---
title: "ZX81 Logic Signals"
type: "article"
slug: "zx81-logic-signals"
url: "http://localhost/article/zx81-logic-signals/"
markdown_url: "http://localhost/article/zx81-logic-signals.md"
published_at: "2020-10-27T17:11:18+00:00"
modified_at: "2024-06-23T01:09:14+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Reference signal levels for troubleshooting."
category:
  - name: "Syntax"
    slug: "syntax"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/syntax/"
post_tag:
  - name: "1982"
    slug: "year-1982"
    taxonomy: "post_tag"
    url: "http://localhost/tag/year-1982/"
  - name: "Reference"
    slug: "reference"
    taxonomy: "post_tag"
    url: "http://localhost/tag/reference/"
  - 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/"
publication: "Syntax"
publication_r:
  id: 10246
  title: "Syntax"
  type: "periodical"
  url: "http://localhost/periodical/syntax/"
volume: "3"
issue: "10"
issues_articles:
  - id: 26707
    title: "Syntax/Syntax ZX80 v3 n10"
    type: "issue"
    url: "http://localhost/issue/syntax-syntax-zx80-v3-n10/"
pages: "13"
pubdate: "October 1982"
archive_link: false
volumeissue: "v3n10"
---

# ZX81 Logic Signals

Reference signal levels for troubleshooting.