[AMPS] Henry 2K and Henry 2K-2

[km1h@juno.com]

On Sat, 21 Nov 1998 20:17:01 -0800 "Jim Heath" <jimheath@foothill.net>
writes:
>What is an old Henry 2K from 1964 worth?  The plate current meter has 
>been replaced with a Shurite (sure-wrong) meter. It is about a 7 out 
>of 10.  It still has 3-400z's.  The plate transformer is now a Peter 
>Dahl.  There are no other mods.  It even has the old 3B28's.

Around here you can find them complete and original for $400 or so.


>Also, what is a Henry 2k-2 from 1972 worth?  It is about an 8 out of 
>10. It too still has 3-400z's.

Not too much more. It is getting hard to find homes for heavy iron these
days unless it is a collector.

>
>Any advice on converting either of these to 3-500z use is welcome.  
>Neither has bias.  I just happen to have some 3-500z's and no 
>3-400z's.

Neither has operating bias but they do have cut-off bias. Lift the
operating bias lead and replace with a reverse connected string of
1N5408' s to give around 220ma idle current. Or a 50W zener.

I forget which one of the models requires a different plate cap for
clearance...think its the 2K-2. You can buy the low profile ones from
Omega Electronics since they were used by Amp Supply....or adapt a
transistor heat sink.

73  Carl  KM1H


>
>Thanks!
>
>Jim KB6SX
>

___________________________________________________________________
You don't need to buy Internet access to use free Internet e-mail.
Get completely free e-mail from Juno at http://www.juno.com/getjuno.html
or call Juno at (800) 654-JUNO [654-5866]

--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm