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Mike Osc AM radio transmitter?
#6

Stacking the silicon diodes roughly duplicates the drop across the selenium rectifier, which is basically a stack of diodes in itself. I like the idea of using at least two diodes in series if you are using 1 amp diodes for a safety measure against shorts, this is probably overkill with the 3 amp ones but even those are cheap enough. Some people like using a Zener diode across the filament string rather then adding the dropping resistor in series, I haven't tried this but can see how it would work. With regular silicon diodes connected this way there is less to figure out as the forward drop is fairly consistent, I did this with one of those Electro battery eliminators after the dry metal rectifier failed in the A+ supply, shunt regulation is what it's called I think. One other thing, by using silicon diodes you will need a terminal strip to mount them, which means that you may as well get rid of the hot chassis hookup whilst you are at it.
Regards
Arran


Messages In This Thread
Mike Osc AM radio transmitter? - by TV MAN - 01-29-2018, 05:57 PM
RE: Mike Osc AM radio transmitter? - by Arran - 01-30-2018, 04:52 AM
RE: Mike Osc AM radio transmitter? - by David - 02-01-2018, 09:29 AM
RE: Mike Osc AM radio transmitter? - by TV MAN - 02-01-2018, 03:03 PM
RE: Mike Osc AM radio transmitter? - by Arran - 02-01-2018, 10:04 PM
RE: Mike Osc AM radio transmitter? - by TV MAN - 02-15-2018, 11:35 AM
RE: Mike Osc AM radio transmitter? - by TV MAN - 02-15-2018, 11:55 AM
RE: Mike Osc AM radio transmitter? - by TV MAN - 02-15-2018, 10:43 PM
RE: Mike Osc AM radio transmitter? - by TV MAN - 02-17-2018, 06:37 PM
RE: Mike Osc AM radio transmitter? - by 35Z5 - 02-23-2018, 11:03 AM
RE: Mike Osc AM radio transmitter? - by TV MAN - 02-23-2018, 07:37 PM
RE: Mike Osc AM radio transmitter? - by 35Z5 - 02-23-2018, 09:28 PM
RE: Mike Osc AM radio transmitter? - by TV MAN - 02-24-2018, 02:05 PM
RE: Mike Osc AM radio transmitter? - by TV MAN - 02-24-2018, 06:01 PM



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