Sinclair Frequency Meter PFM200

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The Sinclair PFM200 frequency meter measures signals within the frequency band 20Hz to 200 MHz. It uses the same case as the Sinclair Oxford calculator case.

The frequency meter itself is branded Sinclair Radionics but came with a Thandar-branded service manual. The Sinclair Radionics name was used up until September 1979, when it changed to Sinclair Electronics by the National Enterprise Board (NEB). In January 1980 the company's name was then changed to Thandar Electronics by the NEB.

Date : Unknown

Manufacturer : Sinclair Radionics

Format : Multimeter

Physical Description : Frequency Meter, Owner^s Manual, Service Manual PFM200 Connector Pack instruction sheet

This exhibit has a reference ID of CH72461. Please quote this reference ID in any communication with the Centre for Computing History.

Scan of Document: Sinclair Frequency Meter PFM200

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