Fender Bassman 5F6-A Tube Amps Circuit.
The Bassman was designed for the first mass-production electric bass, the Fender Precision Bass. It was introduced in 1952 and discontinued in 1983. Up to until 1954, the Bassman amps had only 1 speaker (circuit 5B6), but it was the four 10″ speaker combination that came to be one of the greatest and most sought after amplifiers in history. The original series of 4×10 Bassman amps included the 5D6 (1955), 5E6 (1955), 5E6-A (1955-1957), 5F6 (1957) and 5F6-A (1958-1960) circuits.
