Blue Lantern Lucky 7 - 24db SH01 Low Pass VCF/VCA // Full Walkthrough and Demo

video upload by Robots Are Red

Introducing Lucky 7 by Blue Lantern Modules. This is a 16hp 24db Low Pass filter based on the famous Roland SH01 filter from 1978. Along with the two input filter, this module includes a built in OTA based VCA with two CV inputs, authentic headphone feedback circuit, two subharmonics generators, built in noise, and a good handful of CV inputs.
Just patch a VCO and an Envelope and you are ready to go!

In the video we take a deep dive into each knob and CV input, listen to the filter in various settings, and even look at some feedback self-patching with excellent results.

The Video:

01:06 - Overview
03:00 - Deep Overview
04:15 - Subs
04:34 - Noise
05:03 - VCA
06:24 - Audio In 2
07:30 - Feedback
09:28 - Expo CV Input
11:13 - Rez CV Input
11:53 - FM CV Input
13:07 - Linear CV Input
14:19 - VCA Input 2
15:49 - The Filter
20:05 - Dirty Sine VCO
21:48 - Feedback Patching

via this auction

Model: BLM Lucky 7
Width 16hp
Current: +69mA -68mA
PCB Stack: 1 Level, Skiff compatible.

Module type: analog filter, sub harmonic generator, internal vca, white noise generator, (self) oscillator

What does this do?

This particular product is my take on the vintage analog filter found on the Roland SH1 Keyboard. Some key differences from the original
are low end correction on the resonance path (audio level would drop), with voltage control, and I used a modern exponential converter.

The bass frequency will retain nicely on this modern version. No more audio level drop. The 'RCV' can be used to simulate Band Pass sounding tones when used with audio rate external sources..

I also included the famous feedback patch that lucky users of the vintage keyboard would do. Users would patch from the headphone output back into the filter external input.
I duplicated the original discrete headphone circuity and internally patched it for you. All you have to do is turn it up with the 'FBK' knob. Small settings go a long way with this.
It can get strange with too much feedback, in a good way.

24db Low Pass Filter.

Features:

(2) Possible External Audio inputs.
(1) White Noise Generator, Switch Jack internally patched to AIN2 input jack.
(2) Sub Hamronic Generators taken from the SH101 circuitry. Both are accessible by level knobs.
(1) Voltage Controlled Rez, with auto low end level correction.
(1) 1V per octave 'Expo' input.
(1) Linear FM input. Best used during Filter Self Oscilation duties.
(1) Bi-polar FM Attenuinverter. Best used with an external envelope generator.
(1) Internal VCA with 2 possible CV inputs. VCA knob is a manual offset to 'open' the VCA.

What you get:
Mixer +WhiteNoiseGen +Subharmonics +VCF +VCA

All you need is a vco, and envelope generator to complete a compact analog mono voice.


If this was literally your first and only module, it is possible to make sound and noise for entertainment.

Price $225.00