---
title: "ZX81 and 16K RAM Schematics"
type: "article"
slug: "zx81-and-16k-ram-schematics"
url: "http://localhost/article/zx81-and-16k-ram-schematics/"
markdown_url: "http://localhost/article/zx81-and-16k-ram-schematics.md"
published_at: "2020-10-27T17:12:42+00:00"
modified_at: "2024-06-23T00:44:24+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "A new company, Heuristics, is the exclusive distributor of ZX81 and 16K RAM pack schematics. They also plan ZX81 hardware and software."
category:
  - name: "Syntax"
    slug: "syntax"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/syntax/"
post_tag:
  - name: "1981"
    slug: "year-1981"
    taxonomy: "post_tag"
    url: "http://localhost/tag/year-1981/"
  - name: "Heuristics"
    slug: "heuristics"
    taxonomy: "post_tag"
    url: "http://localhost/tag/heuristics/"
  - name: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
  - name: "ZX81"
    slug: "zx81"
    taxonomy: "post_tag"
    url: "http://localhost/tag/zx81/"
model:
  - name: "Sinclair ZX81"
    slug: "zx81"
    taxonomy: "model"
    url: "http://localhost/model/zx81/"
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
    url: "http://localhost/model/ts-1000/"
indiv:
  - name: "David Ornstein"
    slug: "david-ornstein"
    taxonomy: "indiv"
    url: "http://localhost/indiv/david-ornstein/"
publication: "Syntax"
publication_r:
  id: 10246
  title: "Syntax"
  type: "periodical"
  url: "http://localhost/periodical/syntax/"
volume: "2"
issue: "11"
issues_articles:
  - id: 26703
    title: "Syntax/Syntax ZX80 v2 n11"
    type: "issue"
    url: "http://localhost/issue/syntax-syntax-zx80-v2-n11/"
pages: "13"
pubdate: "November 1981"
archive_link: false
volumeissue: "v2n11"
companies_articles:
  - id: 10932
    title: "Heuristics"
    type: "company"
    url: "http://localhost/company/heuristics/"
---

# ZX81 and 16K RAM Schematics

A new company, Heuristics, is the exclusive distributor of ZX81 and 16K RAM pack schematics. They also plan ZX81 hardware and software.