| 摘要 |
PURPOSE:To realize an in-phase and an opposite-phase type and to perform in- phase or opposite-phase operation on the same printed board, etc., by specifying the position relation among three lead pins implanted in a stem. CONSTITUTION:The lead pins 78, 79, and 80 are implanted in the stem 82 almost on a straight line 95 in order and their distances 93 and 94 are set equal to each other. Respective comb-tooth electrodes 93 and 94 of an inter-digital electrode 77 are connected to the pins 79 and 80 and one comb tooth electrode 72 of an inter- digital electrode 74 is connected to the pin 78. Consequently, the in-phase lead pin 79 and opposite-phase lead pin 80 are positioned symmetrically about the common lead pin 78. The in-phase type and opposite-phase type are both realized and in-phase or opposite-phase operation is performed on the same printed board, etc. |
