Difference between revisions of "M-222"
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Converter M-222 is designed to supply emergency ringing current for telephone switchboards from two Signal Corps Batteries BA-23 in series, as a source of power. Converter M-222 is supplied without the batteries, which must be installed as described in paragraph 6, Battery Installation. The output voltage is 100 volts a.c. open circuit; 50 volts a.c. with a 5-watt load. The peak voltage does not exceed 250 volts a.c. The frequency of the output voltage is 24 cycles -I- 4 cycles. | Converter M-222 is designed to supply emergency ringing current for telephone switchboards from two Signal Corps Batteries BA-23 in series, as a source of power. Converter M-222 is supplied without the batteries, which must be installed as described in paragraph 6, Battery Installation. The output voltage is 100 volts a.c. open circuit; 50 volts a.c. with a 5-watt load. The peak voltage does not exceed 250 volts a.c. The frequency of the output voltage is 24 cycles -I- 4 cycles. | ||
| − | [[File:M- | + | [[File:M-222_7.png|400px]] |
==Images== | ==Images== | ||
<gallery widths=100px heights=100px perrow=5> | <gallery widths=100px heights=100px perrow=5> | ||
| + | File:M-222 8751780191 l.jpg | ||
File:M-222_1.png | File:M-222_1.png | ||
File:M-222_2.png | File:M-222_2.png | ||
Revision as of 12:29, 20 September 2013
Overview
Converter M-222 is designed to supply emergency ringing current for telephone switchboards from two Signal Corps Batteries BA-23 in series, as a source of power. Converter M-222 is supplied without the batteries, which must be installed as described in paragraph 6, Battery Installation. The output voltage is 100 volts a.c. open circuit; 50 volts a.c. with a 5-watt load. The peak voltage does not exceed 250 volts a.c. The frequency of the output voltage is 24 cycles -I- 4 cycles.
Images
Related Files
- Technical Manual
- Converter
- M-222
- March 16, 1943
- Technical Manual
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- April 1946