Phrogs Analog Filter

Other/unknown

Blue Lantern Modules Analog Diode VCF with Mixer, Decay Envelope and Wavefolding VCA

FEATURES:
LP24, LP12, BP12, BP24, HP12
MS-20 style diode resonance allows for waveshaping
Self-oscillates, tracks 1v/oct
2 channel input mixer with level controls
Decay envelope with CV out and attenuation to both VCF and VCA
VCA has switchable wavefolding and 3 inputs to manually patch different filter types together for unique combinations

https://reverb.com/shop/blue-lantern-modules-euro-format-synth-manufacturer-direct-outlet

What does this do?

This is an analog filter with a separate 3 channel mono mixer, and VCA combo. There is also an internal envelope generator with Decay. All this product needs is a VCO and a trigger signal to complete a mini voice.

The outputs on the filter are meant to be manually patched into one of the VCA audio inputs on the module to complete the mini voice. You can mix and match to create custom filter types.

The Feedback on the product 'Rez', is what makes this sound like an MS20 filter. There are diodes, used as a limiter, and also to wave shape when in self oscillation mode.

Five Outputs:

LP24 LP12 BP12 BP24 HP12

(20) Jacks.

Features:

-2 audio inputs with 2 level control knobs.

-Bi-polar FM for the filter.

-Mod input with level knob for the filter.

-FCV Filter CV direct input for the filter.

All CV inputs for the Filter are 1V per octave, Exponential.

Decay Output added to this 5u version.

-REZ CV

-VOLT CUT output. +5v/5v output. Used to remote control another filter, with the master 'Cut' knob.

-Internal Envelope Generator, with Level Sends to VCA and Filter.

-Separate VCA circuit, with 3 channel mono mixer input. Has Wave folder on the VCA. Selected by toggle switch.

-1 CV input for the VCA. 'VCV'.

-1 VCA output.

The filter will self oscillate into a sine wave and does track 1v per octave.

The Large Knob is a 10 Turn Precision type potentiometer. There is a toggle switch to select the smaller Black knob to use as a single turn Cutoff control. Use the smaller knob for faster manual sweeps. Use the Bigger Knob for finer, frequency (EQ) control.