Mint Vintage Peerless A-100-A 100A Mono Vacuum Triode Tube AMP Amplifier. VERY RARE (approx 100 made). One of the greatest Triode Amps ever made. BEAUTIFUL, ORIGINAL, & UNMOLESTED PEERLESS A-100-A AMP, still retaining its beautiful, glossy Battleship Grey paint color and original components. The Tube configuration contains the coveted Peerless S-240-Q and R-480-Q transformers. FULLY & METICULOUSLY RESTORED by Electro Ross Blomgren (RJB) in Gardena, CA. Color: Battleship Grey (Original Paint). Model: Peerless Model A 100 A Amp. Year of manufacture: 1940s-early 1950s. Country of Manufacture: USA. Weight: Approx 30 lbs. Output per Channel: 17 watts – Mono. Frequency: 20-20,000 Hz. Tubes 6J7, 6J5, 6SN7, 5V4G, 6A5G. Transformers Peerless R-480-Q and S-240-Q Output. Excerpt from Audio Asylum. The Peerless A100A, a PP 6B4 or 6A5 amp, has some real technical attributes. First, this amp included a choke equipped passive EQ record compensation equalizer, but pre-RIAA. Altec’s engineers preferred pentodes up front for preamp and first amp stage duty. In fact, their amp front end definitely inspired Dynaco and must also be recognized as showing up here after the British Leak and soon to be seen Mullard front ends! It’s funny how some topology magically appears worldwide around the same time… Altec’s pentode is direct coupled to a 6J5, R-C coupled to a split load phase inverter 6J5, to a push-pull 6SN7, to push-pull cathode follower 6SN7, direct coupled to the center tapped choke loaded output triodes. With low overall feedback, they claimed 18W at less than 5% distortion. Which output tranny, you all wonder? The Peerless S-240Q, of course! Track Page Views With. Auctiva’s FREE Counter. The item “Mint Vintage Peerless A-100-A 100A Mono Vacuum Triode Tube AMP (Altec) Amplifier” is in sale since Tuesday, September 8, 2015. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “zapvintage” and is located in Los Angeles, California. This item can be shipped to United States.