Ameritron al 811 tube replacement instructions

ameritron 811a tubes
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ameritron al-811 with 572b
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572b tube substitute
ameritron al-811 service manual

Stage 1 - install tubes and burn-in · disconnect AC power; · remove cover; · check that HV filter capacitor have discharged and install a temporary jumper from HV+ of the ameritron al 811h amplifier with the supplied 811a tubes and with 572b tubes and details a procedure for replacement of existing tubes . Once you have the shaft removed, the next step is to remove the tubes and set them aside for safe keeping. Then disconnect the red high voltage wire from the It is perfectly acceptable to replace the 811 tubes with three or four 572B tubes in the AL811 or AL811H respectively to increase duty cycle and tube This page has information on how to check the AL-811H amplifier for problems The repair to the rear band switch and realignment is also included as wellUNPACKING INSTRUCTIONS. 1. Carefully lift the amplifier by the bottom cabinet edge out of the shipping carton. Place the amplifier on a firm, level surface 1. Carefully lift the amplifier by the bottom cabinet edge out of the shipping carton. · 2. Remove the twelve screws holding the cover on with a number 2