m/277 Stereo High-Voltage Tube VCA / Overdrive / Preamp module for Euro Modular Form Factor

Before the jet-age transistor era with household names like Bob & Don was another, often overlooked era of analog synthesis made popular by folks like Laurens & Raymond. The “pre-war” technology’s sound has luminous qualities, quirks & artifacts befitting the high voltage glowing elements of glass which produce it.

With the vision of delivering this classic technology for analog audio synthesis to a form-factor designed for solid state bug sized chips of the 1960’s Trogotronic issued m/277 high-gain Vacuum Tube Stereo VCA without sonic compromise. Tube Harmonics, Bass-Heavy Compression & Stereo Imaging are applied with 2 Discrete High-Voltage VCA Circuits. The new v4 m/277 is entirely redesigned delivering higher voltage, dead-quiet crystalline performance directly from your euro-rack power supply.

Features:

• 2 Tube VCAs
• 2 CV Amplitude Inputs with Attenuator Knobs (1 per channel)
• 2 CV Drive Inputs with Attenuator Knobs (1 per channel)
• 1 CV Master Panning Input & Manual Knob Control
• 1 CV Master Panning-Drive Input & Manual Knob Control
• Ample gain for use as a Stereo External Input Preamplifier
• Zero to +5 volt CV-Range compatible w/most LFOs, Envelopes etc.
• Warm Tube-Harmonics
• Compression with Low-End Enhancement
• Compelling Stereo Imaging
• Pannable Stereo High-Gain Tube-Overdrive Effect
• Warms cold digital effects & low-voltage solid-state signals
• Optional High-Current Power Supply = low impact on your rack’s “built-in” supply
• 4 CV Lamps: 2 Blue (Amplitude A & B) / 2 Red (Drive A & B)
• 2 Psvane Max. Gain, Twin-Triode Vacuum Tube run at high-voltage
• Plug & Play Compatible w/ Alternate Tubes for Auxiliary Sonic Profiles

Demand on the +12v tap is 720mA for the first 10 seconds of warm up. Too much demand on rack’s available current? We have included an optional wall wart power supply which takes ALL current demand off of your rack’s +12v rail rendering a ZEROmA load on this rail when implemented!

Note: This is a used item, and while it is guaranteed to be fully functional it is almost sure to also contain "rack rash" on the mounting holes and have some minor scratches on the panel from use. It will include a ribbon cable, m3 screws, additional optional power supply, and a box, but not the original box.