Prices incl. VAT plus shipping costs
- Order number: 170067
Expansion board for the A-110-4 Thru Zero Quadrature VCO. The circuit increases the output level of the first oscillator version (made before October 2015) from approximately 3 Vpp to 10 Vpp. More recent modules, including the blue special edition A-110-4SE, have an amplifier built-in by default.
There are two ways to check whether the expansion board is suitable for the A-110-4 at hand:
- At the back of the front panel or on the circuit board of each Thru Zero Quadrature VCO is a sticker, informing about the production date. (MMYY – MM = month / YY = year.) If the module was made before October 2015, the upgrade is useful.
- New versions of the A-110-4 come with an IC named TL082, which is situated right behind the Cosinus connector on the circuit board. If such a component is present, the upgrade is unnecessary.
For upgrading an A-110-4 with the amplifier kit, basic soldering skills are required.
WIth a long trajectory building synths, MIDI keyboards and designing bespoke devices for music pioneers Kraftwerk, Dieter Doepfer decided to design his own modular synthesizer in 1995 based on existing electrical and mechanical specifications of lab equipment he used during his years at university. The official presentation of the system at 1996 Frankfurt Musikmesse caught everyone by surprise and created lots of interest. After Doepfer published the specifications on his website, many instrument designers and engineers saw the potential of the new Eurorack format. Doepfer continues expanding their catalog of over 200 modules (and counting), operating from their modest offices in the outskirts of Munich.