Beat-Frequency (Modulation) Generator
AssemblyHeterodyne circuit subtracting two 4 kHz carriers to produce 1–200 Hz beat frequency for amplitude modulation. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Beat-Frequency (Modulation) Generator
4 top-level lines as of r90907| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Balanced Mixer | interferential-therapy-unit-mixer-diode | 1× | 1 | · | part |
| 2 | Low-Pass Filter | interferential-therapy-unit-lpf-filter | 1× | 1 | · | part |
| 3 | Modulation Amplifier | interferential-therapy-unit-modulation-amp | 1× | 1 | · | part |
| 4 | Modulation DAC | interferential-therapy-unit-dac-modulation | 1× | 1 | · | part |