Review: Finale Audio F-7591 Power Amplifier | Wall of Sound | Audio and Music Reviews
7591 Vacuum tube Beam pentode 300 V 75 mA Number of pins (num): 7 Base: Octal Content 1 pc(s) | Conrad.com
7591A GE Beam Power Amplifier Tube. Designed for applications where high power output is required. New old stock. No longer available for export. MFR: GE SKU: 7591