Steffcorp 2600 VCO – DIY Partial Kit

From: £48.00

Analog VCO based on the 4027-1 ’VCO-2’ oscillator used in the ARP 2600.

EU Price does not include EU VAT

DW2 - SPDT ON-OFF-ON Switch x 1 – optional

In stock

Thonkiconn Jacks with Knurled Nut × 10 – optional

In stock

SKU: Bundle_Steffcorp_2600_VCO Categories: , , , , , ,


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 21st 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 analysing and comparing modern parts to find the best matches for the original part specifications.

See the Operation Manual for more detailed info.

Note: This is partial kit containing:

  • 14HP Eurorack Aluminium Panel
  • PCB Set
  • LM3046M SOIC-14 Chip
  • 1.8K  SMD 0805 Tempco Resistor

2600 VCO – Build Guide | BOM


  • Frequency & Fine-tune
  • PWM
  • 2x FM
  • Attenuators for PWM and FM
  • 1V/OCT
  • Hard Sync
  • Saw, Pulse, Triangle, Sine & Hard Sync Outputs


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

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