开云体育

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



----------------------------------------------------
Some ham radio groups you may be interested in:
/g/ICOM /g/Ham-Antennas
/g/HamRadioHelp /g/Baofeng
/g/CHIRP

Selling is allowed in this group for ham radio equipment only, and at least one of the items for sale must be related to the purpose of the group. We require that anything being sold here have a price with it. So "make offer" or anything like that will not be an acceptable post here. Please indicate if shipping is included, otherwise leave it out. Also, please indicate the general location of the equipment for sale, so others will know if it’s within driving distance for them, and if you're willing to meet someone X miles away from that location.

If you have any information about the item, please add it, as it will make it more likely that it will sell.

Just list similar to the following. This was a suggestion for the SWAN-AMATEUR-RADIO group. Just replace the Swan item with one that would fit the purpose of this group:

Swan 350D, great cosmetic condition, may need new final tubes since output drops somewhat on 15 and 10 meters. Model 117XC AC power supply included. Asking $325.00 OBO. Located near Charlotte, NC. Will drive up to 25 miles from Charlotte for pickup or delivery. Call 444-444-4444, or email hamoperator@....

Hello
?? We are looking for case(s) for Johnson Rangers, paint condition is not a deal breaker, neither is all hardware ( feet, chassis slide rails) missing. nor are various holes drilled by past owners.? Johnson Rangers, ( I & II) and Couriers ( and perhaps more) used the same case.
?? We happily pay shipping and love to negotiate prices, plus we are doing a domestic service by helping you clean out your pile of old cases thereby increasing domestic tranquility.
Thank You
Kiss Electronics
Ms Ashley Hall
Owner
W7DUZ ( Find us on QRZ)

Charlie . . .

On Sun, 1 May 2022 19:49:30 -0700, "Charlie Porter" <caribou42w@...>
wrote:

I have several 53SL ES mobile radios that I am trying to program.

I'd suggest also posting this in the amateur-repairs group to increase the
exposure of your post to more people. I can't think of another useful group
unless there's one on the qsl.net email lists.

Donald KX8K



----------------------------------------------------
Some ham radio groups you may be interested in:
/g/ICOM /g/Ham-Antennas
/g/HamRadioHelp /g/Baofeng
/g/CHIRP

--
Charlie - N6JOA

Looking for an original V2 manual in excellent to new condition. Please contact off list at QRZ email.

Thanks,

Rick
K8EZB

New to the group and looking for some stuff to get a newly restored EFJ Viking SSB adapter and Valiant II working as part of a vintage station. Looking for:

> original SSB Adapter manual in good or better condition (I have a downloaded version from the BAMA website)
> interconnect cable between SSB Adapter and EFJ adapter power supply
> J202 five pin plug in useable condition

?I have recently obtained and am restoring a rare original EFJ PS for the SSB adapter. This PS is in good overall condition but needs some minor work.

Thanks,
Rick
K8EZB

I am about to break up two of these transmitters for parts.
If there is somethiung you would like please email me directly.
My email address is good on QRZ dot Com

On Mon, 31 Jan 2022 09:24:22 -0800, "B" <btrains@...> wrote:

I have a VHF 5000 that has had its EEPROM wiped with no firmware installed at all. I need to find a way to load firmware onto this radio to get it to work again. Also, speaking of firmware, I was told the 5000/Stealth 25 has an Easter egg of the Nebraska Cornhuskers fight song if you press a certain button code. Is this true? What is the code?

You might also try posting this in the amateur-repairs group. This is a rather
small group still in its growing infancy.

Donald KX8K



----------------------------------------------------
Some ham radio groups you may be interested in:
/g/ICOM /g/Ham-Antennas
/g/HamRadioHelp /g/Baofeng
/g/CHIRP

I have a VHF 5000 that has had its EEPROM wiped with no firmware installed at all. I need to find a way to load firmware onto this radio to get it to work again. Also, speaking of firmware, I was told the 5000/Stealth 25 has an Easter egg of the Nebraska Cornhuskers fight song if you press a certain button code. Is this true? What is the code? Thanks.?

I have been working on two projects.? I acquired a EF Johnson Viking II that was at some point used in a high school station. It had a bat handled switch mounted on the front panel upper right corner to lower the power down to 75 watts for a NOVICE operator at the school.? The three power supply tubes were missing and one 6146 had a loose plate cap as well as with one of the 807 modulator tubes.? All the internal parts for the most part were original.? The cabinet paint was not in good shape either.? That was the starting point for the transmitter.? So far I have painted the lower cabinet panel with copper paint, and plugged the holes in the front panel and primed it.? It's ready to have the top gray portion painted.? (All the lettering has been masked with pin strip tape.)? I plan to paint the top and bottom of the front panel with matched gray and maroon paint.? Plus paint the cabinet with matched maroon paint.? I had Sherwin-Williams match these three paints for me.? I'll be using the PREVAL spray system to apply the paint. ? While doing the above, I have acquired all the resistors and capacitors needed to re-furbish the electronics.? I did repair the two tubes with loose plate caps using muffler cement.? The tubes that were in the transmitter test out good on my TV-7 tube tester.? But, I have spares if needed.? I'll also be applying lithium grease to the detente portion of the rotary switches and applying conductive grease to the roller inductor roller.? I've already cleaned up the dust on the chassis and cleaned and lubricated the audio pot.? Most likely will clean switch contacts with De-oxide cleaner too and oil the variable capacitor bearings.? I've acquired the needed coax to replace the RF output and VFO input coax cables as the originals look to be in bad shape. ? The chassis cleaned up very nicely.? I also picked up a couple new bat handle switches to replace the badly corroded originals.? I most likely will repaint the five transformer bell housings once the restoration is complete.? When finished, this transmitter should look very nice and work like new!

Besides this, I have been restoring a Hallicrafters SX-71 to match and go along with the Viking II.? When I was a 14 year old kid back in 1953 I think every other General Class license holder or above used a Viking II and SX 71.? Or at least it seemed that way.? They were a very very popular combination.? So far I have replaced all but two resistors and all the paper and electrolytic caps in the receiver.? I had to remove the front panel and re-string the main slide rule dial too.? That is where I am with it right now.? I don't trust the silver mica caps in the IF transformers, so I think replacing the caps after removing the IF cans will be my next step.? Then a re-alignment.

I'll also replace the line cords with three wire ones and will be using a 2000 watt variac to run these units on 115 volt mains. (My line voltage here is close to 125 volts.)? In the mean time, I'll be looking for a? Johnson 122 VFO for the Viking II.? When finished,? I should have a very nice working 70 year old station. I'm really looking forward to using this station set up.? If anyone has a reasonably priced Johnson 122 VFO with nice front panel let me know.? I'd be interested in it.? Some time ago I refurbished a Johnson TR switch, so it should go nicely with the pair too.? It's a lot of work, but enjoyable.? I'm just slowly doing one thing at a time.? Eventually I'll be done and can enjoy using the pair.

Lee, w0vt/w5drc

w5drc@...

On Mon, 22 Nov 2021 20:36:05 -0600, "Lee Bahr" <leebahr@...> wrote:

Thanks, Don.

I just looked for the first time and there are a bunch of mailing lists hosted
there, all for amateur radio related topics.



There's no way to know if a group is active or not but it costs nothing to sign
up for these and if they're inactive, it won't fill up your inbox.

There's no file storage, but that's now true of new free (basic) groups on
groups.io created after February 2021 (I don't remember the date but it was in
February).


Donald KX8K


----------------------------------------------------
Some ham radio groups you may be interested in:
/g/ICOM /g/Ham-Antennas
/g/HamRadioHelp /g/Baofeng
/g/CHIRP

Thanks, Don.

Lee, w0vt

Lee,

I was hoping someone here would have that information, as I might pick up a
Viking sometime for myself.


You might try the Johnson mailing list:




Donald KX8K



On Thu, 11 Nov 2021 14:12:40 -0800, "Lee Bahr" <leebahr@...> wrote:

Does anyone on here have the factory mods sheets sent out by EF Johnson for their Viking II transmitter?? I sure would like a copy of them.
Lee Bahr, w0vt
w5drc@...

----------------------------------------------------
Some ham radio groups you may be interested in:
/g/ICOM /g/Ham-Antennas
/g/HamRadioHelp /g/Baofeng
/g/CHIRP

Does anyone on here have the factory mods sheets sent out by EF Johnson for their Viking II transmitter?? I sure would like a copy of them.
Lee Bahr, w0vt
w5drc@...

I won't change my oil filled cap either, I think the consensus is that they are OK as is.?
Just wanted to 'close the loop' on this from an Archive point of view.. and not leave some perceived Fake News or Disinformation on the topic.
Mine had a wee bit of stuff around the seam but once I wiped it off it has not returned after about 9 months of sitting and waiting for Cap surgery.
tnx
Brian VE3HI

I am not going to replace the oil filled capacitor in my Viking II I am now restoring.? It's not leaking and I doubt it will ever leak in my lifetime.? I want to keep the transmitter as original as possible.? Besides that, the PCBs don't concern me in the least.? Too little in there to worry about if a clean up would be ever required and I am not dealing with PCBs on a daily basis.? If I wanted to replace it, I'd make up my own board for pennies.

Lee, w0vt

Similarly I have a Viking II on the way to being refurbished - caps and such.
I got it last winter but that was just about the time that the weather was opening up soon-ish, so once that happens I put indoor projects on the back burner.
In any case, I intend to order the caps for it sometime in the next week to be ready to get at it.

One thing of interest to me was the situation with the oil-filled bathtub capacitor. I asked around a bit and the general consensus was to leave it along, but there are others who are concerned that it does usually have a PCB oil and it is also corrosive if it starts to leak (after all these years).
I just wanted to state that Terry Dayton at D Labs has put together a replacement board.. a video link is below.
I don't know yet what? his price is or have any comments yay or nay on it.
Once can do the same themselves with decent caps and balancing resistors I think (I've yet to fully digest the balancing resistors info such that I could do it).


In the past I had collected a couple Viking II but they were moved on to local boatanchor guys when I figured I was not going to do AM, and had a multi year house renovation to be working on as my own labourer...HI.

I will only be using my Viking II for CW at this time now.
BTW, Terry does have a number of videos on the Viking II re. rigs he has worked on so they are likely a good idea to see.?

Brian VE3HI