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No cooling fan, is a sealed case rated to 35,000 feet with derating curves given in the manual. The only power requirement is 28V at 20A max. that I will supply with an Acopain linear supply, was advised to not use a switcher due to noise problems.
All I have to go is make up a panel for the control head, speaker, volume control, microphone, and wire the PTT and microphone lines to the exciter. Am now debating what to make the panel from, an aluminum box or plywood. This should be small enough to fit between my R390 and linear, think I will hunt my wood pile for a piece of walnut veneer plywood.
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