[ARC5] BC-454-B Power

[Mike Feher]

Brian - 

You have to be kidding. You are saying that doubling the current in the
filament wiring is bad and they will overheat? It does not take any heavier
gauge wire for that small current in either case. This discussion has really
gone on too long and deteriorated rather than helped. 73 - Mike 

Mike B. Feher, N4FS
89 Arnold Blvd.
Howell NJ 07731
848-245-9115

-----Original Message-----
From: arc5-bounces at mailman.qth.net <arc5-bounces at mailman.qth.net> On Behalf
Of Brian Clarke
Sent: Monday, July 19, 2021 11:18 PM
To: 'Kenneth G. Gordon' <kgordon2006 at frontier.com>; 'MICHAEL BITTNER'
<mmab at cox.net>; arc5 at mailman.qth.net; 'Robert P. Meadows'
<rpmeadow at bellsouth.net>
Subject: Re: [ARC5] BC-454-B Power

Hello Ken,

The 6F6 metal tube has the same dimensions as the 12A6.

Converting to 6 V tubes puts a heavier load on the heater wiring and remote
control switch. Not good.

The Australian government had Command receivers' heater circuits rewired for
the Avro Anson aircraft, which is a 12 V machine. And then used DM-53Z 12V
dynamotors.

<snip>

I know that too, Brian, but the 6F6 is a much taller and fatter tube and
won't fit in the radio with the covers on.

In any case, as far as I am concerned, converting the radio to use either 6
V tubes, or to change to all parallel filaments are really stupid ideas.

Ken W7EKB

Cheers, Brian, VK2GCE

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