---
title: "64K Dynamic RAM"
id: 24656
type: "product"
slug: "64k-dynamic-ram"
url: "http://localhost/product/64k-dynamic-ram/"
markdown_url: "http://localhost/product/64k-dynamic-ram.md"
published_at: "2020-01-19T19:57:16+00:00"
modified_at: "2026-03-22T13:13:16+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "64K DRAM board for the TS1000, TS1500 or ZX81. Special features of this memory include: 8-12K on/off switch12-16K on/off switchtwo banks of 8K ram available mapped 8-16K (Bank A/B switch)and 48-64K on/off switch"
category:
  - name: "RAM"
    slug: "ram"
    taxonomy: "category"
    url: "http://localhost/category/hardware/ram/"
post_tag:
  - name: "John Oliger Co."
    slug: "john-oliger-co"
    taxonomy: "post_tag"
    url: "http://localhost/tag/john-oliger-co/"
  - 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/"
genre:
  - name: "Hardware"
    slug: "hardware"
    taxonomy: "genre"
    url: "http://localhost/type/hardware/"
  - name: "RAM"
    slug: "ram"
    taxonomy: "genre"
    url: "http://localhost/type/ram/"
company:
  id: 10990
  title: "John Oliger Co."
  type: "company"
  url: "http://localhost/company/john-oliger-co/"
price: 19.95
date: 1982
rarity: "Uncommon"
related_content:
  - id: 9335
    title: "Converting the Oliger 64K Ram for the 2068"
    type: "article"
    url: "http://localhost/article/converting-the-oliger-64k-ram-for-the-2068/"
  - id: 25137
    title: "Build a 64K Dynamic Memory Board"
    type: "article"
    url: "http://localhost/article/build-a-64k-dynamic-memory-board/"
  - id: 19509
    title: "SQ-UP"
    type: "article"
    url: "http://localhost/article/sq-up/"
  - id: 35597
    title: "The John Oliger Co. Product Lists"
    type: "document"
    url: "http://localhost/document/the-john-oliger-co-product-lists/"
product_reviews:
  - id: 25137
    title: "Build a 64K Dynamic Memory Board"
    type: "article"
    url: "http://localhost/article/build-a-64k-dynamic-memory-board/"
image_gallery:
  - url: "http://localhost/wp-content/uploads/2024/05/JLO-64K-Dynamic-RAM.jpg"
  - url: "http://localhost/wp-content/uploads/2024/05/JLO-64K-Dynamic-RAM-back.jpg"
companies_products:
  - id: 10990
    title: "John Oliger Co."
    type: "company"
    url: "http://localhost/company/john-oliger-co/"
---

# 64K Dynamic RAM

64K DRAM board for the TS1000, TS1500 or ZX81. Special features of this memory include:

- 8-12K on/off switch
- 12-16K on/off switch
- two banks of 8K ram available mapped 8-16K (Bank A/B switch)
- and 48-64K on/off switch