knobs for switches for sale, brand-new and used.

Dwyer 3002AV Photohelic Pressure Switch/Gage range 0-2.0" w.c. A3000

Dwyer Instruments - Series A3000: A3003 Photohelic Pressure Switch/Gage • Air Conditioner Systems • Clean Rooms • Fume Exhaust Systems Photohelic Switch/Gages function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic gage design. The Photohelic switch/gage measures and controls positive, negative or differential pressures of air and compatible gases.

This 1405 NTSC Television Sideband Adapter is used, has been well maintained and is fully operational within the manufacturer's specifications. The complete user manual with schematics is include in the purchase. Description/specifications: The 1405 NTSC Television Sideband Adapter is an accessory instrument which is used with a spectrum analyzer, such as the 7L12 or 7L13, to analyze the video output of a television transmitter.

Item is used. Unit comes on and display works as pictured when power is applied. Not sure of use but knobs and switches seem to operate.

TESTING & COSMETIC NOTES:

Wavetek LAN 450D Signal Analysis Meter Up for auction is a used Wavetek LAN 450D Signal Analysis Meter. This item is in good condition with some minor cosmetic wear from normal use. There are a few minor scratches on the item but this does not effect the functionality of the item.

This Ebay item is equipment by Multimetric Industries of Richmond Hill, NY. IT is a used Multimetrics model # AF-120. This powers up fine & the red power light comes on.

This Ebay item is equipment by E & H Research Lab's Inc. IT is a E & H model # G720 Mos Driver with a E&H probe # G70A-2 as pictured. This powers up fine & the red power light comes on.

This Ebay item is used equipment by International Light. IT is a International Light model IL 730A. Its powers up fine & the display is bright.

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HP 430C Microwave Power Meter Serial No. 005-09942 Good condition. Scratches and marks from storage & use.

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This Ebay item is used equipment by Tektronix. It is a Tektronix D12 Dual Beam Oscilloscope with -3- plugins ( 5A14N Four Channel Amplifier, 5A18N Dual Trace Amplifier & a 5B10N Time Base Amp ) as pictured. This does powers up & we can get a signal to display on the screens as pictured.

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