|Model: ||395 / exponent 1|
|Functions: ||Basic four, percent, exchange, square root, memory|
|Number of Digits: ||8|
|Display Type: ||PPX2|
|Display:||Burroughs BR 09250 M (Panaplex II)|
|Logic Technology: ||LSI|
|IC Complement:||Rockwell A1241PA
|Batteries: ||4 AA NiCd (1.2V each)|
|Power Connector:||10.6 VAC, sub-mini audio|
(alternate/no batteries: 4.5 to 6 VDC, + tip)
|Tech. Data Level: ||2|
|Tech. Data Source: ||RE|
|Tech. Data Pages: ||1|
|Tech. Data:||Schematic (pdf)|
The Keystone calculators are quite rare in their
use of gas-discharge displays in a pocket calculator.
The 325 came in a nice case, and with a mechanical pencil.
The case is an indication of how valued such a calculator was in its day.
The case does look suspiciously similar to those provided for electric shavers back in the day, though.
- Unit Log -
|Serial Number: ||C377258|
|Year of Manufacture: ||1974 (IC stamped with 7401, display with 7340.)|
|Accessories: ||With display case and manual.|
|Date of Receipt: ||21 May 2001|
|State upon Receipt: ||Good physical condition. Fully functional.|
|Current State: ||Fully functional (31 May 2001).|
|Date: ||24 May 2001|
|Date: ||31 May 2001|
|Procedure: ||12 ohm dropping resistor on power supply input bypassed for use without batteries.|