The Bob Moog Foundation Expands Their Archives With Unique Rensitron Keyboard


The Bob Moog Foundation has announced another unique addition to their Archives – Bob Moog’s earliest known keyboard instrument design, the Rensitron.

Moog founder Bob Moog created the Rensitron, a tube-based electronic organ, when he was 16 years old. It was commissioned by his music teacher at Bronx High School of Science, Hymen Rensin.

“The Rensitron offers a glimpse into some early ideas that would later shape Bob’s approach to electronic instrument design,” said Michelle Moog-Koussa, Executive Director of the Bob Moog Foundation. “It’s remarkable to see that level of creativity and technical aptitude already present at sixteen years old.”

In addition to the Rensitron, a check dated May 21, 1951 has been added to the archives. It is in the amount of $10.00, made out to Robert Moog from Rensin for payment for the Rensitron. The check is endorsed on the back by Moog. Moog’s hand-drawn schematic of the Rensitron also accompanies the instrument.

Here’s what they have to say about the unique piece of Moog history:

“The Rensitron is a vacuum tube-based two octave electronic organ, featuring hand-carved wooden mini-keys and a built-in 5-inch speaker with a hand-made stylized “R” speaker grille, all encased in a slanted wooden cabinet.

The front panel has controls for output volume, tone, and pitch using the classic R.A. Moog chicken head knobs, a preview of things to come. The top of the instrument features a Dymo Labeler tape that reads, “Rensitron,” along with a second label reading, ‘Electronic Organ Made For Mr. Rensin By Robert Moog May 1951,’ both in the same Dymo Labeler tape style as the early R.A. Moog modular systems.”

The Rensitron is the latest in a long line of rare, vintage Moog instruments added to the Bob Moog Foundation Archives, including an R.A. Moog Co. Model 201 theremin from 1954, an R.A. Moog Troubador theremin from 1962, two Moog modular synthesizers from 1967, Herb Deutsch’s Melodia theremin from 1961 and his R.A. Moog Co. Minimoog from 1971, a Musonics Minimoog, Gary Wright’s Moog Liberation keytar, the Moog Apollo prototype, the first Minimoog Voyager ever sold, and more.

The Bob Moog Foundation Archives is a vast and growing collection of over 15,000 pieces of historical materials related to the life and work of Bob Moog and those who worked with him. The Foundation protects and preserves these items to share with researchers, journalists, and museums, as well as featuring them in their own Moogseum, located in downtown Asheville, NC.

The Bob Moog Foundation is an independent non-profit organization, dedicated to carrying on the innovative legacy of synthesizer pioneer Bob Moog.

You can find out more about the Foundation at their site.

 

Music Thing Modular Workshop Computer Available As A DIY Project

 

 

 

 

The Music Thing Modular Workshop Computer, a multi-function module for Eurorack systems that can be instantly changed with hot-swappable program cards, is available as a DIY kit.

The computer was originally found in the Music Thing Workshop System, a compact modular that also includes a powerful analog toolkit. Now the Computer section is available as an 8HP Eurorack module.

The module has three pairs of inputs and outputs: Audio/CV, Pulses; and Precision CV for pitch.

There are also three knobs for controlling the computer and one 3-way toggle switch (ON-OFF-MOMENTARY).

The Workshop Computer loads programs stored on hot-swappable custom-made program cards. The Computer comes with seven program cards:

    • Reverb+ is an old-school stereo reverb with some useful utilities, including sequencing and MIDI.
    • Turing Machine is a random looping sequencer with two channels and multiple scales.
    • Simple MIDI turns the module into a USB-MIDI interface to send and receive MIDI.
    • It also comes with 4 x blank program cards which you can write with a downloaded file.

An overview video via DivKid:

Features:

  • Programmable Music Computer module with hot-swappable PGM cards.
  • Includes Reverb, Simple MIDI, Turing Machine and a blank card to add a program of your choice.
  • Growing library of PGM cards created by the development community.
  • Module Interface: 2 x Audio & CV in/out, 2 x precision CV in/out, 2 x pulse in/out
  • 3 x knob controls (1 x large, 2 x small)
  • 1 x 3-way switch (ON-OFF-MOMENTARY)
  • 6 x LED indicators to visualise program functions

The Music Thing Modular Workshop Computer is available as now as a DIY kit for £112.50 (Excl. VAT).

 

Knobula Introduces Drum Farm Eurorack Percussion Instrument


Knobula has introduced Drum Farm, a performance-focused Eurorack drum module that brings synthesis, sampling and effects together into a single, hands-on instrument.

Drum Farm features 16 drum models, 16 effects, and a 16-slot sample buffer. They say it’s built for fast, iterative sound design.

It offers a wide palette of percussion sounds, from physically-modeled drums and spectral cymbals to analogue-style voices, with subtle variation on every trigger.

The integrated sampler can capture everything you create, letting you build layered, evolving sounds or assemble custom kits on the fly.

All parameters are CV and trigger assignable, enabling fully generative patches or tight performance control. You can store 32 banks of sessions to microSD, including all samples and settings for fast recall.

Drum Farm is expected to be available in June 2026, priced at £449 GBP (including VAT).