SINdrone - Quad Wien bridge oscillator (18HP - BLACK version)
Due to the compliance requirements of the European Union GPSR (General Product Safety) Regulations I am currently unable to ship to the following destinations: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland (including Northern Ireland), Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden. In addition, I am currently unable to ship to Norway, Iceland or Liechtenstein.
There is some confusion over what this means for micro-businesses, and I am keeping the situation under review. In the meantime, any orders (including custom orders) to these destinations will be cancelled.
THERE WILL ONLY BE 5 MODULES IN THIS RUN - WHEN THEY'RE GONE, THEY'RE GONE (until next time)
The Wien bridge oscillator is capable of generating sine waves with a relatively low degree of distortion - good enough that Dave Packard used a modified version of the circuit in 1938 to produce the HP200A audio oscillator. This version is a bit more modern - rather than using incandescent bulbs and vacuum tubes most of the heavy lifting is done by some dual-gang pots and Zener diodes
The SINdrone module contains four of these oscillators, at various base pitches.
The oscillators are not voltage-controlled by default - there are pitch and gain pots of each of the four oscillators, and each oscillator has its own dedicated output. There's also a 'mix' output which, as its name suggests, is a mix of all four oscillators thus allowing the generation of more complex waveforms.
The four oscillators have different ranges, from the low audio down to something that could be used as an LFO. Use them as modulation sources or sound sources in their own right. The mixed output can be used to create some interesting LFO waveforms.
If you fancy a bit of fun and games there are four breakouts on the back of the board which can be connected to a modulation source or, if you fancy implementing voltage control, an exponential converter or similar
18HP wide.