| 摘要 |
<p>Switch means are provided in a circuit for defeating the application of sync pulses simultaneously with the adjustment of a horizontal oscillator. The switch comprises a pair of upstanding conductive elements disposed adjacent one end of a slug-tuned coil. Adjusting means operable from without the receiver cabinet extend through the slug-tuned coil to the vicinity of the switch elements. The adjusting means are pushed inwardly from without the receiver cabinet to cause the switch to close, defeating the sync pulses. While in this extended position the adjusting means may be turned to modify the characteristics of the slug-tuned coil, while operation of the oscillator circuit continues unhampered by the presence of sync pulses.</p> |
