Dannysound Cali OSC & Thru Zero EN129 OSC with Thonk

Superbooth 2018 - Dannysound Cali OSC & Thru Zero EN129 OSC with Thonk Published on May 8, 2018 DivKidVideo

"Steve from Thonk takes us through the two new Dannysound west coast / Buchla style oscillators at Superbooth 2018. There's the Cali OSC based on the 258 with some new features and also the Thru Zero EN129 which is similar to a single oscillator from the famous 259 dual complex oscillator. There's more features and options, great sound and of course it will be DIY first and foremost."

Note this is the first post to feature Dannysound. Superbooth video above and one from Thonk on the Cali Oscillator:

Dannysound - Cali Oscillator (Thonk)

Published on Jul 24, 2018 Thonk Synth DIY

Available at Thonk

"The Cali oscillator is a new and improved version of the classic Buchla 258 waveshaping linear FM oscillator with an additional pulsewidth modulated output.

The oscillator features the classic Sine to Square and Sine to Saw wave shaping with dedicated CV control. The Cali Oscillator differs from previous versions of the 258 in that it has a 3-way position switch rather than 2-way. This new middle position features a bonus waveform that will shape from a pulse into a kind of triangular trapezoid shape. The shaping control is more unpredictable in this middle position – it can be thought of as an extra bonus waveform!

There are dedicated inputs for linear and logarithmic FM and the Cali also adds a Pulse output with it’s own width control and PWM CV input. The behaviour of the pulse output can be affected by the position of the waveform switch and wave shape control.

The module features Coarse and Fine frequency controls and an LFO mode, LFO range is accessed via an LED pushbutton that also acts as the LFO speed indicator – the button will light up when the waveform moves through its positive cycle.


Features:
* Sine to Saw/Square Waveform Output with CV over wave shaping
* Pulse output with voltage controlled PWM
* Linear FM with attenuator
* Logarithmic FM with attenuator
* Bonus ‘trapezoid’ output
* Coarse & Fine controls with LFO mode
* Genuine Rogan USA knobs (Hex keys included)
* All Through-hole build – no SMD components!
* Width: 12HP
* Depth: 42mm"

via Available at Thonk

"The EN129 Thru Zero Oscillator is an all analog triangle-core VCO specialising in frequency modulation. Analog thru-zero FM modulation produces a wide array of timbres particularly useful for bell like or percussive sounds. Frequency modulation can be precisely dialled in thanks to a dedicated input attenuator and v/oct offset control. Logarithmic FM is also available via it’s own dedicated input with attenuator and both FM inputs have an LED to indicate incoming voltages. Simultaneous analog wave outputs include: Sine, Triangle, Sawtooth, Square and Pulse wave with Pulse Width Modulation. The PWM control goes to zero at either end of it’s range, which is very useful for creating rhythmic sounds with voltage control. Furthermore the PWM control doubles up as waveshape modulation for the Sawtooth wave – gradually altering the waveform until it shifts half a cycle. The EN129 features Coarse and Fine frequency controls as well as an LFO mode. LFO range is accessed via an LED pushbutton that also acts as the LFO speed indicator – the button will light up when the waveform moves through its positive cycle.


Features:
Thru Zero linear FM
Logarithmic FM
Zero to zero pulse width modulation
Sawtooth wave shape modulation
Simultaneous outputs for: Sine, Triangle, Saw, Pulse & Square
Coarse & Fine controls with LFO mode
Genuine Rogan USA knobs (hex keys included)
All Through-hole build – no SMD components!
Width: 12HP
Depth: 43mm"