Integrated circuits
1 pcs.MN3204 512 Stage BBD DIP8The MN3204 is a 512 stage low voltage operational (5Volt) BBD that provides a signal delay of up to 25,6 ms at clock frequnecy 10 KHz and is suitable for use as reverberation effect of audio equipment.Mechanical Description:The IC is housed in a DIP 8 package and is designed for trughhole mounting on a circuit board.Practical information to MN3204:The IC is permanently soldered onto a circuit board. Replacement requires manual dexterity and soldering experience.ICs are sensitive to static charge!
Digital-Analog-Converter for audio application for Roland E-PianosPCM61P - upgrade to PCM56PThis part is used from RolandRoland     part number:15209160   Resolution:              18bitInterface:                   seriellConversion rate:           666kS/sNumber of DAC outputs: 2Number of channels:     1Case:                         DIP16warm-up time:            1 minMechanical Description:The digital to analog converter is housed in a DIP 16 package and is designed for classic through hole mounting on a circuit board. Use of a socket is possible. The DA converter has 2 x 8 connecting pins with grid of 2.54 mm x 7.62 mm.Technical Description:This D/A converter is a total compatible performance replacement to PCM56 DA Converter. The DA converter provides low distortion and typical differential linearity error is 0.001%. The interface is serial and provides a 18 bit resolution. The conversion rate is 666kS / s. For operation, no external components, such as temperature compensation or similar is required.It is a symmetrical supply voltage of +- 5V to +- 12V needed. Â
No longer available!Digital-Analog-Converter AK4396VF for audio application from AKM (Asahi Kasehi) - compatible with AK4393VF Resolution:              24bitInterface:                   seriellCase:                        VSOP28Mechanical Description:The digital to analog converter is housed in a VSOP28 package and is designed for surface mounting on a circuit board. The D/A converter has 2 x 14 connecting pins with grid of 0.65 mm .Technical Description:This D/A converter was developed specifically for use in audio applications. The interface is serial and provides a 24 bit resolution.  Â
1 pcs. IC Socket DIP 28 Gold for ICTechnical Hint:Mounting of this part requiers soldering. Â
1 pcs. IC PST518BSemiconductors and electronic assemblies are sensitive to electrostatic charge. Please observe the regulations on ESD handling.The exchange and return of semiconductors and electronic assemblies is excluded after opening the packaging.
1 pcs. IC IR9311Semiconductors and electronic assemblies are sensitive to electrostatic charge. Please observe the regulations on ESD handling.The exchange and return of semiconductors and electronic assemblies is excluded after opening the packaging.
1 pcs. SAJ410 - 7 Stage Frequency Divider ICOld stock - every single component has been checked by us for function. FeaturesClock frequency from 20Hz to 100KHz Package: QIL-14Pincompatible with SAJ110 Mechanical Description of SAJ410:The IC is housed in a QIL 14 package and is designed for trughhole mounting on a circuit board.ICs are sensitive to static charge! Handle with care.Semiconductors are excluded from exchange. Â
1 pcs. IC NJM2068LD EMX2000Semiconductors and electronic assemblies are sensitive to electrostatic charge. Please observe the regulations on ESD handling.The exchange and return of semiconductors and electronic assemblies is excluded after opening the packaging.
1 pcs. IC LC9007B-128 SHS10Semiconductors and electronic assemblies are sensitive to electrostatic charge. Please observe the regulations on ESD handling.The exchange and return of semiconductors and electronic assemblies is excluded after opening the packaging.
1 pcs. IC YM3029 DAC SY77,55,TG77,55Semiconductors and electronic assemblies are sensitive to electrostatic charge. Please observe the regulations on ESD handling.The exchange and return of semiconductors and electronic assemblies is excluded after opening the packaging.
1 pcs. IC YM2424 OPZ2 V50Semiconductors and electronic assemblies are sensitive to electrostatic charge. Please observe the regulations on ESD handling.The exchange and return of semiconductors and electronic assemblies is excluded after opening the packaging.
1 pcs. MN3102 BBD Driver DIP8Panasonic MN3102 CMOS Clock Generator/Driver for Low Voltage Operation BBD DIP8This IC is out of production. Mechanical Description:The IC is housed in a DIP 8 package and is designed for trughhole mounting on a circuit board. THis chip is pin compatible to Panasonic MN3009.ICs are sensitive to static charge! Handle with care.Semiconductors are excluded from exchange. Â
1 pcs. IC PWM GENERATOR YM3421-F HQ SERIESSemiconductors and electronic assemblies are sensitive to electrostatic charge. Please observe the regulations on ESD handling.The exchange and return of semiconductors and electronic assemblies is excluded after opening the packaging.
1 pcs.MN3207 1024 Stage BBD DIP8The MN3207 is a 1024 stage low voltage operational (5Volt) BBD that provides a signal delay of up to 51,2 ms at clock frequnecy 10 KHz and is suitable for use as reverberation effect of audio equipment.Mechanical Description:The IC is housed in a DIP 8 package and is designed for trughhole mounting on a circuit board.Practical information to MN3207:The IC is permanently soldered onto a circuit board. Replacement requires manual dexterity and soldering experience.ICs are sensitive to static charge!
Digital-Analog-Converter for audio application for Roland E-PianosPCM56P von Texas InstrumentsThis part is used from RolandRoland     part number:15209122   Resolution:              16bitInterface:                   seriellConversion rate:           666kS/sNumber of DAC outputs: 2Number of channels:     1Case:                         DIP16warm-up time:            1 minMechanical Description:The digital to analog converter is housed in a DIP 16 package and is designed for classic through hole mounting on a circuit board. Use of a socket is possible. The DA converter has 2 x 8 connecting pins with grid of 2.54 mm x 7.62 mm.Technical Description:This D/A converter was developed specifically for use in audio applications. The DA converter provides low distortion and typical differential linearity error is 0.001%. The interface is serial and provides a 16 bit resolution. The conversion rate is 666kS / s. For operation, no external components, such as temperature compensation or similar is required.It is a symmetrical supply voltage of +- 5V to +- 12V needed.
1 pcs. PCM54HP - Digital-Analog-Converter for audio application von Burr BrownThis part is used inKorg M1Korg T1Korg T2Korg T3  Resolution:              16bitInterface:                   parallelCase:                         DIP28warm-up time:            1 minMechanical Description:The digital to analog converter is housed in a DIP 28 package and is designed for classic through hole mounting on a circuit board. Use of a socket is possible. The DA converter has 2 x 14 connecting pins with grid of 2.54 mm x 15.24 mm.Technical Description:This D/A converter was developed specifically for use in audio applications. The DA converter provides low distortion and typical differential linearity error is 0.001%. The interface is parallel and provides a 16 bit resolution. It is a symmetrical supply voltage of +- 5V to +- 12V needed.
1 pcs. M5238AL Dual Operational Amplifier with low noise for audio applicationThis OP-Amplifier is downgrade compatible with:M5218ALMechanical Description:The Amplifier is housed in a SIP 8 package and is designed for trughhole mounting on a circuit board. The Amp has 1 x 8 connecting pins with grid of 2.54 mm.
EPROM für Yamaha E-PianosPROM#39This part is used inYamaha PF10Yamaha PF15    Â
1 pcs. PCM69AU Digital-Analog-Converter for audio application forResolution:              18bitInterface:                   seriellNumber of DAC outputs: 2Number of channels:     1Case:                         SOIC 20warm-up time:            1 minMechanical Description:The digital to analog converter is housed in a SOIC 20 package and is designed for SMD mounting on a circuit board. Use of a socket is possible. The DA converter has 2 x 10 connecting pins with grid of 1.27 mm x 7.4 mm.Technical Description:The DA converter provides low distortion and typical differential linearity error is 0.001%. The interface is serial and provides a 18 bit resolution. For operation, no external components, such as temperature compensation or similar is required.It is a supply voltage of + 5V needed.
1 pcs. SN74HC244NSR SOP20Mechanical Description:Technical Hint:Mounting of this part requiers soldering.Integrated Circuits are
1 pcs. BU4052B HEX Schmitt Trigger = MC14584Mechanical Description:The Multiplexer is housed in a DIP 14 package and is designed for mounting on a circuit board. The Logic Circuit has 2 x 7 connecting pins with grid of 2.54 mm x 6.6 mm.Technical Hint:Mounting of this part requiers soldering.Integrated Circuits are
1 pcs. Dual Operational Amplifier with low noise for audio application, Housing TO-99LM4562HAMechanical Description:The Amplifier is housed in a TO-99 package and is designed for trughhole mounting on a circuit board. The Amp has 8 connecting pins wit, aranged in a circle. Â
1 pcs. PCM1728E SSOP28Digital-Analog-Converter for audio application forResolution:              24bitInterface:                   seriellNumber of DAC outputs: 2Number of channels:     1Case:                         SOOP28Mechanical Description:The digital to analog converter is housed in a SOOP258 package and is designed for SMD mounting on a circuit board. Use of a socket is possible. The DA converter has 2 x 14 connecting pins with grid of 0.63 mm x 3.8 mm.Technical Description:The DA converter provides low distortion and typical differential linearity error is 0.001%. The interface is serial and provides a 18 bit resolution. For operation, no external components, such as temperature compensation or similar is required.It is a supply voltage of + 5V needed.
1 pcs. PCM1700U SOP28 Digital-Analog-Converter for audio application forResolution:              18bitInterface:                   seriellNumber of DAC outputs: 2Number of channels:     1Case:                         SOP28Mechanical Description:The digital to analog converter is housed in a SOP28 package and is designed for SMD mounting on a circuit board. Use of a socket is possible. The DA converter has 2 x 14 connecting pins with grid of 1.27 mm x 7.4 mm.Technical Description:The DA converter provides low distortion and typical differential linearity error is 0.001%. The interface is serial and provides a 18 bit resolution. For operation, no external components, such as temperature compensation or similar is required.It is a supply voltage of + 5V needed.
IC - Integrated Circuits as Spare Parts for Musical Instruments
In the field of musical instruments, there is often the problem that spare parts are no longer available. Support from manufacturers such as Roland, Korg, or Yamaha has long been discontinued. Especially from these manufacturers there are many analogue synthesizers from the 1980s or the 1970s, in which many special ICs were built in, which are no longer available today. Many of these ICs have not been produced for many years, they were discontinued by the suppliers years ago due to changed requirements and thus the decreasing demand, i.e. the suppliers announced that this or that component would no longer be produced in the future.
Obsolete ICs and transistors
In many cases, however, we are able to procure electronic components that have long been taken out of production.
Another possibility is to look for a suitable replacement type and use it instead of the original component. Although this often involves partial modification of the installation situation, it can save the cherished electronic musical instrument from an inglorious end in electronic scrap. However, for many components and integrated circuits that have long had "end of life" status, there are still stocks available worldwide. We have set ourselves the task of finding such stocks and making them available to the market.
Over the past years, we have built up good relationships with reliable suppliers worldwide. Through them, we obtain many ICs that have not been produced for a long time. We offer the chips you need for your repairs. Since we repair musical instruments such as electric pianos, synthesizers, workstations and keyboards in our specialist workshop, we know which ICs often break and are therefore needed.