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July 9, 2020 - AS3340 PWM Stability Technical Note
Check out this new article from Alfa Rpar on a simple way to significantly improve the AS3340 VCO PWM stability.
June 15, 2020 - NEW! Coolaudio V2044A Filter Chip
We are now stocking the latest Coolaudio synth chip remake, the V2044A 4-pole filter.
June 3, 2020 - Improving AS3340 VCO PWM Stability
Alfa has published this new tip for the AS3340 VCO: Tip for Improving VCO PWM Stability
April 3, 2020 - New products from Alfa Rpar
We are now stocking many more great devices from Alfa Rpar including the AS3280 OTA, the new AS3350 Variable State Filter, the AS3394 voice-on-a-chip in DIL packaging, the AS3363 Three Channel VCA, and the AS3046 NPN Transistor Array.
March 30, 2020 - COVID-19 Operational Status
We are open and making daily shipments and we expect to continue making shipments without disruption. Although there have been some issues in our supply chain, we currently have plenty of stock of all our popular devices and CEfx modules. We continue to process orders from Ebay, Reverb, and our web site on a daily basis.
September 18, 2019 - NEW! Ornament & Crime CEfx Module
Announcing our latest CEfx module, the CEfx Ornament & Crime polymorphic CV processor/generator. This implementation of the famous o_C module brings powerful CV processing to your breadboard! Running the unmodified o_C firmware, this module gives you a dozen sophisticated CV functions to choose from with 4 CV inputs, 4 triggers, and 4 CV outputs.
May 22, 2019 - NEW! More great new chips from Alfa Rpar
Now in stock is the new Alfa Rpar AS3394 "synth voice on a chip" with VCO, filter, VCAs and more all on a single chip designed for digital processor control. We also now have the AS2164, Alfa's implementation of the venerable quad VCA with great specs and design improvements.
April 16 2019 - More discounts and pricing options
We have made many more discount levels available for direct purchase here on our web site. Many product now show 3, 4, or even 5 levels of quantity discounts. If you have any questions about pricing or discounts, please contact us!
March 1 2019 - NEW! CA3280 replacement - the new Alfa AS3280 Dual OTA now in stock
The new Alfa Rpar AS3280 is a modern remake of the CA3280 Dual OTA used in many classic audio devices. Considered the 'Cadillac of OTAs' for high performance low noise designs.
March 1 2019 - AS3340 VCO now available in SMT package
This very popular VCO from Alfa is now avaialble in an SOIC-16 package for new space saving designs.
February 14 2019 - NEW! Xvive MN3009 256-Stage (12.8msec) BBD Delay Chip
Introducing the new Xvive MN3009 BBD delay - a modern remake of the classic 12.8msec analog delay line used in many classic devices such as the Juno 106 and Roland HS60. Now available for preorder!
January 23, 2019 - NEW! Xvive MN3007 1024-Stage (51msec) BBD Delay Chip
Introducing the new Xvive MN3007 BBD delay - a modern remake of the classic 51msec analog delay line. Now in stock!
January 14, 2019 - NEW! Sound Semiconductor SSI2164 Quad VCA
We now have in stock the new and improved Quad VCA chip from Sound Semiconductor - the SSI2164. The datasheet is loaded with sample circuits and design notes.
December 19, 2018 - CEfx Technical Design Notes
All our CEfx modules now include full documentation including schematics and technical design notes.
December 1, 2018 - SALE! All CEfx synth modules are on sale!
From now until the end of the year all our CEfx modules are on sale for just $59, a 25% savings! Also on sale is our CEfx Starter Kit with everything you need to start experimenting!
November 21, 2018 - NEW! Announcing the Cabintech Experimentors Effects Series
Today we are announcing CEfx, a new line of synth and effects modules specifically designed for the experimenter, educator, self-learner, and hobbyist. These new modules provide synth and effects building blocks on a solderless breadboard system so you can mix in your own circuits, experiment, redesign, rewire, and try out whatever you can imagine! Modules currently include VCO, VCA, VCF, Headphone/Speaker, Power, and Euroack power adapter. Many more modules will be announced soon.
November 1, 2018 - Precision tuning the AS3340 VCO
Check out this new article on a simple and accurate 4-step tuning procedure for the AS3340 VCO.
October 5, 2018 - NEW! Quad OTA
ALFA RPAR's AS13704 contains 4 independent OTAs in a single 24-pin package with linearizing input diodes for higher input levels and a push-pull output stage.
October 5, 2018 - NEW! Ultra-matched transistor pairs
We now have available the ultra well matched NPN transistor pairs from ALFA RPAR. The AS194H and AS394H are junction isolated ultra well-matched monolithic NPN transistor pairs with an order of magnitude improvement in matching over conventional transistor pairs. Both are available in TO5 8-pin metal cans.
August 6, 2018 - Deckards Dream Revision 2 VCA Chip Kit
With the release of the Deckards Dream Revision 2 hardware BOM, we are now offering Deckards Dream (Rev 2) VCA Chip Package for Deckards Dream synth builders. This discounted pricing includes (35) Coolaudio V2164D VCA chips.
July 20, 2018 - Deckards Dream VCA+VCO Chip Kit
We are pleased to announce the Deckards Dream VCA+VCO Package for Deckards Dream synth builders. This kit includes (60) Coolaudio V2164D VCA chips and (17) ALFA RPAR AS3340 VCO chips. (Thanks to Laurent Modulow at Handmade Synthesizers for the mods needed to make the ALFA RPAR AS3340 VCO work properly in the DD voice cards.)
May 28, 2018 - NEW! ALFA AS3360 Dual VCA
A new low cost easy-to-use dual VCA, the ALFA RPAR AS3360 requires minimal external components, no trimming, and features both linear and exponential control inputs.
April 4, 2018 - NEW! Midas M8000 Ultra High Performance 8-Channel A/D Converter
Today we begin stocking the amazing Midas M8000. 8 channels of 192kHz, 115dB dynamic range A/D conversion in a single package! The Midas M8000 is the leading edge of high performance digital converters. Easy systems integration with either I2C or SPI control interfaces, and digital audio in stereo I2S pairs or a single TDM stream of all 8 channels.
March 5, 2018 - NEW! Xvive VTL5C4 Opto Coupler
We have expanded our stock of opto couplers with the Xvive VTL5C4.
January 18, 2018 - NEW! Synth chips from ALFA RPAR!
We now have in stock some of the long awaited synth chips from ALFA RPAR, the AS3340 VCO, the AS3320 VCF, and the AS3310 Envelope Generator. All are now available in DIL packages for DIY friendly projects.
January 11, 2018 - Xvive VTL5C3 now available for pre-order
Looking for those popular opto-couplers? They will be back in stock soon, you can pre-order now to reserve yours here.
November 3, 2017 - NEW! Cliff Electronics optical transmitter/receiver modules
We now have optical transmitter (FCR684205T) and receiver (FCR684205R) modules from Cliff Electronics. These modules support up to 16Mbps and can be used with ADAT or S/PDIF signaling protocols. With the Coolaudio V1401 and V1402 ADAT chips, a complete ADAT transmitter and receiver can be build with minimum component count.
November 1, 2017 - NEW! Coolaudio V3320 VCF
The new Coolaudio V3320 Voltage Controlled Filter chip is now available. This high performance filter features 4 independent configurable sections, low CV feed-through and low distortion. A perfect compliment to the V3340 VCO.
October 12, 2017 - Deckard's Dream VCA Package
This package of 60 Coolaudio V2164D VCA chips is specially priced for builders of Deckard's Dream analog synthesizer. Taking preorders now for delivery estimated for the first week of November. See the details: Deckards Dream VCA Package.
July 14, 2017 - Coolaudio V2164M Quad VCA is now back in stock
The ever popular V2164M (SOIC-16) VCA is back in stock after a several month shortage of this part. Note the new part has ambiguous pin-1 markings, please see V2164M (Rotated) Device Details for details on this packaging.
June 29, 2017 - NEW! V3340 VCO (SOP-16)
Now in stock is the new Coolaudio V3340M VCO. Currently only the surface mount package is available (we don't have a date for the DIL package yet). We are offering SOP-to-DIL conversion kits at-cost when purchasing the V3340M.
May 1, 2017 - Preordering now open for Coolaudio V2164M SOIC-16 Quad VCA
We are now taking preorders for the Coolaudio V2164M quad VCA (SOIC-16 package) with expected delivery dates in late June 2017. Note that we have the V2164D (DIL-16 package) in stock now.
January 3, 2017 - NEW! Xvive VTL5C3/2 Dual Element Opto Coupler
We now stock the versatile Xvive VTL5C3/2 dual element vactrol (resistive opto-islolator). This popular device made by Xvive Audio features high isolation, steep slope, good dynamic range, low drive current, and small light history memory. Perfect for noiseless gain controls, limiters, compressors, and many other applications.
Dec 12, 2016 - NEW! Coolaudio V2902 Stereo USB codec (PCM2902 equivelent)
Now you can build a stereo USB audio interface with high performance and minimal component count. The Coolaudio V2902 supports analog and S/PDIF (optical digital) input and output at up to 48kHz sampling rates. This single chip solution provides a full USB 1.1-compliant protocol controller. No software drivers are needed to work with Linux or Windows USB ports. Useful for building USB speaker systems, USB audio interfaces, etc. See all the details here.
Sept 14, 2016 - NEW! Coolaudio V411 Quad Analog Switch
We are now stocking the Coolaudio V411 quad CMOS analog switch. This quad SPST analog switch is easily controlled with digital logic and features low ON resistance, fast break-before-make switching, wide dynamic range, and single or dual supply operation. Great for audio switching/multiplexing, data acquisition, and communications systems. DG411 equivalent.
April 25, 2016 - Discounted FedEx shipping now available.
We are pleased to have completed an agreement with FedEx that allows us to offer discounted FedEx shipping services worldwide. On the checkout dialog you can choose from all the FedEx services that are available to your destination.
March 23, 2016 - NEW! Taking pre-orders for the new Xvive VTL5C1 opto-coupler.
We are now taking pre-orders for both the Xvive VTL5C3 and VTL5C1 opto-couplers. Delivery is expected in mid-April. Presale orders will have guaranteed stock reserved.
March 18, 2016 - Xvive MN3005 is now back in stock.
The wildly popular Xvive Audio MN3005 BBD is now back in stock! All preorders have been shipped.
March 4, 2016 - THAT 4315 Analog Engine is now available
Starting today we are stocking the THAT 4315 Analog Engine. This device with its onboard VCA and RMS-level sensor makes a great solution for building companders, limiters, noise gates, gain controls, and other effects. Very low power consumption allows for use in battery powered applications as well.
February 18, 2016 - Pre-orders for Xvive MN3005 and Xvive VTL5C3 expected delivery in April 2016.
We are taking preorders for the new Xvive VTL5C3 opto-coupler, and the popular Xvive MN3005 BBD delay with an expected delivery date in early April. As before, presale orders will have guaranteed stock reserved and will be shipped within 24 hours of vendor stock arrival.
February 2, 2016 - Coolaudio V2162 is back in stock.
We are now fully stocked with the Coolaudio V2164M dual low-noise VCA used on audio compressors, equalizers, and other circuits.
January 15, 2016 - A/B comparison of Xvive MN3005 and original Panasonic device.
Courtesy of Space-Cat Audio Technologies, check out the A/B comparison of the new Xvive MN3005 and the original Panasonic MN3005.
December 17, 2015 - Xvive MN3005 is now in stock. All pre-orders have been shipped
We are pleased to announce that the much-anticipated Xvive Audio MN3005 devices arrived today, a bit earlier than expected. All pre-orders have been shipped, and the MN3005 is now in stock for immediate shipment.
November 24, 2015 - Xvive MN3005 Delivery Dates
Xvive Audio has indicated that they expect the new run of MN3005 chips to be completed on December 20. Given shipping delays at that time of year, a conservative estimate is that we will be shipping preorders in early January. We will continue to take preorders and will ship within 24 hours of receipt of stock from Xvive.
October 26, 2015 - Coolaudio V2164D
The Coolaudio V2164D quad VCA is now back in stock in the popular dual-inline package. This packaging of the venerable quad VCA is very popular with hobbyists and prototype builders to avoid the hassle of manual soldering of the surface-mount (V2164M) package. Be sure to check out the quantity discounts on the ordering page.
September 24, 2015 - NEW! Xvive Audio MN3005
We are please to announce that starting today we are taking pre-sale orders for the new Xvive Audio MN3005 analog BBD delay. This is a modern remake of the classic Panasonic part that achieves the same level of performance as the original. Shipments of presale orders are expected to begin the first week of November, presale orders will have guaranteed stock reserved.
June 3, 2015 - Guzunty is back in stock!
We are happy to have a new supply of the Guzunty Raspberry Pi I/O Expansion kits. We make these kits available at-cost as a public service to promote education, learning, and experimentation. These kits include the Xilinx CPLD and everything you need to build your own Raspberry Pi expansion board. See the Guzunty Project page, and our Guzunty Tutorials on using VHDL to program the Guzunty Xilinx CPLD.
May 11, 2015 - NEW! Expanded Coolaudio line
We have expanded our lineup of Coolaudio chips. We now have the full line of Coolaudio VCA (Voltage Controlled Amplifier) devices including the very popular quad V2164 in both surface mount and inline packages, and the ultra low noise V2181 VCA. We also expanded our selection of the Coolaudio BBD chips to include the V3205, V3208, and V3207 BBD delay lines and the V3102 clock generator. These are very economical devices for analog delays, in stock and ready to ship.
January 9, 2015 - Guzunty VHLD Tutorial
We have made available a series of free tutorials on programming the Xilinx CPLD in the Guzunty I/O expansion kit. The first tutorial walks you through the installation of the Xilinx ISE development tools, and the second shows you step-by-step how to create a simple VHDL design and program it into the Guzunty. Future tutorials will show you how to implement clocked designs and work with additional Raspberry Pi interfaces.
March 24, 2014 - Coolaudio for hobbyists
Purchasing Coolaudio devices in small quantities for experimentation and prototypes has been difficult, so we are making available for purchase a number of Coolaudio devices including the hard-to-find V1401 and V1402 ADAT optical tranceivers. With a bulk purchase we have been able to keep the per-peice price down and finally make these devices available at reasonable rates for hobbyists and small production runs. We have no minimum order and we can ship anywhere in the world. We hope to be able to make other Coolaudio devices available in the future.
November 14, 2013 - Guzunty Project Kits
We are proud to support the open source Guzunty project by making complete Guzunty kits available in the US at-cost. This Raspberry Pi I/O expansion kit is great for experimentation (while protecting the I/O pins of the Pi) and for learning about hardware design by programming the CPLD in VHDL. We are making these kits available at-cost as a public service to help promote education in the fields of computer system design and hardware.
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