| 摘要 |
PURPOSE:To make it possible to adjust oscillating frequency, by making the load resistor of an oscillating circuit variable. CONSTITUTION:The selection of four load resistors Rd0-Rd3 is carried out by a load resistor selecting circuit 6. These load resistors Rd0-Rd3 are connected to an osillating circuit 1 as load and oscillating frequency is adjusted by the value of each connected load resistor. |
