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Analog and Digital Techniques — Tools for Musicians, Composers, and Tinkerers Skip to content Store Audio Sniffer BA662 Clone bootlegMIC Codec Shield MICrODEC MIDIvampire-I MIDIvampire-II Mixtape Alpha rePatcher Stomp Shield x0x-heart Shipping FAQ Forums Wiki Projects & Tools Audio Sniffer Overview Assembly Wiki entry Forum BA662 Clone Black Box mods bootlegMIC Overview Assembly Wiki Codec Shield Overview Wiki Forum Floppy Audio Discussion Videos The Basics MICrODEC Overview Design Concepts Videos Assembly Forums Wiki entry MIDIvampire-I MIDIvampire-II Mixtape Alpha rePatcher rePatcher Wiki Stomp Shield Overview Assembly Wiki x0x-heart Learning Arduino Arduino ISP Analog Op-Amps: Part I Op-Amps: Part II Digital Input Matrix Scanning Switch per pin Subset of charliplexed Single multiplexed Shift register brigade Parallel-out shift register mux’d with uC Parallel-in shift register mux’d with uC 3 to 8 decoder mux’d with uC Latch mux’d with uC Dual shift register mux Extra microcontroller 3 to 8 decoder mux’d with shift register Serial I/O expander IC Shift register hacks How does a MIDI keyboard work? XMEM matrix scanning ATmega ADC ATmega ADC in-depth analysis PWM DAC Overview Dual PWMs Analysis Tutorial Synchronizing Timers Sensors Electret Mics Force Sensitive Resistors Piezos About Us « Older posts x0x-heart at Crowd Supply! By guest | Published: May 9, 2016 We are happy to announce that Crowd Supply is collaborating with to bring a fully assembled x0x-heart into your Eurorack modular synth. Up till now, we only carried the kit variety. So for those of you itching for acid (and not soldering iron burns), swing on by the x0x-heart Crowd Supply campaign and check it out! Posted in updates | Leave a comment My summer vacation, by guest. By guest | Published: October 3, 2015 Have you ever wondered how to get the lowest distortion out of an LM13700? Well i did, and now i regret it! i spent the entire summer ripping apart circuits, rebuilding them, scratching my head, building them again, and smacking the test equiptment until i finally understood what was going on under the hood. Seriously, it wasn’t healthy for me or my test equiptment. So, as a public service, i am posting the results here, so no one ever has to do this again. Minimizing Distortion in Operational Transconductance Amplifiers If you are interested in reducing the distortion in the LM13700, CA3080, BA662, BA6110, CA3280, or any other Operational Transconductance Amplifier (OTA), then this is the paper for you. Just click the link above, and you will be on your way to building cleaner VCAs in no time. And, as an added bonus, completely free to all of us, these methods also reduce the temperature drift of gain. Have fun, and as always, best of luck on your builds! Posted in updates | Leave a comment « Older posts Home Audio Codec Shield Audio Sniffer BA662 Clone bootlegMIC MICrODEC MIDIvampire-I MIDIvampire-II Mixtape Alpha rePatcher Stomp Shield x0x-heart Shipping FAQ Home About Us Recent Articles x0x-heart at Crowd Supply! My summer vacation, by guest. Codec Shields on Sale! Temperature Compensation of Analog Exponential Converters OML now distributing through SynthCube! Article Topics arduino avr floppy-audio getting started how-to ISP microdec modifications updates wiki 2016 Mail us: questions@openmusiclabs.com...