---
title: "Advanced Interface Designs HRG manual"
id: 54624
type: "document"
slug: "advanced-interface-designs-hrg-manual"
url: "http://localhost/document/advanced-interface-designs-hrg-manual/"
markdown_url: "http://localhost/document/advanced-interface-designs-hrg-manual.md"
published_at: "2024-06-04T10:14:35+00:00"
modified_at: "2026-03-15T19:55:54+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2024/06/BookReaderImages.jpg"
excerpt: "The enclosed plans describe a circuit which when properly assembled will provide 256 horizontal x 192 vertical bit mapped high resolution graphics (HRG) for Sinclair ZX80/81 type computers. Although a novice, with care, could assemble the circuit, it is more suitable for those who have had some wire wrapping experience."
category:
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post_tag:
  - name: "Advanced Interface Designs"
    slug: "advanced-interface-designs"
    taxonomy: "post_tag"
    url: "http://localhost/tag/advanced-interface-designs/"
  - name: "G. Russell Electronics"
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    taxonomy: "post_tag"
    url: "http://localhost/tag/g-russell-electronics/"
  - name: "TS 1000"
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  - name: "ZX80"
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model:
  - name: "Sinclair ZX80"
    slug: "zx80"
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  - name: "Timex/Sinclair 1000"
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    url: "http://localhost/model/ts-1000/"
document_url: "https://archive.org/details/advanced-interface-design/Advanced%20Interface%20Designs%20HRG%20manual"
pages: 26
document_date: "198x"
related_content:
  - id: 11569
    title: "256×192 Bit Mapped Hi Res Graphics"
    type: "product"
    url: "http://localhost/product/256x192-bit-mapped-hi-res-graphics/"
document_publisher:
  - id: 10632
    title: "Advanced Interface Designs"
    type: "company"
    url: "http://localhost/company/advanced-interface-designs/"
---

# Advanced Interface Designs HRG manual

The enclosed plans describe a circuit which when properly assembled will provide 256 horizontal x 192 vertical bit mapped high resolution graphics (HRG) for Sinclair ZX80/81 type computers. Although a novice, with care, could assemble the circuit, it is more suitable for those who have had some wire wrapping experience.