Vox Series 90 V132 Preamp Head: Close Up
1969 - 1971
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The V132 Series 90 head was unique as it did not have a power amplifier or internal power supply and was incapable of operation unless connected to either a Series 90 V130 or a V131 powered speaker cabinet. The V132 amp head had two channels, reverb, tremolo, and an "E-Tuner."
The amp head was interconnected to the powered speaker cabinet using a cable terminated with an eight pin octal connector. The speaker cabinet not only included the power amplifier, it also supplied operating voltages to the head.
The back of the V132 Series 90 amp head featured black Vox diamond grill cloth and a horizontal Vox logo, similar to the styling of the Vox Supreme, Defiant and Conqueror amps introduced by JMI (UK) Vox in 1967. A wingbolt protruded from the center of the grill, as seen in the rear view of the amp head above. This secured the reverb pan against vibration while transporting the amp. If not removed before turning the amp on, the reverb would not function properly.
Dimensions and Weight: 8" H x 22" W x 10.5" D, 22 pounds
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Channel one, or the "Normal" channel, had two inputs plus a volume, treble and bass control. |
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Channel two, or the "Brilliant " channel, also had two inputs plus a volume, treble and bass control. Vox voiced the Brilliant channel with significantly less bass than the Normal channel. This decreased amount of low end response made the Brilliant channel sound more "trebly" than the Normal channel.
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The reverb and tremolo controls were positioned between the controls for the Normal and Brilliant channels. A rotary selector switch allowed the reverb and tremolo circuits to be directed to either the Normal or the Brilliant channel.
The 1/4" three conductor jack for the two button foot switch was also located in this area of the control panel.
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The right side of the control panel featured the Standby switch, the "E-tuner," and the power indicator lamp for the amp. The "Standby" switch allowed the amp to be left at idle when not in use. It also avoided the "thump" sound in the speakers when the amp was turned on.
The "E Tuner" generated an organ like tone that could be used as a tuning reference for a guitar.
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The Vox Series 90 V132 preamp head included this two button foot switch as an included accessory. The foot switch remotely controlled the Reverb and Tremolo effects. |
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The Vox Series 90 V132 preamp head also included this stamped metal clamp and wing bolt that was used to secure the amp head to the speaker trolley. |
 | Here is a closeup view of the wingbolt used to secure the suspended inner aluminum channel and spring delay line against the inside of reverb pan. This protects the pan against excessive vibration during transport. The wingbolt threads into the rear grill panel, as shown in the second photo above. The reverb pan is mounted to the inside of the grill panel. |
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A protective carrying cover with a carrying pouch was also included with the amplifier. |
North Coast Music offers many officially factory licensed replacement and restoration parts for the Vox V132
Series 90 amp head. Some are shown below.
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Photos and editorial content courtesy Gary Hahlbeck, North Coast Music
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URL: http://www.voxshowroom.com/us/amp/V132.html
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