[GreenKeys] Rectifier voltage question...

[Dave Wade]

> -----Original Message-----
> From: greenkeys-bounces at mailman.qth.net <greenkeys-
> bounces at mailman.qth.net> On Behalf Of Peter Gottlieb
> Sent: 18 September 2019 04:19
> To: E. <hanyou at xsmail.com>
> Cc: Robert Downs via GreenKeys <greenkeys at mailman.qth.net>
> Subject: Re: [GreenKeys] Rectifier voltage question...
> 
> 1N4007’s would be fine.
> 

Don't selenium rectifiers have a high voltage drop, about 2v per plate. Won't simply replacing by silicon make the output voltage much higher.

Dave
G4UGM


> 
> Peter
> 
> > On Sep 17, 2019, at 11:15 PM, E. <hanyou at xsmail.com> wrote:
> >
> >
> > Thanks for all of the responses to my question!
> >
> > For one question that was asked… the voltage range for this rectifier reads
> 105 to 125VAC.  There are solder lugs on the AC side - ones that jump 5 volts
> each, from 105 to 125.  Currently, it’s soldered to 120.  The output on the DC
> side reads 115 on the plate.
> >
> > …then a question of my own… could someone please point me in the direction
> of a good silicon diode (or two - there are two on this rectifier) to use, in place
> of the Seleniums (maybe on Mouser)?  Probably mean more rewiring, since all
> of that wiring is as brittle as all get-go, but so be it ;p .  I’d like to keep this
> rectifier as close to being as it is as possible :) .
> >
> > Thanks again and cheers ^^ !~
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