God’s Box ‘Humpback’ Filter. Panel/PCB Set

From: £29.00 (Excl. VAT)

A Panel/PCB set for a 2-pole multimode filter reminiscent of the classic ‘SEM’ style state variable VCF. Special features include a hot rodded resonance circuit and increased frequency range.

ADD THE TWO CA3080 IC CHIPS REQUIRED BY TICKING THE BOX BELOW!

Free Silver Mica caps with every purchase!

Matched Pair of 2N3906 transistors

Rochester - CA3080AE IC - Reissued OTA Chip × 2

220pf Caps x2 (Silver Mica)

220pf Silver Mica caps x2 included free!

£4.00 (Excl. VAT)

Out of stock

Out of Stock

Description


 

The God’s Box ‘Humpback’ DIY module is produced exclusively in collaboration with Thonk.

The module is 8hp wide and is skiff friendly; 38mm deep.

Contents

  • Aluminium 8hp Eurorack panel – High Quality two colour Aluprint process
  • Red PCBs with ENIG gold traces

Description

The Humpback multimode voltage controlled filter is a 2-pole, CA3080 based implementation of the classic state variable architecture. The controls of the filter are as follows:

  • Filter cutoff – a hardwired DC voltage frequency control
  • CV inputs – two frequency CV inputs are included on the panel and controlled by attenutators.
  • Outputs – lowpass, bandpass, highpass and notch are available simultaneously
  • Signal input – one signal input is available on the panel
  • Resonance-resonance control is included and is hot-rodded to allow self-oscillation. In self oscillation the filter will produce a sine wave output.

Build Documentation

BUILD DOC, SCHEMATICS, BOMhttps://thonk.co.uk/documents/gbox/humpback/ 

Muffwiggler Build thread – https://www.muffwiggler.com/forum/viewtopic.php?p=1949692

Additional information

HP Size

Matched Pair of 2N3906 transistors

Weight 0.0008 kg

Rochester - CA3080AE IC - Reissued OTA Chip

Weight 0.0017 kg

220pf Caps x2 (Silver Mica)

Weight 0.0014 kg

You may also like…