File:Vintage Calfax Data Brain II Electronic Pocket Calculator
![](https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Vintage_Calfax_Data_Brain_II_Electronic_Pocket_Calculator%2C_Similar_To_The_Unifive_Data_Brain_II_%28aka_Unifive_301%29_Made_In_The_USA%2C_Red_LED_Display%2C_Made_In_Hong_Kong%2C_Circa_1974_%2814212785093%29.jpg/770px-thumbnail.jpg)
![](https://www.goodwillfinds.com/dw/image/v2/BGVZ_PRD/on/demandware.static/-/Sites-goodwill-master/default/dwe7c255f3/images/large/dszxajvk8/image/upload/sku/7cd4d731f3354db4a25a0c8d282f8969.jpeg?sw=259&q=65&strip=false)
Calculators GoodwillFinds
National Museum of American History
![](https://www.goodwillfinds.com/dw/image/v2/BGVZ_PRD/on/demandware.static/-/Sites-goodwill-master/default/dw0f651ce8/images/large/dszxajvk8/image/upload/sku/7a36d9c96aee4d2692e30efba7ff8992.jpeg?sw=259&q=65&strip=false)
Calculators GoodwillFinds
![](https://i.ytimg.com/vi/Sq_GFKpPhnY/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLA4rPiuS7n9rUPt9db_AH2FIbVzfg)
Mini Mail #2 - Vintage Calculator Collection!
![](http://www.epocalc.net/pages/mes_calc_liste/ae.jpg)
epocalc - Calculator pictures
![](https://www.picclickimg.com/GWsAAOSwCXdl9TtI/Rare-Casio-LC-818-Vintage-LCD-Pocket-Calculator.webp)
Vintage Calculators, Vintage Electronics, Electronics - PicClick AU
![](https://i.ytimg.com/vi/vltdJSgIXqU/maxresdefault.jpg)
Mini Mail #2 - Vintage Calculator Collection!
![](http://www.vintagecalculators.com/assets/images/IJIMini_1.jpg)
One Hit Wonders
![](https://www.picclickimg.com/h~0AAOSw5T1ltAjd/Vintage-Mini-Briefcase-Calculator-And-Business-Card-Holder.webp)
Vintage Calculators, Vintage Electronics, Consumer Electronics - PicClick CA
![](https://www.goodwillfinds.com/dw/image/v2/BGVZ_PRD/on/demandware.static/-/Sites-goodwill-master/default/dw2bfa91de/images/large/dszxajvk8/image/upload/sku/3ac7f7c5054a4e739edec10a259d83b4.jpeg?sw=259&q=65&strip=false)
Calculators GoodwillFinds
Powers on and works but only with charger, still doesn’t always work though. Battery compartment is corroded on one prong. Charger is also in need
![](https://i.ebayimg.com/images/g/WqMAAOSwKuxg-xGI/s-l1600.jpg)
Data Brain II by Calfax Vintage Calculator (Read)!! For Repair
![](https://p16-va.lemon8cdn.com/tos-maliva-v-ac5634-us/oYC1rASIbS7e14Df1gAagIApEHcLfqGqjRwCLE~tplv-tej9nj120t-origin.webp)
College Student Planer - Lemon8 Search
![](https://www.picclickimg.com/7ZEAAOSwk5FlAw61/Maths-Manual-Box-Guide-Vintage-WORKING.webp)
Vintage Calculators, Vintage Electronics, Electronics - PicClick AU