LDF5-320 PC board that supply a filtered, unregulated 320V DC at 9 ma (will supply up to 17 ma at a slightly lower  voltage at full load) from either 120V or 240V 50/60Hz AC. Includes power transformer on board. Sufficient high voltage current for a couple of preamp tubes such as 12AX7 or 12AU7 at least. Measure 3 3/4 inch (96 mm) long by 2 1/2 inch (64 mm) wide by 1 1/2 inch (38 mm) tall. Mount on #6 standoffs (not supplied) By Tom Mitchell/Media Concepts.
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