol 6V6GT Power Tube Single tungsol6v6single$15.95 Tung Sol 6V6GT Power Tubes Matched Pair New Production Tung-Sol 6V6GT from New Sensor. Due to thicker grid & plate materials, this tube will withstand the High Plate Voltages produced by many Guitar Amps. Smooth Top End, Rich Mids & a Well Balanced Band-Width. Tweed Amp Lovers Rave about these Tubes!! Tung Sol 6V6GT Power Tubes Matched Pair tungsol6v6mp$33.95 6V6 Tesla/JJ (Slovakia) Single New heavy duty 6V6-GT from JJ Electronic in the Slovak Republic. Price is for a Single Tube. jj6v6single$16.25 6V6 Tesla/JJ (Slovakia) Matched Pair New heavy duty 6V6-GT from JJ Electronic in the Slovak Republic. Price is for 2 tubes (matched pair). 6v6JJMP$33.95 Triode Electronics Inc. 5633 W. Irving Park Road Chicago IL 60634 USA Ph 773-427-8823 (773-HAS-TUBE) Fax 773-327-5652 Open 10:30 AM to 5 PM CT Monday-Tuesday-Thursday-Friday