---
title: "Dear Editor"
type: "article"
slug: "dear-editor-40"
url: "http://localhost/article/dear-editor-40/"
markdown_url: "http://localhost/article/dear-editor-40.md"
published_at: "2020-10-27T17:19:51+00:00"
modified_at: "2024-06-23T01:04:04+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "How to make a program unlistable; program for linear regression; painting heatsinks; FORTH; problems with 8K ROM/keyboard upgrade for ZX80; MicroAce flicker-free kit; large keyboard; edge connector cleaner."
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: "EZRA GROUP II"
    slug: "ezra-group-ii"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ezra-group-ii/"
  - name: "MicroAce"
    slug: "microace"
    taxonomy: "post_tag"
    url: "http://localhost/tag/microace/"
  - name: "ZX80"
    slug: "zx80"
    taxonomy: "post_tag"
    url: "http://localhost/tag/zx80/"
  - name: "ZX81"
    slug: "zx81"
    taxonomy: "post_tag"
    url: "http://localhost/tag/zx81/"
model:
  - name: "MicroAce"
    slug: "microace"
    taxonomy: "model"
    url: "http://localhost/model/microace/"
  - name: "Sinclair ZX80"
    slug: "zx80"
    taxonomy: "model"
    url: "http://localhost/model/zx80/"
  - name: "Sinclair ZX81"
    slug: "zx81"
    taxonomy: "model"
    url: "http://localhost/model/zx81/"
indiv:
  - name: "Andrew Leberman"
    slug: "andrew-leberman"
    taxonomy: "indiv"
    url: "http://localhost/indiv/andrew-leberman/"
  - name: "Chuck Hutton"
    slug: "chuck-hutton"
    taxonomy: "indiv"
    url: "http://localhost/indiv/chuck-hutton/"
  - name: "Larry Lockwood"
    slug: "larry-lockwood"
    taxonomy: "indiv"
    url: "http://localhost/indiv/larry-lockwood/"
  - name: "Paul Ezra"
    slug: "paul-ezra"
    taxonomy: "indiv"
    url: "http://localhost/indiv/paul-ezra/"
  - name: "Richard Holmes"
    slug: "richard-holmes"
    taxonomy: "indiv"
    url: "http://localhost/indiv/richard-holmes/"
  - name: "Ronald Miller"
    slug: "ronald-miller"
    taxonomy: "indiv"
    url: "http://localhost/indiv/ronald-miller/"
  - name: "Russell Gagnon"
    slug: "russell-gagnon"
    taxonomy: "indiv"
    url: "http://localhost/indiv/russell-gagnon/"
publication: "Syntax"
publication_r:
  id: 10246
  title: "Syntax"
  type: "periodical"
  url: "http://localhost/periodical/syntax/"
authors: "Andrew Leberman; Paul Ezra; Chuck Hutton; Rich Holmes; Larry Lockwood; Russ Gagnon; Ron Miller"
volume: "3"
issue: "3"
issues_articles:
  - id: 26709
    title: "Syntax/Syntax ZX80 v3 n12"
    type: "issue"
    url: "http://localhost/issue/syntax-syntax-zx80-v3-n12/"
pages: "14-15"
pubdate: "March 1982"
archive_link: false
volumeissue: "v3n3"
companies_articles:
  - id: 10868
    title: "EZRA GROUP II"
    type: "company"
    url: "http://localhost/company/ezra-group-ii/"
  - id: 11104
    title: "MicroAce"
    type: "company"
    url: "http://localhost/company/microace/"
---

# Dear Editor

How to make a program unlistable; program for linear regression; painting heatsinks; FORTH; problems with 8K ROM/keyboard upgrade for ZX80; MicroAce flicker-free kit; large keyboard; edge connector cleaner.