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Parts by Number Top

Part # Distributor Manufacturer Product Category Description
290QX Digi-Key Hammond Manufacturing Transformers TRANSF TUBE GUITAR AMP POWER
291CEX Allied Electronics, Inc. HAMMOND MFG Not Provided transformer - tube guitar amp - power

Conduct Research Top

  • The Good Old Power Resistors
    of high-voltage power transformers could put you to sleep. If a current needed "tweaking" you looked at a 3-inch panel meter, and took control with a knob you could get your whole fist around!
  • Green Technology: How to power an energy-efficient light
    if it weren't for electronics able to economically drive these bulbs. And there are still lessons being learned about how to get the cost out of illumination systems. Take fluorescent lighting, for example. The old-time ballasts powering fluorescent tubes were little more than transformers that energized
  • The `Good Old` Power Days (.pdf)
    of high-voltage power transformers could put you to sleep. If a current needed "tweaking" you looked at a 3-inch panel meter, and took control with a knob you could get your whole fist around!. Power resistors were big wirewound guys. They had hollow cores and were covered with shiny brown enamel
  • Current State of Surge Testing Induction Machines
    transformers to charge large high voltage capacitors. Today's instrumentation uses high-speed digitizers to observe the entire waveform. Instead of a work bench, a 50lb portable enclosure contains the entire instrument which include small high voltage power supplies, power semiconductors for switching

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