Dating ampeg b15
Ampeg went through numerous ownership changes over the next two decades with Unimusic taking over in 1967, Magnavox in 1971, and MTI in 1980. Louis Music bought Ampeg in 1985 and finally returned some stability and respect to the brand.
The company also reissued the B-15N Portaflex with blue check covering in 1995.
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Much like all of Ampeg’s amps, the B-15 underwent constant change, and the B-15 was replaced by the B-15N in 1961.
In 1962, Ampeg updated the B-15N with a solid-state rectifier called the B-15NB and introduced their famous “blue check” vinyl covering to their entire amp line.
Oliver also borrowed a design from an old sewing machine where the unit would flip out of the cabinet.
The first Portaflex amp was formally introduced in 1960 as the B-15.
Also, do you know of where I could get a replacement Lucite plate? Art Pittsburgh, Pennsylvania Hey Art, Ampeg’s B-15 is one of my all-time favorite amps, not only because of its fantastic tone and universal application, but also because of its unique design and versatility.
Ampeg went back to a tube rectifier and changed to a printed circuit board in 1964 (B-15NC).
This model lasted until mid 1965, when they introduced the B-15NF with fixed bias tubes and a single-baffle cabinet.
One of the coolest features of the B-15N was the Lucite Ampeg panel that illuminated when the amp was turned on.
This panel sat in the middle of the head and it could be custom ordered with the user’s name engraved on it.