Power supply with 2 knobs

3110: 4 channel 24 Volt switched power supply controller for beacons/lamps

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2432: Practical bench power supply (Thurlby PL320)

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2525: Practical twin variable bench power supply with red digital displays

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2903: Practical laboratory Farnell triple power supply with bold red numbers & coloured terminals

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2537: Practical Grey Panel (Test Set Power Supply) with switches and lights

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2333: Practical laboratory power supply with red LED digital meter

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2534: Rextron Video (VGA) splitter/booster box, multiple monitor driver + power supply & cable

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2564: Practical Powerbox 3000B laboratory bench power supply

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2078: Navy/submarine/waterworks/power station/industrial gauges, meters & dials

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3420: Run of practical black "CB" type base station/vehicle transceiver radios with curly cabled fist mics

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3767: 1940s WW2 R208 radio panels with speaker grill, meter & large tuning knob

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6677: 1940s WW2 R208 radio panels with speaker grill, meter & large tuning knob

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4163: Naked extra high voltage power supply with glass valve, rubber sucker connector

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2688: Power electrical box with switches, lamps, knob & analogue meter dial

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2039: Large electrical temperature gauge with silver pointer knob

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