Dimensions
6 HP
Current Draw
32 mA +12V
18 mA -12V
? mA 5V
Price
$68 Price in €

This Module is currently available.

BLM JPJFET Saw Core Module

Saw Core VCO

MODEL: BLM JPJFET VCO
Analog Saw Core VCO
Width: 6hp
Depth: 1 Stack PCB. Skiff Compatible.
Current: -32mA, +35mA
Circuit type: Analog

What does this do?
This is an analog Voltage Control Oscillator that is Saw core based. It uses a JFET part inside to generate
the Saw wave. This is very similar to a famous Roland Vintage product, but this is using modern equivalent parts.
The 1V per Octave circuit is also not transistor based. It is using a modern VCA circuit for 1v/octave tracking.
The 1V/octave circuit is also using the recent Op Amp OPA1678. OPA1678 has 110db Noise Floor, and 0.0001% THD.
The power rail capacitors are Tantulum type, and the timing Capacitor is a 2% 4.7nF through hole film type.
0.1% Reference voltages were used for the tune and fine tune.

Wave Outputs: Saw wave, Pulse Wave. Both are operating from 0v. -5v/+5v (AC signal)
Pulse Wave has a Pulse Width Modulation input.
Saw Wave is static, and the PWM does not do anything to it.

Modulation Inputs: Linear, and Exponential.
1. Modulation with Attenuator. Exponential Type.
2. Linear with Attenuator.
3. 1V/Octave Direct Input.

Hard Sync Input.
This requires a Positive Square Wave.
Softer AC wave forms will do a very soft sync effect.

Blow Out pricing while supplies last!

https://www.bluelanternstore.com/store/p84/BLM_JPJFET_VCO.html#/


submitted Aug 31st 2020, 18:12 by bluelantern

2 Users are observing this

Affiliate Disclosure
This page contains affiliate links from eBay, Reverb.com and other partners for which ModularGrid may be compensated.

USA

Perfect CircuitControlDetroit Modular

Australia

Found Sound

These merchants probably sell this module. Huh?