![]() ![]() The EZ81 and choke worked in conjunction with two 16 uf 450 volt smoothing capacitors to eliminate any residual AC ripple in the B+ supply. The original design for the sixties Vox AC-15 B+ (high voltage) DC power supply included a EZ81 full wave rectifier tube and a 8H choke. The chassis was mounted to the amplifier cabinet by four large machine screws. The tubes were mounted vertically to the bottom of the chassis. The hand wired tag strip was mounted to the inside of the chassis and the transformers and choke were bolted to the outside. The control panel was located at the top of the chassis. The steel AC15HW chassis had a "C" shaped cross section. An "Op/Mode" toggle switch allowed the amplifier to operate at either 7.5 or 15 watts RMS. The circuit design incorporated a "Bright" switch in the Normal channel, a "Hot/Cool" switch in the Top Boost channel, a "Master Volume" control and a "Master Volume Bypass" switch. The AC15HW was a two channel, point-to-point hand wired amplifier powered by three 12AX7 preamp tubes, two EL84 output tubes and a EZ81 rectifier. Introduced in 2010, the AC15HW1 and AC15HW1X were the first amps built by Vox since the mid seventies that featured true point-to-point, hand wired construction. No use on online auctions, eBay or Reverb. © 1996 - 2023 The Vox Showroom, all rights reserved. ![]()
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