VCO based on Curtis CEM3340 chip
http://www.synthrotek.com/products/modular-circuits/vco/This offer was fetched from reverb.com. You cannot contact the seller via ModularGrid. You have to visit their site.
Look up onSynthrotek VCO - voltage controlled oscillator Eurorack module - built from kit by me (experienced builder) - with power cable & screws.from original product description:--------------------------------------------------------The VCO is an analog voltage controlled oscillator with a wide frequency range and 8 trackable octaves. It uses the Curtis CEM3340 reissue chip, which is famous for its outstanding sound quality. This is the fully assembled version of the VCO.Features:Simultaneously available triangle, saw and square wave outputsFrequency range: 5Hz to 28kHzFM input and attenuation controlPWM input and attenuation control1V/o input, tracks 8 octavesSpecifications:Width: 4HPDepth: 53mmPower draw:+12V: 42mA-12V: 31mA

If you had an Unicorn Account you could see a chart with the price development of this module and the average price asked for this module.
About the Unicorn AccountDisclaimer: Modules listed for sale on the ModularGrid Marketplace are offered explicitly by their respective owners. ModularGrid is not affiliated to the sellers and takes no legal responsibility in any transaction. The internet is a rough place and fraudulent behavior can occur. Always prefer having Buyer Protection when you make a purchase using PayPal. Don't use Friends & Family unless the seller is your friend or family!