IBM PCjr VoltBus Rev A Pico PSU Power Supply Adapter PCB Bare Board SECONDWAVE
$ 21.12
Description
IBM PCjr VoltBus Rev A Pico PSU Power Supply Adapter PCB Bare Board SECONDWAVE. Typical VoltBus Rev 1 build require - IBM PCjr expansion bus power interface. - Original IBM PCjr switch may be used. upgrades and revisions expected for Rev B. Rev B is expected to be sold as Completed boards, no soldering required. VoltBus Rev 1 – IBM PCjr PicoPSU Adapter PCB Second Wave Logic Small-batch enthusiast PCB designed for integrating PicoPSU-style DC-ATX power supplies into the IBM PCjr. This listing is for: - PCB ONLY - No components included Designed for hobbyists and retro computing enthusiasts comfortable sourcing and assembling through-hole components. Features: - IBM PCjr expansion bus power interface - PicoPSU / DC-ATX module support 24 pin - Compact internal installation - Support for standard ATX PSON switching - Black PCB with white silkscreen - Designed with future modular expansion in mind Important: Many PicoPSU clone units vary internally. Testing showed standard ATX pin 16 PSON switching to be the most reliable startup method. Components Required Builder must source all components. Typical VoltBus Rev 1 build require: - PicoPSU or compatible DC-ATX module 24 pin - 24-pin ATX PCB header/socket - SPDT ON-ON rocker switch - Original IBM PCjr switch may be used - Compatible replacement switches may also be used - 4-pin LP4 disk drive Molex connector 90 or straight ( can be swapped from pcjr original power supply) - 3-pin 2.54mm fan header (can be swaped from pcjr original power supply) - Wire for PSON jumper if using alternate ATX pin 16 startup method Recommended: - 12V regulated DC supply - 8A minimum - 10A preferred for expanded systems Board only. No PicoPSU, connectors, switch, hardware, or components included. This is an enthusiast-level DIY project intended for experienced retro hardware builders. Designed by Second Wave Logic. Limited first-run boards available. ships with detailed instructions. soldering skills required. upgrades and revisions expected for Rev B. Rev B is expected to be sold as Completed boards, no soldering required. Will not be sold with Pico or power brick. Expected price increase for parts and labor.
