In Reply to: RE: Is this feasible? Rectifying 6.3v for heaters posted by Audio Pete on December 11, 2017 at 07:06:24:
Hi Audio Pete,
Linear Technology offers a regulator with even less drop (350 mv), The LT3080.
It is only good for 1.1 A but any number can be paralleled with relative ease.
There is one more caveat. To get the 350 mv minimum offset there is a "control" pin which must be biased a few hundred mv above the input pin. Kind of a PITA but I came up with a trick for the heater supply in my HK Citation 4. If you are interested I'll scan the schemo and send it to you or post it.
Phil
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- RE: Is this feasible? Rectifying 6.3v for heaters - coffee-phil 20:17:19 12/11/17 (20)
- RE: Is this feasible? Rectifying 6.3v for heaters - Audio Pete 07:23:29 12/12/17 (19)
- RE: Is this feasible? Rectifying 6.3v for heaters - coffee-phil 21:41:54 12/13/17 (17)
- RE: Is this feasible? Rectifying 6.3v for heaters - Audio Pete 07:40:44 12/14/17 (16)
- RE: Is this feasible? Rectifying 6.3v for heaters - coffee-phil 22:49:40 12/14/17 (6)
- RE: Is this feasible? Rectifying 6.3v for heaters - Audio Pete 12:27:54 12/15/17 (1)
- RE: Is this feasible? Rectifying 6.3v for heaters - coffee-phil 15:05:08 12/15/17 (0)
- RE: Is this feasible? Rectifying 6.3v for heaters - coffee-phil 23:15:24 12/14/17 (3)
- RE: Is this feasible? Rectifying 6.3v for heaters - Audio Pete 12:26:42 12/15/17 (2)
- RE: Is this feasible? Rectifying 6.3v for heaters - coffee-phil 17:56:31 12/18/17 (1)
- RE: Is this feasible? Rectifying 6.3v for heaters - Audio Pete 07:25:49 12/19/17 (0)
- RE: Is this feasible? Rectifying 6.3v for heaters - coffee-phil 09:48:26 12/14/17 (8)
- RE: Is this feasible? Rectifying 6.3v for heaters - Audio Pete 10:45:59 12/14/17 (7)
- RE: Is this feasible? Rectifying 6.3v for heaters - coffee-phil 18:26:21 12/16/17 (6)
- RE: Is this feasible? Rectifying 6.3v for heaters - Audio Pete 09:30:08 12/18/17 (5)
- RE: Is this feasible? Rectifying 6.3v for heaters - coffee-phil 17:35:37 12/20/17 (3)
- RE: Is this feasible? Rectifying 6.3v for heaters - Audio Pete 07:16:51 12/21/17 (2)
- RE: Is this feasible? Rectifying 6.3v for heaters - coffee-phil 14:28:51 12/21/17 (1)
- RE: Is this feasible? Rectifying 6.3v for heaters - coffee-phil 14:48:33 12/21/17 (0)
- RE: Is this feasible? Rectifying 6.3v for heaters - coffee-phil 15:44:30 12/18/17 (0)
- RE: Is this feasible? Rectifying 6.3v for heaters - Audio Pete 07:13:34 12/13/17 (0)