---
title: "Slow/Fast kit for ZX80 with 8K ROM"
id: 13941
type: "product"
slug: "slow-fast-kit-for-zx80-with-8k-rom"
url: "http://localhost/product/slow-fast-kit-for-zx80-with-8k-rom/"
markdown_url: "http://localhost/product/slow-fast-kit-for-zx80-with-8k-rom.md"
published_at: "2019-11-30T01:20:18+00:00"
modified_at: "2026-03-22T13:20:27+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "FAST and SLOW modes on ZX80 with 8K ROM. PCB with complete instructions and parts list. PCB will work with new ROMs if installed properly."
category:
  - name: "Graphics"
    slug: "graphics"
    taxonomy: "category"
    url: "http://localhost/category/hardware/graphics/"
post_tag:
  - name: "Computer Engineering Services"
    slug: "computer-engineering-services-the-jarrett-company"
    taxonomy: "post_tag"
    url: "http://localhost/tag/computer-engineering-services-the-jarrett-company/"
  - name: "ZX80"
    slug: "zx80"
    taxonomy: "post_tag"
    url: "http://localhost/tag/zx80/"
model:
  - name: "Sinclair ZX80"
    slug: "zx80"
    taxonomy: "model"
    url: "http://localhost/model/zx80/"
genre:
  - name: "Hardware"
    slug: "hardware"
    taxonomy: "genre"
    url: "http://localhost/type/hardware/"
company:
  id: 10758
  title: "Computer Engineering Services (The Jarrett Company)"
  type: "company"
  url: "http://localhost/company/computer-engineering-services-the-jarrett-company/"
price: 32.5
date: 1982
rarity: "Uncommon"
articles:
  - article:
      id: 24415
      title: "Extending Your Computer"
      type: "article"
      url: "http://localhost/article/extending-your-computer/"
  - article:
      id: 24573
      title: "Resources (Sync v2 n5)"
      type: "article"
      url: "http://localhost/article/resources-sync-v2-n5/"
companies_products:
  - id: 10758
    title: "Computer Engineering Services (The Jarrett Company)"
    type: "company"
    url: "http://localhost/company/computer-engineering-services-the-jarrett-company/"
---

# Slow/Fast kit for ZX80 with 8K ROM

FAST and SLOW modes on ZX80 with 8K ROM. PCB with complete instructions and parts list. PCB will work with new ROMs if installed properly.