Hi Paul and List,
Actually, the 251 is a fully regulated supply. It is almost the same
as the 252 (18 amp) supply, and its variations (252 G, 252 M, etc.),
except it has a smaller transformer, smaller filter cap, etc. All of
the 251s were regulated.
I think the one you are referring to is the 250 (its been about 30
years, so my memory may not be correct). Not too many of them were
In any case, the 251 is the same size, color, and styling as the 405
amp, and matches it perfectly.
E-Mail to W8EK@usa.net or W8EK@fdt.net
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From: Paul R. Valko <email@example.com>
To: Ken Simpson <W8EK@usa.net>
Cc: VSS List <firstname.lastname@example.org>; TenTec List
Date: Saturday, February 13, 1999 9:42 PM
Subject: Re: [TenTec] TenTec Power Supplies FS
>On Sat, 13 Feb 1999, Ken Simpson wrote:
>> TenTec 251 Power Supply - rated at 9 amps, 13 V DC. Matches the
>> Argonaut 505/509 and 405 amplifier in styling and color. Was made
>> power the Argonaut with the amplifier, but can also be used for
>> things, such as 2 meters rigs. Great shape. Manual included. $
>If any of you have dreams of building a clasic QRP setup including a
>and 405 amp, you will NEED this almost impossible to find supply.
>only ever seen two, and I bought one of them.
>Ten Tec build lots... they were modified by hams and used for other
>functions because the 9A 12vdc output is NOT regulated... it just
>the amp. Unless this one has been modified to provide a 9A regulated
>output, I would NOT suggest you use it for a 2M rig (maybe an HT).
>There is a separate 12vdc 1amp regulated output for the Argo 505/9 on
>back. It's really rare... hop on it.
>73! =paul= W8KC
>Collector of Ten*Tecs and other fine plastics
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