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Twisted Electrons AY3 Oscillator Module

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The AY3 is a programmable sound generator (PSG) designed by General Instrument at the end of the 1970s. The AY3 gave voice to the Amstrad CPC, Atari ST, Intellivision, AppleII Mockingbird sound card, MSX, Vectrex, ZX Spectrum 128K. Many early 1980s Arcade Games used two AYs; the Gyruss arcade board had five!

The AY3 Eurorack module is the perfect solution to capture this piece of history in your rack with its slick & sturdy all-metal design and intuitive controls. The module can be set to 3 clocking modes: normal, helium (overclocked) and deep (underclocked), pushing the range of frequencies and sounds to the extreme. The AY chip brings with it a whole range of strict limitations which were embraced resulting in some highly unique forms of sound and music.


Osc 1+2:
- Osc 1 & 2 are detuneable and can be switched or arpeggiated.
- Use the tune knob to tune both oscillators within 1 octave range.
- The spread knob will increase osc2 pitch up to an octave above osc1.
- Chords: Turn the spread knob above 80% for 3 chords: Major, Minor, fifth. Only active when Arp is running!

With Arp Knob at 0% both oscillators play simultaneously. Above 5% osc1 and osc2 alternate for arpeggiator effects. (0.5Hz to 125Hz).

- Gate effect: When arp is above 5% and only osc1 is active (spread knob below 5%) osc1 will toggle on & off resulting in a gate effect.

- The trig input has two modes (selectable via a jumper at rear):
- Gate Mode: send a 5V pulse to turn Osc 1 & 2 on or off (5V=On 0V=off).
- Arp Mode: send a 5V pulse to clock the switch/arp (overriding the arp knob).

- Osc 3 outputs digital noise for sound effects.
- The pitch can also be modulated via the pitch jack (0-5v)
- The Osc3 gate can be opened and closed via the trig input (5v pulse) or held open via a jumper.

- MIDI in (3.5mm midi cable supplied)
- 2x Audio Out
- DC In (power supply suited for your region supplied)

  • 2 square oscillators
  • Spread oscillators 1 & 2 + 3 Arp Chords
  • Tuned noise
  • Noise Gate Pitch & Output
  • Arp/Switch Speed
  • Tune (1 oct range)
  • Dual function trigger, pitch & output
  • Noise pitch
Module Type Oscillator Module
Dimensions (mm) 40 x 40 x 128
Weight (g) 106

If you decide an equipment item is not suitable within 10 days of delivery, you can return it to us for a replacement or refund. Returns must be unused and in their original, undamaged packaging.

Some items are excluded from our money back guarantee, including:
• Computer software that has been unsealed or registered
• Any item that comes directly into contact with the nose, ears or mouth

To arrange a return, just contact our customer service department on 020 7424 2800 or email us at support@juno.co.uk

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