[Johnson] FW: Will be restoring a Johnson Ranger**UPDATE

[manualman at juno.com]

The only keyer mod I saw on BAMA was for the Johnson Viking I and II and
VFO 122.

For those that have their pencils out, the first Ranger schematic that
was issued, and did not have the keyer mod added, was dated 7/24/54.
The keyer mod addition to the Ranger was offered to customers shortly
after 11/1/54. The keyer mod schematic is dated 10/28/54.
All Rangers, factory wired or kitted after 11/15/54, had the addition of
the keyer modification.

Very easy way to tell if you have the keyer mod in the Ranger. Remove the
Ranger from the cabinet. Look straight down right over the VFO. Look to
the left of the VFO.  Over the Mode switch is an added chassis with two
tubes on it. That's the keyer mod. Simple! Don't even have to trace out
any wires.
One tube, 12AU7 is the keyer and the other tube, 6AL5, is the bias
rectifier. The -28 volts modulator bias is fed to the 6AL5 where the
negative bias is doubled to -56  volts to feed the keyer. Saved Johnson
from having to diddle around with the existing power transformer or
adding another small power transformer and parts.

Pete, wa2cwa
www.manualman.com

 

On Mon, 14 Feb 2022 09:50:25 -0600 "Dave Harmon" <k6xyzdave at gmail.com>
writes:
> The installation and schematic info for the Ranger keyer is on BAMA.
> I dunno how I missed that before!
> 
> 73
> 
> David Harmon
> K6XYZ
> Sperry, OK
> 
> 
> -----Original Message-----
> From: Dave Harmon [mailto:k6xyzdave at gmail.com] 
> Sent: Monday, February 14, 2022 8:53 AM
> To: 'johnson at mailman.qth.net' <johnson at mailman.qth.net>
> Subject: RE: [Johnson] Will be restoring a Johnson Ranger
> Importance: High
> 
> About 30 years ago I acquired by a roundabout way a first version 
> Ranger
> that had the keyer kit installed.
> To avoid a looong discussion of how I got involved with that 
> ckt....I can
> say that the way to determine if the keyer kit was added is to look 
> at T3.
> The original first version of the Ranger does not have a T3 
> secondary tap
> from the keyer bias.
> The next version schematic dated 11-5-54 shows the keyer and T3 
> tap.
> I've never been able to find any installation info from the kit for 
> the
> keyer.
> I still have this Ranger and plan to service it again soon.....for 
> the 3rd
> time!
> There were 3 published schematics for the Maroon colored 
> transmitter, the
> original had no date, next was 11-5-54, then 10-17-57.
> Great transmitter.
> The Ranger ll that had 6m is a different transmitter.
> 
> 73
> 
> David Harmon
> K6XYZ
> Sperry, OK
> 
> 
> -----Original Message-----
> From: johnson-bounces at mailman.qth.net
> [mailto:johnson-bounces at mailman.qth.net] On Behalf Of 
> hamfish at comcast.net
> Sent: Monday, February 14, 2022 7:58 AM
> To: 'William Cromwell' <wrcromwell at gmail.com>; 
> johnson at mailman.qth.net
> Subject: Re: [Johnson] Will be restoring a Johnson Ranger
> 
> So far there is one item not mentioned in the comments. The Ranger 
> was
> introduced in 1954 and does not have grid block keying. Some refer 
> to this
> model as a "Ranger". I have one it was built as a kit and has 160 
> thru 10-11
> meters. From other accounts grid block keying was added in 1955. 
> Check your
> ARRL handbooks! This model has the same paint scheme and bands. EF 
> Johnson
> later offered grid block keying kits to modify the 1st version of 
> Rangers.
> At this point do we have a Ranger and a Ranger 1????????????? Does 
> it
> matter???? How does one know if the grid block keying kit was added 
> later???
> Then later EF Johnson offered the Ranger 2 (different paint scheme, 
> 6 meters
> rather than 11 meters). 
> 
> Label them as you please, just know what you are working on, use the 
> correct
> schematic. Have fun!
> 
> Regards,
> Craig
> WD8KDG
>