The Mystery Turbo Feature of 1990s Whelen Edge Power Supplies
Around the time when Comet flash supplies were gaining extra patterns and helix style inboard bulbs were going away a feature called "turbo" showed up on Whelen edge power supplies for a few years. What was it for? Was it designed to up the power to the "turbo" linear tubes? This video explores this feature which is essentially adds a third power level to these supplies.

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