[ARC5] Power Supplies for the ARC-5 Rx...and others.

[Henry Mei'l's]

Or you might happen to have an old fashioned multi-winding 120-130V xfmr 
with 12V & 200-300V c.t. windings and just
take your HV from either the full HV winding or the CT, depending on the HV 
DC level, desired. Or, you may be using
a tube-style outboard converter, preamplifier, Q-multiplier from which you 
can tap off your Command rcvr.
HV. Or, from the PA s.g. or osc. anode HV, if you're using a tube-style 
xmtr. I tap HV for some of my Command receiver from the multiband tube 
converter I operate in tandem with the receiver(s).

My model-train transformer 'backwards-fed' filament xfmr PS could be used
as a continuously variable HV soure if you want to check performance at 
different HV levels.

Henry, Cph.


----- Original Message ----- 
From: "Glen Zook" <gzook at yahoo.com>
To: <kgordon2006 at frontier.com>; <Arc5 at mailman.qth.net>; "Bob Macklin" 
<macklinbob at msn.com>
Sent: Saturday, January 29, 2011 8:34 PM
Subject: Re: [ARC5] Power Supplies for the ARC-5 Rx...and others.


> You can also wire a couple of appropriate filament transformers "back to 
> back" (using the filament winding for the common connection).  Take the 
> heater/filament voltage from the common connection and then use the 
> primary of the transformer that is NOT connected to the AC mains as the 
> "high voltage" transformer.  With a full wave bridge rectifier this will 
> give you plenty of voltage to run the receiver.
>
> I have several power supplies made as such that I use for tube-type VHF 
> converters, small receivers (i.e. ARC-5), etc.
>
> Glen, K9STH
>
> Website:  http://k9sth.com
>
>
> --- On Sat, 1/29/11, Bob Macklin <macklinbob at msn.com> wrote:
>
> Consider that a 120VAC isolation transformer with a bridge rectifier and a 
> capacitive input filter will give you about 170VDC.
>
> You could use one of these with a 12V or 24V transformer for the 
> filaments.
>
>
>
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