Yamaha DX7 memory backup circuit
#Yamaha DX7
#memory backup
#synthesizer
#MIDI
#audio circuit
#data storage
#retro audio
#electronic music
#keyboard
#preset backup
No description available.
SB Midi Cable
The Sound Blaster MIDI port utilizes two pins from a 15-pin joystick port, which typically serve as redundant +5 volt and ground lines. In the context of the Sound Blaster, these pins are designated as MIDI TXD (Transmit eXternal Data)...
Hammond T-100/T-200/T-500 MIDIvice
A MIDI interface designed for automatic accompaniment or controlling a MIDI expander. MIDIvice supports both manuals and includes various program features. It functions as a MIDI output interface for the upper and lower manuals, utilizing an economical 8031 microcontroller and...
automated angklung instrument
This instrument is a computer-controlled acoustical angklung designed and built in 2000. In 2006, it underwent a major hardware upgrade. The anklungs are constructed from hardened brass and are tuned to a western scale covering two octaves. The instrument can...
Spectrum Keyboard Buffer
Most individuals seeking to modify and enhance their Spectrum often focus on the keyboard as a primary area for improvement. However, a straightforward replacement requires opening the computer, which can be discouraging for two main reasons. Firstly, this action may...
Hammond Commodore MIDI Interface
The schematic circuit board features switches that output -2V when activated and 0V when deactivated. Four 4067 multiplexers combine the 64 switch signals into 4 signals that return to the main PIC board.
The circuit design incorporates a series of switches,...
8-Way MIDI Drum Pads
Do you have rhythm? Would you like to transfer that rhythm to your computer or hardware sequencer? One of the easiest methods to achieve this is by using MIDI drum pads that can be struck with drumsticks, allowing data to...
Memory save on power-down
The auxiliary output powers the memory, while the main output powers the system and is connected to the memory store pin. When power goes down, the main output goes low, commanding the memory to store. The auxiliary output then drops...
Four channel synthesizer
This circuit synthesizes two rear channels for quadraphonic sound when provided with a stereo signal. The rear output for the left channel is created by combining the left channel input, which is 180 degrees out of phase, with a portion...
Music Keyboard circuit
The circuit operates as an astable multivibrator, generating a square wave signal at a specific frequency. When powered, the circuit will function continuously.
The astable multivibrator circuit is a type of oscillator that produces a continuous square wave output without the...