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

[Dave Harmon]

There are 2 Johnson keyers on BAMA.
Years ago I did the same as you and saw the Viking 1 keyer and didn't look
any further.
The keyer we are concerned with is to the right of the Viking keyer.
Look again...

73

David Harmon
K6XYZ
Sperry, OK

-----Original Message-----
From: manualman at juno.com [mailto:manualman at juno.com] 
Sent: Monday, February 14, 2022 3:23 PM
To: k6xyzdave at gmail.com
Cc: johnson at mailman.qth.net
Subject: Re: [Johnson] FW: Will be restoring a Johnson Ranger**UPDATE

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
>