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Original Message
RE: BDT Preamp Schematics
Posted by John Swenson on May 17, 2008 at 00:24:04:
Aha, the "I" stands for "Insulated", the tab is insulated from the pins so you can screw it into a heatsink without needing mica insulators, nylon washers etc. Especially with the high voltages floating around these circuits I like to not have the HV where I could touch it!
John S.