---
title: "American Express Boosts Sales of the ZX81"
id: 35621
type: "document"
slug: "american-express-boosts-sales-of-the-zx81"
url: "http://localhost/document/american-express-boosts-sales-of-the-zx81/"
markdown_url: "http://localhost/document/american-express-boosts-sales-of-the-zx81.md"
published_at: "2021-01-10T00:38:39+00:00"
modified_at: "2026-03-15T17:28:46+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "American Express has received over 25,000 orders in the last three weeks for the Sinclair ZX81 personal computer, following an initial direct mail offer to two million American Express US cardholders at the end of May. In a very positive initial response 2,000 orders alone were received by noon the day after the mailing, and…"
category:
  - name: "Documentation"
    slug: "documentation"
    taxonomy: "category"
    url: "http://localhost/category/documentation/"
post_tag:
  - name: "American Express"
    slug: "american-express"
    taxonomy: "post_tag"
    url: "http://localhost/tag/american-express/"
  - name: "Sinclair Research Ltd."
    slug: "sinclair-research-ltd"
    taxonomy: "post_tag"
    url: "http://localhost/tag/sinclair-research-ltd/"
  - name: "ZX81"
    slug: "zx81"
    taxonomy: "post_tag"
    url: "http://localhost/tag/zx81/"
document_url: "https://archive.org/details/sinclair-research/Sinclair_Press_Releases/page/n3/mode/2up"
pages: 1
document_date: "June 18, 1982"
related_content:
  - id: 11292
    title: "Sinclair Research Ltd."
    type: "company"
    url: "http://localhost/company/sinclair-research-ltd/"
document_publisher:
  - id: 11292
    title: "Sinclair Research Ltd."
    type: "company"
    url: "http://localhost/company/sinclair-research-ltd/"
---

American Express has received over 25,000 orders in the last three weeks for the Sinclair ZX81 personal computer, following an initial direct mail offer to two million American Express US cardholders at the end of May.

In a very positive initial response 2,000 orders alone were received by noon the day after the mailing, and American Express is projecting total sales from the offer of at least 50,000 units.

The agreement between Sinclair Research and American Express for the offer followed a successful test market for the ZX81, at the latter’s request, at the end of 1981.