Radio Shack EC-3001

Date of introduction:  1977 Display technology:  
New price:   Display size:  n.a.
Size:  8.6" x 3.9" x 2.5"
 218 x 98 x 63 mm3
Weight:  28.2 ounces, 802 grams Serial No:  95304
Batteries:  6*AA NiCd Date of manufacture:  wk 29 year 1977
AC-Adapter:  AC9171 Origin of manufacture:  USA (LTA)
Precision:  10 Integrated circuits:  TMS1115
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

This Radio Shack EC-3001 printing desktop calculator could be easily identified as a Texas Instruments product. It is 100% identical with the TI-5050M introduced already in June 1976.

EC-3001_1.jpg (370624 Byte)The backside of the EC-3001 looks very familiar to us. It makes use of the original TI-5050M mold and hides its true genes under a small label.

The EC-3001 and the EC-3004 were the last Texas Instruments printing desktop calculators sold under the Radio Shack brand, later models based on far-east OEM products.

horizontal rule

If you have additions to the above article please email:

Joerg Woerner, April 8, 2008. No reprints without written permission.