R-51 VCA/Distortion

The R-51 is unique and never before available in any form.

It uses two 7-pin miniature pentodes, type 12AW6, and can accept 12AF6, 12AU6, 12BA6, 12BD6, and several other pentode types (or pentagrid converters) with 12-volt heaters. No modification required.

Two CV inputs are available for controlling circuit distortion from less than 2% up to more than 40% (varies with individual tubes).

Two CV inputs also allow use of the R-51 as a conventional synthesizer VCA, with gain variable from less than -75dB to +5dB (typical). Both distortion and VCA features can be used simultaneously. This allows true vacuum-tube asymmetrical soft clipping to be applied to any waveform.

With suitable CV processing, the R-51 can be configured as a true vacuum tube gate, limiter or expander.
Draws 400 mA when first powered on, then the declared current draw.

• 150 mA +12V
• 150 mA -12V
• 0 mA 5V
• 25 mm Depth

This Module is discontinued.