See photo below.Ĭircuit Design - The V1151 modular preamp section was originally designed for the Viscount and Buckingham series amps by Thomas Organ/Vox engineer Sava Jacobson. It added a two-piece closed back to the V1151 version of the amplifier. The distortion circuit was activated by a foot switch on a new four button remote foot switch. There was no control panel switch for the distortion effect nor were there any controls to adjust the intensity of the effect. The V1151 Viscount added a Distortion Booster, or "fuzz tone," to the list of features included in the amplifier. The V1152 Viscount included the same features found in the V115 amp (reverb, tremolo, MRB, Top Boost and Tone X) but the effects were controlled by a new three button foot switch that consolidated the previous two foot switches into one. The amp was rated 35 watts RMS, 70 watts peak into a 8 ohm load. The new amp retained the same three channel design as the earlier model. V1151, V1152 and V1153 Viscount Amplifiers - Introduced in June 1966, the second generation V1151 and V1152 Viscount expanded and refined the design of the previous V-15 and V115 models. When the MRB button was depressed on the foot switch, you could actually hear the clicking sound of the relay from inside the amplifier. A second single button "egg" shaped foot switch remotely controlled the MRB feature via an electro-magnetic relay located inside the amp. A two button foot switch with a 1/4" TRS (stereo) plug controlled the reverb and tremolo. Two separate foot switches were provided with the amp. These speakers were manufactured for Vox by the Oxford Speaker Company of Chicago IL. Two 16 ohm, 12 inch Vox Gold Bulldog speakers, wired in parallel to 8 ohms, were installed in the amp. A pair of tubular, chrome plated side swivel stands with casters, three Vox logo handles, six Vox logo vents, eight plastic "one pin" corners and a vinyl protective cover were included. The cabinet styling was patterned after the JMI Vox AC-30 amplifier, albeit somewhat larger. The "Normal" channel included a "Top Boost" rocker switch while the "Bass" channel featured a sweepable frequency tone control called "Tone-X." The three channel amplifier featured tremolo in the "Normal" channel, reverb that was selectable to either the "Normal" or "Brilliant" channel and MRB or "Mid Resonant Boost" in the "Brilliant" channel. The amplifier was rated 35 watts RMS, 70 watts peak into a 8 ohm load. V-15 or V115 Viscount Amplifier - Introduced in early 1966, the first generation V-15 and V115 Viscount circuits were electronically identical and documented on a single schematic from Thomas Organ. Thomas Organ introduced three generations of the Viscount amplifier between 19. No use on online auctions, eBay or Reverb. © 1996 - 2023 The Vox Showroom, all rights reserved.
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