The CEM3340 VCO chip has been re-released as the Rev.G. It has also been cloned by CoolAudio as the V3340 and by Alfa as the AS3340. Any of these chips will work correctly in the designs above. We have all three chips available in the shop.

The AS Alfa 3340 VCO chip is Alfa’s modern version of the famous CEM3340 voltage-controlled oscillator. Now updated to the 3340a. The IC provides Ramp, Pulse/Square, and Triangle outputs, has inputs for hard and soft sync, is temperature compensated and stable, and provides excellent 1V/Oct tracking.

CEM 3340 Core Schematic Module. it only has 1 CV input, and 1course tune, however you can add more CV inputs if you want straight away, by simply adding another 100k resistor to a jack socket coming off pin 15 of the CEM3340!!!

The 3340 is the oscillator chip found in many of the famous polysynths of the analog era; the Sequential Prophet 5 and T8, the Oberheim OB-Xa and OB-8, the Roland Jupiter 6 and MKS-80, and even the MemoryMoog. It also turns up in rarer synths like the Crumar Spirit and the Synton Syrinx. Download CEM3340 Oscillator datasheet.

The legendary VCO Oscillator chip from the Roland SH-101 and MC-202, MemoryMoog, Sequential Prophet 5 and Pro-One, Digisound Modular, PAiA Proteus, Crumar Spirit, Oberheim OB-8, OB-Xa and OB-SX and many more!

The AS 3340 is a completely self contained, precision voltage controlled oscillator, featuring both exponential and linear control scales and up to four buffered output waveforms: triangle, sawtooth, square, and pulse with voltage controllable pulse width.

2018年6月6日 · The CEM3340 VCO chip is one of the legendary chips designed by Doug Curtis that played an important role in the analog polysynths of the 1980s. By integrating a complete analog VCO on a chip, it made more compact and cost-effective synth designs possible.

The AS3340 chip is Alfa’s modern equivalent of the famous CEM3340 voltage-controlled oscillator. It provides Ramp, Pulse/Square, and Triangle outputs, has inputs for oscillator sync, is temperature compensated and stable, and provides excellent 1V/Oct tracking.

2016年7月8日 · In June, CES announced that it was planning to re-release these rare chips in production volumes, starting with the CES 3340 VCO. The above video, via Gregory Cox, captures a comparison of new vs old CES 3340 VCO chips, running in a Oberheim OB-8 synthesizer. Here’s what Cox has to say about the video:

The CEM3340 VCO chip is one of the legendary chips designed by Doug Curtis that played an important role in the analog polysynths of the 1980s. By integrating a complete analog VCO on a chip, it made more compact and cost-effective synth designs possible.