SAMPLE HOLD & SLEW User Guide: Multi-function Eurorack Modulation, Noise, Internal & External Clock

video upload by AJH Synth Official

"The SAMPLE HOLD & SLEW is a 12hp Eurorack modulation source, featuring both sample & hold, track & hold, a restrict function, internal noise source with colour control that can also be used as audio, internal clock that can be sent to other modules, and external clock control. It also has a well-featured Slew section, with selectable slew up and down only, gate control to switch it on and off, linear or exponential response, and this section can be used completely independently from the rest of the module.
This module can function extremely well independently, having it's own built-in clock and noise source to generate random voltages. However, it can also serve as a master clock for a generative patch, or triggering a sequencer. Alternatively, it can be slaved to a sequencer's clock, the gate output of any CV controller/keyboard, or other modules, so that it can generate random voltages in time with the music, even allowing the slew (or glide) to be added to individual steps in a sequence or pattern. This module is brilliant for making sequences more interesting.
As a simple noise source the bi-directional colour control applies low-pass or high-pass filtering. This is also useful when used with the sample/track & hold to determine the range of random frequencies or voltages that will be generated, as is the Clipped noise feature, which creates more significant differences between each sample, and the Restrict control that limits how far each new generated voltage can be from the last. When also used with the Slew and Exponential features it can then generate a smooth, ever-changing CV signal, which is ideal for use in drone sounds, modulating a VCF, VCO, VCA, an LFO, and any other modulation or audio.

The AJH SYNTH Eurorack range consists of high-end modules, all hand-made in the UK, most of which are based on classic, vintage designs, authentically recreating the circuitry of much sought-after analogue instruments and technologies of the past, whilst greatly expanding them, and bringing them to modern Eurorack levels of convenience, limitless flexibility, and reliability.

Check out the AJH Synth playlists for module 'User Guides', and 'Patch of The Week' videos, which will be either performances or 'how to' guides, detailing functions/methods, and a range of sounds, some familiar, some less so, containing a patch sheet at the end to show you how to construct it for yourself.

Video by @DreamsOfWires

Index:
00:00 Intro
00:27 Overview
02:10 Module & Installation
03:23 Sample & Hold
04:15 Track & Hold
06:38 Internal Clock
07:28 External Clock
09:25 Slew Gate
12:49 Crushing Audio
15:37 Noise Explained
18:46 Clock Out as LFO
19:47 Usage Examples
24:04 Jam Session"