Integrated circuits
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.
1 pcs. Coolaudio V3102 BBD Driver DIP8Rebuild of the MN3102 BBD Driver from Panasonic. We think that it is a 1:1 clone from original Panasonic Chip.This 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. Digital-Analog-Converter for audio application for Roland E-PianosPCM56P This 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. Practical tips:These part is firmly soldered to a circuit board. For replacing craftsmanship and experience in soldering is required.Please be carefull because of static charing
1 pcs. CA3046 Transistor Array DIP14Mechanical 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 Â
1 pcs. Xvive MN3005 4096 Stage BBD PDIP14(C)Rebuild of the MN3005 BBD from Panasonic. We think that it is a 1:1 clone from original Panasonic Chip. FeaturesVariable delay time from 20.48ms to 204.8msWide dynamic range 75dB (typ)Total harmonic distortion <0.5%Clock frequency from 10Hz up to 100KHzPackage: Special DIP-14 Mechanical Description:The IC is housed in a special DIP 14 package and is designed for trughhole mounting on a circuit board. THis chip is pin compatible to Panasonic MN3005 .ICs are sensitive to static charge! Handle with care.Semiconductors are excluded from exchange.Â
1 pcs. AD1862N - Digital-Analog-Converter for audio applicationResolution:              20bitInterface:                   seriellNumber of DAC outputs: 2Number of channels:     1Case:                         DIP16 Mechanical Description of D/A Converter: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 for AD1862N:The DA converter provides low distortion and typical differential linearity error is 0.001%. The interface is serial and provides a 20 bit resolution. No external components, such as temperature compensation or similar is required.It is a symmetrical supply voltage of +- 5V to +- 12V needed.Â
1 pcs. PCM1702U SOP20 Digital-Analog-Converter for audio application forResolution:              20bitInterface:                   seriellNumber of DAC outputs: 2Number of channels:     1Case:                         SOP20Mechanical Description:The digital to analog converter is housed in a SOP20 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 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 20 bit resolution. For operation, no external components, such as temperature compensation or similar is required.It is a supply voltage of + 5V needed.Â
1 pcs. Yamaha Hybrid IC MPD65004S for MA Units Practical hint:The IC is firmly soldered onto a circuit board. Manual dexterity and experience in soldering are required for replacement.IC's are sensitive to static charge! Â
1 pcs. IC T7617 PSR-60,HX-1,3,5Semiconductors 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 YM2160 (OPCW2) MC-600Semiconductors 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 YM3014 (DAC) CNR-80Semiconductors 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 YM316Semiconductors 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 YM3804 REV7Semiconductors 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 NE654Semiconductors 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 YM3807 MOD HX-1,3,5Semiconductors 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 TC531000P-7245 HS-7Semiconductors 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.
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.