Steffcorp 2600 VCO Eurorack Oscillator Module

The Steffcorp 2600 VCO is an analogue oscillator with full voltage control based on the 4027-1 ’VCO-2’ oscillator used in the ARP 2600.

It’s not just a copy however, we have gone to great lengths to bring it into the 21th century.

A much needed precision reference voltage was added, as well as buffers and a few other goodies.

Going SMT offered the means of improving the PCB-layout even further, as well as a selection of easy-to-source parts. No more treasure hunts and extravaganza prices.
On top of this, a good bit of time was spent on analyzing and comparing modern parts to find the best matches of the original part specifications.

Main controls

• Frequency & Fine-tune
• PW
• Attenuators for PWM and FM

Inputs

• 1V/OCT
• 2x FM
• PWM
• Hard Sync

Outputs

• Saw, Pulse, Triangle, Sine & Hard Sync

Technical

• 10V Precision Reference Voltage
• Power protection
• Buffered inputs & outputs
• Great Tracking
• FREQ control 0Hz – 10KHz
• FINE control +/- 6 semitones
• Power 46mA +12V / 36mA -12V
• Width 14HP
• Depth about 40mm