Ekvatorijalni Kontroler Motora

The mains power entering your home nije clean. To je contaminated by the aggregate electromagnetski potpis of every uređaj on the grid — every refrigerator compressor, every dimmer switch, every charging phone. This kontaminacija rides on the AC talasni oblik as harmonic distorzija, frekvencija drift, and napon sag. Your gramofon motor is a synchronous uređaj: its speed is locked to the frekvencija of the AC supply. When that frekvencija wanders, so does the tanjir. The Ekvatorijalni Motor Controller eliminiše this dependency u potpunosti by regenerating the AC napajanje from scratch, using a kvarc-locked oscillator as its sole frekvencija reference.

The kvarc reference nije samo temperatura-compensated — to je oven-stabilized, held at a constant 72°C inside a thermally insulated chamber unutar the kućište. This eliminiše the frekvencija drift that affects ordinary kvarc oscillators as room temperatura changes throughout the day. The regenerated sine wave postiže ukupna harmonička distorzija ispod 0.002% and frekvencija stabilnost of ±0.0001%, which translates to speed accuracy that premašuje the mjerenje capability of any commercially available wow-and-flutter meter. The front panel displays tanjir speed to six decimal places: 33.333333 RPM. If you ne može mjeriti it, you ne može control it. And if you ne može control it, you ne može tvrdnja to je correct.

A front-panel rotary encoder allows speed fine adjustment in increments of ±0.01 RPM, for those who have determined kroz careful mjerenje that their preferred pressing sounds most correct at a speed slightly different from the nominal standard. Ovo nije pitch control. To je a preciznost instrument for compensating the accumulated speed errors of the mastering lathe, the cutting head, and the stamper — none of which were operating at six-decimal accuracy. The controller pruža two outputs: one for the motor drive and one auxiliary output for powering peripheral uređaji that benefit from regenerated AC, such as fono stupanjs or preamps. Factory-set for either 110V or 230V operation.