External pacemaker box in white & black with pointer knobs

2735: Practical large black electrical control box with coloured square lamps & adjustable current meter

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2125: Selection of electronics laboratory decade resistance & capacitance boxes with bold knobs

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2418: Broadband Isotropic Probe (White ball on stick with black handheld gadget)

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2428: Practical blue 6 inch square panel with illuminated buttons and 4 black knobs

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3205: Practical A4 size light boxes with black surround

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3166: Hand-held black box gadget with round screen & knobs

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2039: Large electrical temperature gauge with silver pointer knob

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3095: Giant black bakelite fluted knobs with removable calibrated skirt

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3301: Crate of thick black chunky cables with technical control boxes & connectors

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6588: Black Twinkly Desktop Box With Red & Blue LED's

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2372: 19" Black Rack Mountable Panel in Box with multiple switches

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3004: Practical control panel with illuminated meters, bold red lamps & large silver knobs

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2155: Large practical metallic blue electrical control box with switchable lamps

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2558: SciFi looking illuminated light box with bottom lit drawer and technical looking components

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2565: Practical Naval Submarine swivelling panel illuminator red/white lamps

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