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Old 28th February 2012, 06:32 PM   #1
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Default Bridge upgrade to Schottky (or similar) diodes query

Hi I have a pair of semi-historic Rotel RB850s and will perform some standard upgrades to refresh things a bit. Do people have suggestions for the best diodes to use to replace the standard rectifier bridges? I have read that good potential replacements include OnSemi MSR1560G 15A 600V ultrasoft recovery diode; MUR420; MUR860; MUR1560; MUR1520. Any suggestions? The power rail fuses are rated at 4 amps and the power supply provides 41.6VDC after rectification, so there is approximately 30V AC on each leg of the secondary referenced to ground.
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