Condition: Unused / New Old Stock appearance. No corrosion. Board is fully populated except two empty IC sockets: U113 and U114. Clean solder side with original factory work plus a small oscillator daughterboard (85-2823-1) and 1.8432 MHz Fox Item specifics

• Manufacturer: Heath Company / Heathkit

• Year: 1981 (board marked 102781 / HEATH CORP 1981)

• Board numbers: 85-2714, sticker S 55043-00322 / 181-4362

• Daughterboard: 85-2823-1

• Type: Terminal Logic Board (TLB) – video/control section for Heathkit terminal or all-in-one computer of the H19 / H89 family era

Notable components

• Intel P8031AH microcontroller (1982 date code)

• Intel P8275 programmable CRT controller

• NEC D2316E ROM

• Multiple 74LS TTL, Motorola CMOS, and support logic

• Gold-plated connectors and AMP header

• Small optical / isolator-style part (QMB-01) and speaker/buzzer on component side

This is a complete-looking vintage Heathkit computer/terminal logic board. Collectors of H8, H19, H89, and Zenith Data Systems 8-bit systems may want it for parts, restoration, or display. I have not powered or tested the board.

Missing / notes

• Sockets U113 and U114 are empty

• Sold as-is for parts or collectible use

• Photos show both component side and solder side

Shipping: Well packed.Ask any questions before offerding.