Amps
[Top] [All Lists]

[AMPS] 4CX400 Conversion of AM-6155

To: <amps@contesting.com>
Subject: [AMPS] 4CX400 Conversion of AM-6155
From: lanej@provide.net (John Lane)
Date: Tue, 18 Mar 1997 23:37:43 -0000
Here are the results of my implementation of the 4CX400 in the144Mhz
conversion of the ) AM-6155.  
1)  10 watts yields 500 (supplies set for 240V)
2)  -44 volts bias yields 100 mA plate idling current
3)  Observed efficiency:  65%
3)  Bias voltage divider changes:  R14 = 15K, R16= 4.7K 
4)  Paralell C2 with C1 on bias board.  (These caps may need to be replaced
on many amps due to their age.  I suspect bias instability may be due to
these caps failing in some cases.)
E-mail direct for more details -- John Lane, W8KX

--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Sponsored by:             Akorn Access, Inc. & N4VJ / K4AAA

<Prev in Thread] Current Thread [Next in Thread>
  • [AMPS] 4CX400 Conversion of AM-6155, John Lane <=