If it is one of the newer switching type he may
73
Mike - N7ZEF
- Original Message -
From: "Doug Bade" <[EMAIL PROTECTED]>
To:
Sent: Wednesday, March 28, 2007 10:20 AM
Subject: RE: [Repeater-Builder] 220VAC Astron
Gary;
I know the 120v versions are as y
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] 220VAC Astron
It is more expensive to provide a dual primary transformer so Astron
supplies single primary transformers. You either order it for 120 or 240, no
switching back and forth.
On way to still use the supply on 120 may
$15.00 or so.
73
Gary K4FMX
> -Original Message-
> From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
> [EMAIL PROTECTED] On Behalf Of Doug Bade
> Sent: Wednesday, March 28, 2007 12:20 PM
> To: Repeater-Builder@yahoogroups.com
> Subject: RE: [Repeater-Builder] 220VA
AM
> > To:
> <mailto:Repeater-Builder%40yahoogroups.com>Repeater-Builder@yahoogroups.com
> > Subject: [Repeater-Builder] 220VAC Astron
> >
> > I recently took delivery [an eBAY item] of a rack mounted Astron model
> > RM-20MBB-220 20 amp power supply that is
lder@yahoogroups.com
> Subject: [Repeater-Builder] 220VAC Astron
>
> I recently took delivery [an eBAY item] of a rack mounted Astron model
> RM-20MBB-220 20 amp power supply that is wired for 220 vac. I have no
> schematic [yet] on this unit however I did find a similar power supply
The secondary DC after capacitors in a "normal" astron ( using its
correct input voltage ) is about 26 vdc after filtering and across
the capacitors.. If you run a 220 astron at 120vac , the voltage
would be half or so, or ~13vdc. This is not enough overhead to
"regulate" but the regulator will
I recently took delivery [an eBAY item] of a rack mounted Astron model
RM-20MBB-220 20 amp power supply that is wired for 220 vac. I have no
schematic [yet] on this unit however I did find a similar power supply
schematic [RM-50MBB] that shows a standard primary and standard
secondary with no provi
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