Specifications
- Measuring ranges
- 5000 VA
- Accuracy
- ±1%
- Construction
- transistors
- Power supply
- 187–242 V, 50/60 Hz
- Power consumption
- 7800 VA
- Dimensions
- 450 × 320 × 560 mm (W × H × D)
- Weight
- 110 kg
Description
The I4202 is a stabilised AC voltage source, made by IEMI in Bucharest and designed at the ICE research institute [1]. The ICE laboratory’s table gives its code as J 4202 [1].
ICE’s laboratory for electronic instruments for measuring electrical quantities designed all the institute’s generations of oscilloscopes, voltmeters, multimeters, signal generators, frequency meters, logic analysers, RLC bridges and stabilised AC power supplies; they went into production at IEMI or in ICE’s own microproduction workshop, and equipped industrial laboratories and production lines as well as teaching and research laboratories [1]. In the 1970s and 1980s about half of the components of measuring instruments were imported; after 1980 about three quarters were Romanian [1].
It delivers 5000 VA [2]. IEMI’s production table lists 1,769 units made in 1976–1985 [2].
Its list price, set in 1982, was 17,500 lei [3].
Annex III.2.14 says it supplied test and adjustment benches and other single-phase equipment and installations when the mains voltage varied continuously within wide limits (187–242 V), giving 220 V ±1%, adjustable between 210 and 230 V, at 22.7 A; it was fully transistorised and could work at full load for 16 hours without interruption [4].
Gallery
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Schematics
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Documents
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References
- [1]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, section II.4.1 „Laborator aparate electronice pentru măsurarea mărimilor electrice”, pp. 109–115
- [2]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, sections III.2 „Producția IEMI” and III.3 „Comentarii tehnico-economice”, pp. 302–317, and annex III.2.3 „Producția IEMI – aparate electronice de măsură și industriale”, pp. 383–386
- [3]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, annex III.2.5 „Lista cu prețurile produselor – IEMI”, pp. 393–396
- [4]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, annex III.2.14 „Surse de alimentare”, pp. 674–677