Tiptop Audio / Buchla 245t Sequential Voltage

The Sequential Voltage Source 245t consists of two sections: pulser and voltage, while the Model 245t consists of two sections: stage.

The Sequential Voltage Source 245t consists of two sections: a pulser and a voltage stage.

■Pulser section
The basic operation is to output two clock signals to advance the stage of the voltage stage section to the next stage. The [Pulse (Output)] terminal outputs a pulse signal.
This pulse signal starts with a 10V/100μSec pulse, followed by a 5V pulse (gate). The pulse width is variable between 0-100% duty ratio and is determined by adding the control of the external CV to the setting of the [Pulse Length] knob.
The pulse period can be set from a few milliseconds to about 10 seconds by turning the [.002-10] knob. In addition, the period of the pulse signal can be changed by adjusting the polarity and level of the external CV with the [? - ?] attenuverter knob.
The [Ref (Output)] terminal outputs a descending sawtooth signal (descending from 10V to 0V) with the same frequency as the pulse signal.
Pressing the [Start] button outputs two signals, and pressing the [Stop] button stops it. You can also input a pulse signal to each input terminal.
When the pulser is stopped, pressing the [Stop] button again will output only one pulse.

■Voltage stage section
The basic operation is a 4-track x 5-stage (step) analog sequencer, and also functions as 4 CV memories.
The output is a gate signal (10V) and a CV (0-10V) that can be set with 20 knobs. When an active stage is activated, it outputs one gate signal and four CVs simultaneously. Therefore, it can be used as a (1+4) track x 5-stage sequencer, a CV memory that can save and output up to five patterns of the four CVs you have set, and a CV preset.
You can set the number of stages that will be activated by switching each switch in [Stage Select Inputs]. In addition, inputting a pulse signal to each terminal in [Stage Select Inputs] next to the switch will instantly activate the corresponding stage.
You can select any stage by inputting CV (0-10V) to the [Analog (Input)] terminal. The voltage range is approximately Off (0V-0.75V), Stage1 (0.75V-2.5V), Stage2 (2.5V-4.25V), Stage3 (4.25V-6V), Stage4 (6V-7.75V), and Stage5 (7.75V-10V).

Normally, the signal from the Pulser section is input to the [Advance (Input)] terminal of the Voltage Stage section to advance the sequence, but
you can input a descending sawtooth wave signal to the [Analog (Input)] terminal to move the sequence backward.

If you input the CV output of one track to the [? - ? (Input)] terminal of the internal time and adjust it with the knob, you can add effects such as syncopation and shuffle to the sequence instead of equal intervals.

You can create complex sequence patterns by inputting any gate signal (10V) to any of the [Stage Select Inputs] terminals.

[About the Buchla & Tiptop Audio ""Eurorack 200 Series""]
The ""Eurorack 200"" series was born from a collaboration between Tiptop Audio and the legendary West Coast synthesizer manufacturer ""Buchla"". The ""200 Series"", a very rare modular synthesizer developed about half a century ago, has been reproduced in Eurorack format. The Buchla module, the essence of West Coast style synthesis, is now available to many modern modular players. The Eurorack 200 Series will bring a West Coast feel to your modular system.

Width: 30HP
Depth: 25mm
Current consumption:
+12V: 63mA
-12V: 28mA