Automatic tape degausser

Abstract:

Digital hquency meter, Type SA. 505. R ad Instruments Limited, Bracknell, Berkshire. The SAS05 uses transistor techniques in a compact, selfcontained instrument and is said to be suited to all laboratory applications in the fields of frequency, period and time interval measurement. A seven digit in-line projection display is incorporated which is arranged to display continuously. Facilities include direct frequency measurement of sinewave and pulse signals in the range 0-10 Mc/s, time interval measurement between two successive positive or negative going pulses in the range 0.1 ps to 104 seconds. Period measurement can also be made over 1, 10 and 100 cycles of the unknown frequency with an accuracy of up to 1 part in lo6. The accuracy of frequency measurement is+ 1 count _+ the stability of the intemal crystal which is 1 part in lo', provision being made for operation from an extemal frequency standard of 100 …

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