Compatibility varies depending on the app version. 1590 Hydraulic Driven Power Swing PTO S-Drive.Information on E-TUBE PROJECT compatibility is provided below. The Tube Holder will help restrict movement of the tube during the initial bending.1514 Manual Swing Electric Top Drive.

Place the tube in the appropriate sized die groove (1/4', 5/16' or 3/8'), making sure the end rests under the Tube Holder. See Figure 1 on reverse side of this Instruction Sheet. Once the tube is marked, swing the Bending Handle up above the Bender Die.

Also provides 10 troubleshooting flowcharts, voltage charts for typical amplifiers, and many modifications that you can do yourself.2. A well organized and easy-to-understand approach to guitar amplifier repair covering basic electronics, reading schematics, understanding tubes and transformers, tube biasing and use of test equipment.