Acrosound
Acrosound Ultra-Linear II Mono Tube Amplifiers (Pair)
Mono blocks from the Philadelphia firm that named the ultra-linear circuit in 1951.
Vintage amplifiers
Between 2011 and 2017 the original magazine reposted amplifier listings it found interesting: a Bogen Challenger pulled out of a school, a pair of professional Altec amplifiers shipped from Japan, a Marantz Model 8 with its cage, a kit-built EICO that somebody's father never finished. Each post kept the seller's photographs and description, which is why the archive reads like a bench diary written by dozens of different owners.
This index lists every amplifier, preamplifier and crossover we could recover, grouped by maker. The sale details are gone: no prices, no shipping terms, no auction links. What remains is the equipment, the photographs and what the people who owned it had to say. Models marked with a red pilot lamp carry a note added in 2026 with dates, specifications and sources.
Type in the filter to narrow the list by maker, model number or tube type.
Acrosound
1Altec Lansing
3Audio Research
3Braun
1David Bogen Company
10Dynaco
2EICO
3Grommes-Precision
3H.H. Scott
4H.J. Leak & Co.
1Harman Kardon
4Heathkit
2Knight (Allied Radio)
1Luxman
5Magnavox
2Marantz
9Margules
1Mark Levinson
2McIntosh
13RCA
1Sherwood
1Stromberg-Carlson
2Western Electric
3Other makers
10Before you browse
Can I buy any of the amplifiers listed here?
No. These are archived listings from the old magazine with prices, seller details and links removed. Nothing on the site is for sale, and we cannot put you in touch with the original sellers.
What does the red lamp on a model card mean?
That the page carries a note added in 2026, with dates, specifications and the sources we checked them against.
How do I find every model that uses a particular tube?
Type the tube number, such as EL34 or 7591, into the filter above the list. It searches model names, makers and the short descriptions.



















































































