1134-A
The General Radio 1134-A Analog to Digital Converter was introduced in Catalog Q (1961) and remained available through Catalog R (1963).
The Type 1134-A is an accessory for the Type 1130-A Digital Time and Frequency Meter. It's purpose is to convert digital information for the frequency meter to analog voltage for recorder use. The 1134-A can be used with any device producing digital data at the appropriate logic voltage levels. The conversion of digital data enables plotting resulting in a permanant record.
Specifications
- Data Input: BCD, weighted 1-2-4-2 or 1-2-2-4. Binary "1" +90 V max. Binary "0" +150 V min
- Output: 1 ma at 30 kΩ source impedance or 100 mv across 100 Ω. Positive side grounded
- Load: 2000 Ω maximum for 1 mA. 2000 Ω minimum for 100 mV
