Alpha 99 Documentation 99 Schematics – Original Version 99_SCHEMATICS_1 99 Schematics – Late Tubedeck, Mains, HVPS 99_SCHEMATICS_V3 99 Tube Bias Adjustment 99_Tube_Bias_Level_Adjustments 99 Tuneup Procedure 99_tuneup 99 Parts list PARTS_LIST_-_ALPHA_99 Read more →