Due to several inquiries regarding sources for the purchase of components, here are some general information and links, which, however, do not claim to be correct or complete. Please check yourself whether suitable for the purpose. (at AliExpress for a fast 10-14 days delivery use "AliExpress Standart Shipping" if possible, if you don't want to wait 1-2 months for the delivery)

Note: If possible please do not buy TTL Chips (74LSxx) in China/eBay, because these are often fake IC, respectively which may behave logically correct, but from the timing can cause big problems!

Eckstein | 5V Step-Down Voltage Regulator | > Link

Eckstein | 9V Step-Up Voltage Regulator | > Link

Eckstein | 12V Step-Up Voltage Regulator | > Link

AliExpress | 5V (3A) Step-Down Voltage Regulator | > Link

AliExpress | OLED 0.96" Gelb/Weiß LCD Display | > Link

AliExpress | DC Power Jack 2.1mm | > Link

AliExpress | HDMI Jack (TYPE-1) | > Link

AliExpress | 1x40 Pin Header | > Link

AliExpress | 72 Pin / 44 Pin / 24 Pin Edge Connector | > Link

AliExpress | 44 Pin 90° Edge Connector | > Link

AliExpress | DB9 Joystick Jack | > Link

AliExpress | EEPROM AT28C256 | > Link

AliExpress | Audio Cinch Jack | > Link

AliExpress | Serial Jack (DS-6) | > Link

AliExpress | Video Jack (8P DS-8-102 262B Deg) | > Link

AliExpress | B103 10K Resitor Wheel | > Link

AliExpress | Headphone Audio Jack | > Link

AliExpress | S-Video Jack (4-Pin) | > Link

AliExpress | USB Host mini | > Link

AliExpress | ATX Power Connector | > Link

AliExpress | Gameboy Pocket (GBP) DPAD Set | > Link

AliExpress | EMI Noise Filter (220pF) | > Link

AliExpress | EMI Noise Filter (470pF) | > Link