--- title: "Revising a Hunter Board to Hold 32K Bank Switchable NVRAM" type: "article" slug: "revising-a-hunter-board-to-hold-32k-bank-switchable-nvram" url: "http://localhost/article/revising-a-hunter-board-to-hold-32k-bank-switchable-nvram/" markdown_url: "http://localhost/article/revising-a-hunter-board-to-hold-32k-bank-switchable-nvram.md" published_at: "2020-10-27T17:09:05+00:00" modified_at: "2025-11-04T13:23:04+00:00" featured_image: url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg" excerpt: "With HM6264LP-I5 28 pin RAMS at less than $4 each, l have devised a not-too-difficult revision to a Hunter board which will give your ZX81/TS1000 four switchable 8K sections of write-protected NVRAM on the one board." category: - name: "T-S Horizons" slug: "t-s-horizons" taxonomy: "category" url: "http://localhost/category/periodicals/t-s-horizons/" post_tag: - name: "Hardware project" slug: "hardware-project" taxonomy: "post_tag" url: "http://localhost/tag/hardware-project/" - name: "Hunter Electronics" slug: "hunter-electronics" taxonomy: "post_tag" url: "http://localhost/tag/hunter-electronics/" - name: "TS 1000" slug: "ts1000" taxonomy: "post_tag" url: "http://localhost/tag/ts1000/" model: - name: "Timex/Sinclair 1000" slug: "ts-1000" taxonomy: "model" url: "http://localhost/model/ts-1000/" indiv: - name: "Walter Komlosy" slug: "walter-komlosy" taxonomy: "indiv" url: "http://localhost/indiv/walter-komlosy/" publication: "T-S Horizons" publication_r: id: 10247 title: "T-S Horizons" type: "periodical" url: "http://localhost/periodical/t-s-horizons/" authors: "Walter Komlosy" issue: "19" issues_articles: - id: 26862 title: "T-S Horizons n19" type: "issue" url: "http://localhost/issue/t-s-horizons-n19/" pages: "13-14" pubdate: "May/June 1986" archive_link: false volumeissue: "vn19" companies_articles: - id: 10940 title: "Hunter Electronics" type: "company" url: "http://localhost/company/hunter-electronics/" --- With HM6264LP-I5 28 pin RAMS at less than $4 each, l have devised a not-too-difficult revision to a Hunter board which will give your ZX81/TS1000 four switchable 8K sections of write-protected NVRAM on the one board.