Alpha 91B
Documentation
91B Manual | Alpha_91b_Users_Manual |
91B Parts list | PARTS_LIST_-_ALPHA_91b |
91B Bias Level Adjustments (pdf) | 91B Bias Level Adjustments |
91B EBS Test | 99_91B EBS Testing |
91B Tubedeck Blower Replacement | 91B_blower_replacement |
Installing Dayton Blower Motor | Dayton_4M07X_On_Original_Bracket |
91B Tuneup Procedure | 91B_tuneup |
91B Screen Supply Repair Parts | 91B_Screen_Supply_Repair_Parts_List |
91B Screen Supply Resistor Replacement | 91B_R19_R20_replacement |
Alpha Amplifier Production Dates | Alpha_Amplifier_Production_Dates |
Amplifier Keying Specifications | Amp_Keying_Specs |
Hi are the top cover for a 91B available?
No, those were made in Bulgaria, where the 91B was assembled, in the 1990’s, none have been available for 25 years. The Alpha 99 covers look similar but do not fit the 91B.