Alfa Rpar AS

Alfa Rpar AS is an electronics factory in Latvia, founded in 1959. The company writes its name in all capital letters, AS indicates a joint stock company. In 2016 they started to produce synth and audio ICs, some of which were otherwise difficult and expensive to obtain.

Selected synth and audio products
This lists only those parts that are of interest to synth and audio DIYers.


 * AS194 - LM194 equivalent, matched NPN transistor pair in TO-5 and SOIC
 * AS394 - LM394 equivalent, matched NPN transistor pair in TO-5 and SOIC
 * К1100СК2 - Sample and hold in TO-5 and DIP
 * AS3364D - Quad VCA equivalent to AS2164 in DIP and SOIC
 * K140YD12 - Op amp in TO-5, DIP and SOIC
 * AS3080E - Extended CA3080 OTA in DIP and SOIC
 * AS13704 - LM13700 dual OTA equivalent in SSOP
 * AS3046 - CA3046 equivalent, matched transistor array in DIP and SOIC
 * AS3310 - CEM3310 equivalent, voltage controlled ADSR in DIP and SOIC
 * AS3320 - CEM3320 equivalent, VCF in DIP, QFN and SOIC
 * AS3350 - CEM3350 equivalent, dual state variable filter in DIP and SOIC
 * AS3109 - IR3109 VCF in DIP and SOIC
 * AS2164 - SSM2164 equivalent, quad VCA with exponential control response, in DIP and SOIC
 * AS3330 - CEM3330 equivalent, dual VCA with simultaneous log and lin control, in DIP and QFN
 * AS3360 - CEM3360 equivalent, dual VCA with either log or lin control, in DIP and SOIC
 * AS3340 - CEM3340 equivalent, VCO in DIP and SOIC
 * AS3345 - CEM3345 equivalent, VCO in DIP and QFN
 * AS3340-HYB - SMT AS3345F VCO mounted on DIP-16 PCB
 * AS3372E - Extended CEM3372 voice (mixer, VCF and VCA) in DIP and SOIC
 * AS3394E - Extended CEM3394 voice (mixer, VCO, VCF and VCA) in DIP and SOIC
 * AS3397 - CEM3396 based voice (waveshaper, VCF and VCA) in SOIC