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(1) Power supply | • Input 220V±10%, 50Hz, with power switch • Fixed DC Output: +5V/1A, 12V/0.5A • Adjustable DC Output: -5V…-12V/0.2A, +5V…+27V/0.2A • AC output: 7.5V (2-way), 0.2A centre tap output |
(2) DC signal source | two-channel, -0.5…+0.5V, -5V…+0.5V continuously adjustable |
(3) Function generator | • Output frequency: 10Hz…100KHz, four-grade switchable • Selective waveform amplification and attenuation • Square wave 0…10VPP (18VPP) • Triangular wave 0…10VPP (18VPP) • Sine wave 0…10VPP (18VPP) |
(4) Digital frequency meter | 0…100KHz |
(5) Digital voltmeter | 0…30V |
(6) Experiment extension area | • DIP 14-pin socket x3 • DIP 8-pin socket x2 • Plug area for component insertion |
(7) Accessories | • DIP 14-pin socket x3 • DIP 8-pin socket x2 • Plug area for component insertion |
(1) Single stage amplifying circuit | (10) Voltage comparator | (18) Proportion summation operational circuit |
(2) Two-stage amplifying circuit | (11) Integrated circuit RC sine-wave oscillator | (19) Rectification filter and parallel voltage regulator circuit |
(3) Negative feedback amplifying circuit | (12) Integrated power amplifier | (20) LC oscillator and frequency-selective amplifier |
(4) Emitter follower | (13) Series voltage regulator circuit | (21) Complementary symmetry power amplifier |
(5) Differential amplifying circuit | (14) Integrated voltage stabilizer | (21) Waveform changing circuit |
(7) Integrating and differentiating circuit | (15) RC sine-wave oscillator | (22) Field-effect tube amplifying circuit |
(8) Waveform generating circuit | (16) Current / Voltage switching circuit | (23) Thyristor experiment circuit |
(9) Active filter | (17) Voltage / Frequency switching circuit |
Quantity (sets) | 1 - 5 | >5 |
Time (days) | 30 | To be negotiated |
Wenzhou CHOIEO (Qiaoou) Education Technology Co., Ltd. was established on January 22, 2019, with its registered address located in Heyi Village, Oubei Street, Yongjia County, Wenzhou city, Zhejiang Province (within Zhejiang Weifeng Machinery Co., LTD.).
Its business scope includes research and development, installation and sales of education software; Design, development and installation of teaching equipment, teaching instruments, teaching models, teaching training equipment, laboratory equipment, instruments and meters, professional skill appraisal equipment, intelligent manufacturing training equipment; Hardware products, metal products, low-voltage electrical equipment, office equipment, mechanical equipment, computer software and hardware research and development; Import and export of goods and technologies.