DATAMATH CALCULATOR MUSEUM
Canon CB-8 Checkbook
|Date of introduction:||1983||Display technology:||LCD|
|New price:||Display size:||8|
|Size:|| 2.8" x
6.0" x 0.3"
70 x 152 x 7 mm3
|Weight:||2.4 ounces, 69 grams||Serial No:|
|Batteries:||CR2025||Date of manufacture:||year 1984|
|AC-Adapter:||Origin of manufacture:||Japan|
|Precision:||8||Integrated circuits:||NEC uPD1833G|
|Program steps:||Courtesy of:||Joerg Woerner|
Canon Checkbook started the idea of an Account Manager already in
1982 and outdated the Texas Instruments TI-2200
by a few weeks. A
less powerful version with only one memory was sold as Checkbook
This unusual Canon CB-8 Checkbook calculator uses the housing of the original Checkbook but added a red [A↔F] key, we unfortunately miss the operating manual to understand its function.
Dismantling this CB-8 Checkbook calculator manufactured in 1984 in Japan reveals a very solid construction centered around a NEC uPD1833G single-chip calculator circuit and it seems to be 100% identical with the Checkbook.
Don't miss the Corvus CheckMaster introduced by MOSTEK already in 1975. This rare product retains the balance of your memory even when shut off but uses power-hungry electronics.
If you have additions to the above article please email: email@example.com.
© Joerg Woerner, November 22, 2019. No reprints without written permission.