[Johnson] Need information on original Ranger

[Chris Farley]

In your manual, there is a diagram showing tube locations, which are then identified in the parts list.  In the event your manual is missing pages, it may be found as the first PDF file here:https://bama.edebris.com/manuals/johnson/ranger/Pages 28 and 38 are of interest.   
6146B will work just fine.  
For tubes, contact Bob for the best prices out there http://www.hamtubes.com/
Yes 6AU6 And 0A2 are inside the VFO housing, along with the so-called chernobyl resistor you will want to replace with a 5-10W rated wire wound resistor.  
Good luck!
Regards, Chris kc9ieq

Sent from Yahoo Mail on Android 
 
  On Sat, May 21, 2022 at 2:07 PM, donhellen at roadrunner.com<donhellen at roadrunner.com> wrote:   Can someone point me to a tube layout diagram for the original Johnson Ranger,
please?

I think there was some tube substitution done before I became the new owner of
this. It is not a Ranger II. The schematic I found online has some tubes that do
not match the one I have. I believe there were changes made throughout the years
so what I see may be correct for the iteration of the radio. 

One other thing is that there is a 6146B in it. Do these neutralize with the B
version of the 6146? I know some radios made in that era would not work well
with the B version of this tube.

I checked the various tubes that were in the radio and will need to order some.
Several have low output, two of them have good transconductance but on one or
more switch positions on the short checker they show a short. Some are OK for
all checks. I want to make sure the correct tubes are in the radio and also in
the correct locations. A tube layout picture or diagram would help. 

I did not open the VFO compartment, so are there two tubes inside there,
including a VR tube that I don't otherwise see outside the VFO box?

I did a variac slow power up and nothing burned but it did not work. I forget
what I saw when following the directions in the manual to tune up but I want to
work on the tubes first, then see about making other changes or repairs. 

If you have a good source of tubes I would like to add it to my notes and
browser bookmark.


Donald KX8K



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