[Boatanchors] reduce power on ranger

[Jbrannig at verizon.net]

Search engines are wonderful things...........

>From the BAMA archives


http://bama.edebris.com/manuals/johnson/250-24/


Jim

-----Original Message----- 
From: David Knepper
Sent: Tuesday, December 24, 2013 6:24 AM
To: mac ; Boat Anchors List
Subject: Re: [Boatanchors] reduce power on ranger

Has anyone mentioned a power attenuator that E.F. Johnson offered?  Just an
idea!

Two connections:  one to the output of the Ranger and the other to the input
of the amplifier.

A wonderful late E.F. Johnson catalog can be found on the Internet.  See
page 16 for a description of these attenuators:

http://www.we0h.us/Amateur_Radio_stuff/Books/EF-Johnson-Catalog/EF-Johnson-Catalog.pdf

I am sure that some engaging technician on this mail list could provide us
with the circuitry and parts list.

Have a Wonderful CHRISTmas


David Knepper - W3CRA/W3ST
Collins Radio Association
www.collinsra.com
Join the CRA today
-----Original Message----- 
From: mac
Sent: Monday, December 23, 2013 10:22 PM
To: Boat Anchors List
Subject: Re: [Boatanchors] reduce power on ranger



How about just moving the connections to the plates of the 5R4 HV
rectifier down to the taps on the on T1 that feed the 6AX5 LV
rectifier.  Might have to adjust  the screen voltage tap on R23 up a
bit as well to get things working right at the lower voltage.

Dennis D.  W7QHO
Glendale, CA

______________________________________________________________
Boatanchors mailing list
Home: http://mailman.qth.net/mailman/listinfo/boatanchors
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Boatanchors at mailman.qth.net

List Administrator: Duane Fischer, W8DBF
** For Assistance: dfischer at usol.com **


This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

______________________________________________________________
Boatanchors mailing list
Home: http://mailman.qth.net/mailman/listinfo/boatanchors
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Boatanchors at mailman.qth.net

List Administrator: Duane Fischer, W8DBF
** For Assistance: dfischer at usol.com **


This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html