EF Johnson Viking Kilowatt (KW) Matchbox + Coupler (Model 250-30-3 and 250-37) ¨C Collector Quality - $425 plus shipping.
This unmolested, collector quality KW Matchbox is in near perfect condition. Coupler also in mint condition. The Matchbox front panel, top and sides are like new. The rear panel is in excellent condition with some minor scuffing to the aluminum surface where coax cables have been attached. More pictures on request.?
Keyboard Shortcuts
ctrl + shift + ? :
Show all keyboard shortcuts
ctrl + g :
Navigate to a group
ctrl + shift + f :
Find
ctrl + / :
Quick actions
esc to dismiss
Likes
- EFJohnson-Amateur-Radio
- Messages
Search
Re: Ranger solid-state rectifiers
Ashley . . .
On Fri, 31 Jan 2025 00:16:20 +0000 (UTC), "Ashley Hall via groups.io" <Ashley40@...> wrote: What WE do, in our Ranger overhaul/rebuild process is: build a rectifier network into a gutted 6AX5, ( so the result will plug into the OEM LV rectifier socket) AND we add a solid state +300V buss regulator into the system so we don't care that the resulting LV B+ is a few volts higher than OEM.If you care to do so, could you attach a drawing of what you do for both of these changes? I changed the settings for picture attachments to a higher resolution. We don't have a files storage area in this free group since it was formed after some changes were made to the free groups. Or, you can upload the files in this other group we manage, which I formed before those changes happened to new free groups. /g/Vintage-Amateur-Radio-Restoration We DO have file storage there, and it's not a heavily-used group. This comes under vintage radio restoration so it's not out of line with the purpose of our other group. Maybe do both? Donald KX8K ---------------------------------------------------- Some ham radio groups you may be interested in: /g/ICOM /g/Ham-Antennas /g/HamRadioHelp /g/Baofeng /g/CHIRP |
Re: Ranger solid-state rectifiers
Hello ?? What WE do, in our Ranger overhaul/rebuild process is: build a rectifier network into a gutted 6AX5, ( so the result will plug into the OEM LV rectifier socket) AND we add a solid state +300V buss regulator into the system so we don't care that the resulting LV B+ is a few volts higher than OEM. ? That is what WE do. ?? From our perspective, the under-chassis heat in a Ranger from that HV dropping resistor/bleeder/ chassis heater and other dropping resistors deserves to go away in as careful a manner as possible, so adding more heat seems , to us, unnecessary. ( YMMV). Thank You !!! Ashley ?
?
Thank You
Kiss-Electronics
Ms Ashley Hall
183 N 5th PL.
Cornelius, Oregon
97113
?
?
W7DUZ
?
?
On Thursday, January 30, 2025 at 03:46:45 PM PST, Floyd - K8AC via groups.io <floydsense@...> wrote:
Any Ranger owners out there who have replaced the rectifier tubes with silicon diodes?? If so, did you use dropping resistors to get the voltage back in the original range and if so, what resistance values did you use?
?
Please - I just want to know the answer to that and don't need responses as to why that's a terrible idea.? I know what the voltage drop across the tubes should be and know how to size the resistors, but the question is: what did YOU find to be good?? Thanks.
?
73, K8AC
|
Ranger solid-state rectifiers
Any Ranger owners out there who have replaced the rectifier tubes with silicon diodes?? If so, did you use dropping resistors to get the voltage back in the original range and if so, what resistance values did you use?
?
Please - I just want to know the answer to that and don't need responses as to why that's a terrible idea.? I know what the voltage drop across the tubes should be and know how to size the resistors, but the question is: what did YOU find to be good?? Thanks.
?
73, K8AC |
Re: Best Microphone(s) For Use With the Ranger II
On Wed, 29 Jan 2025 23:46:23 +0000 (UTC), "Ashley Hall via groups.io"
<Ashley40@...> wrote: The D-104 is , in our view, a really good choice. The amplified or non-amplified versions both work just fine.I have a couple of these. The amplified version should work with almost all transceivers. The unamplified version would work well for older radios like the Ranger, Collins radios, Hammarlund, etc. I see these at Hamvention every year for $20 and up. Most around $30 to $40. If you get one with a bad element, I believe crystal replacement elements are available. Or, you can gut the enclosure and install an electret element, which can be purchased for less than $5 (some on eBay for much less), or in a kit with instructions for under $30, or a 5-element array kit for less than $45. They look nice, and blend in with older equipment, while still looking good with the newer radios. Donald KX8K ---------------------------------------------------- Some ham radio groups you may be interested in: /g/ICOM /g/Ham-Antennas /g/HamRadioHelp /g/Baofeng /g/CHIRP |
Re: Best Microphone(s) For Use With the Ranger II
Hello ??? The D-104 is , in our view, a really good choice. The amplified or non-amplified versions both work just fine. Thank You ?
?
Thank You
Kiss-Electronics
Ms Ashley Hall
183 N 5th PL.
Cornelius, Oregon
97113
?
?
W7DUZ
?
?
On Wednesday, January 29, 2025 at 03:39:27 PM PST, Michael Smith via groups.io <tw8kcabpilot@...> wrote:
What are the recommended microphones to use with a Ranger II for best audio? Thank you. 73, Michael Smith, N4KZO -- 73, Michael Smith, N4KZO |
Re: Ranger CW operation modification
Great idea, Floyd. Thanks for posting this modification.
toggle quoted message
Show quoted text
73 Bill N4LG At 07:53 PM 1/25/2025, Floyd - K8AC via groups.io wrote:
The following documents a modification I made to my Ranger to improve CW operation. |
Ranger CW operation modification
The following documents a modification I made to my Ranger to improve CW operation.
?
This modification is useful to those who operate CW with their Ranger and DO NOT use an antenna relay controlled by the Ranger. ?With the modification, if you¡¯re using a Johnson or B&W T/R switch instead of an antenna relay, you¡¯ll be able to leave the Ranger in CW mode and zero beat the VFO by just turning the Crystal/VFO switch to ZERO.
?
In stock form, to zero the VFO on a station you¡¯re listening to you have to move two switches. ?First, turn the Operate switch to Standby. That removes the screen voltage from the final tube by grounding the plate of the clamp tube V6. Then you have to move the Crystal/VFO switch to ZERO to key the transmitter. ?The goal is to eliminate one of these switch operations so all we have to do is turn the Crystal/VFO switch (SW2) to ZERO and we zero beat the VFO without any output to the antenna. ?
?
First, locate the yellow wire connected to pin 5 of SW2. ?Clip both ends (note the terminal strip terminal it¡¯s connected to). ?Next, remove the yellow wire from SW2 pin 4 and connect that end to terminal 6 of the terminal strip where the C22 is (this is the terminal you just clipped the wire from). ?The result is that the VFO output is now always connected to the grid of V3.
?
Next, remove the wires attached to SW2 switch positions 1 through 6 (including the jumpers between pins). Clip both ends. ?That removes the ability to use crystal control for the Ranger, but frees up switch contacts needed in the following steps.
?
Next, run a wire from pin 4 of SW2 to ground.
?
Next, run a wire from pin 5 of the clamp tube (V6) to pin 6 of SW2.
?
Now when SW2 is switched to the ZERO position, pin 4 is connected to pin 6, grounding the plate of V6 and cutting off the screen voltage to the final tube. ?The result is the VFO is turned on and the final is turned off. ?
?
73, Floyd - K8AC
|
Re: Question for the group
Donald Hello ?? I really appreciate your time .... Thank You very much Ashley It will get a lot of exposure there. ?
?
Thank You
Kiss-Electronics
Ms Ashley Hall
183 N 5th PL.
Cornelius, Oregon
97113
?
?
W7DUZ
?
?
On Sunday, January 12, 2025 at 07:29:21 AM PST, Donald Hellen <donhellen@...> wrote:
It will get a lot of exposure there. Donald KX8K On Sun, 12 Jan 2025 06:22:27 +0000 (UTC), "Ashley Hall via groups.io" <Ashley40@...> wrote: >After talking with some people I think I will scan each document and upload it to Bama/Edebris..? This will allow the most "bang for the buck", in terms of access... ---------------------------------------------------- Some ham radio groups you may be interested in: /g/ICOM? /g/Ham-Antennas /g/HamRadioHelp? ? /g/Baofeng /g/CHIRP? |
Re: Question for the group
It will get a lot of exposure there.
Donald KX8K On Sun, 12 Jan 2025 06:22:27 +0000 (UTC), "Ashley Hall via groups.io" <Ashley40@...> wrote: After talking with some people I think I will scan each document and upload it to Bama/Edebris.. This will allow the most "bang for the buck", in terms of access... ---------------------------------------------------- Some ham radio groups you may be interested in: /g/ICOM /g/Ham-Antennas /g/HamRadioHelp /g/Baofeng /g/CHIRP |
Re: Question for the group
Don Hello ?? Thank You very very much for your information !! I do appreciate you taking the time After talking with some people I think I will scan each document and upload it to Bama/Edebris.. ? This will allow the most "bang for the buck", in terms of access... Thank You !! Ashley On Fri, 10 Jan 2025 20:58:35 +0000 (UTC), "Ashley Hall via groups.io" ?
?
Thank You
Kiss-Electronics
Ms Ashley Hall
183 N 5th PL.
Cornelius, Oregon
97113
?
?
W7DUZ
?
?
On Saturday, January 11, 2025 at 05:46:29 PM PST, Donald Hellen <donhellen@...> wrote:
Ashley . . . On Fri, 10 Jan 2025 20:58:35 +0000 (UTC), "Ashley Hall via groups.io" <Ashley40@...> wrote: >? Question: We would like to make copies available to people who are looking for this sort of manual, Is there a IO group that specializes in these 40's and 50's military test equipment things ? > We would copy the manuals and make them available for copy cost and media mail to the US Lower 48. I set up the following group in 2022, before basic groups lost file and picture storage: /g/Vintage-Amateur-Radio-Restoration I don't remember if you need to belong to only read messages, but here's the message list: /g/Vintage-Amateur-Radio-Restoration/messages I checked with a browser that isn't logged into GIO and can view messages. Anyway, the group never really reached critical mass, but it has file storage. It's possible, if you wanted to do this, that the group could store those scanned documents and avoid the need for postage and printing. Of course, for those without printers who require a print copy, that could always be an option. Or, they could take the file to a Kinkos or other print place and have it printed locally. You would be welcome to be a co-owner if you wished. There's one thing to know, though, and that is if the group doesn't become active within a few years, I'd like to re-purpose the group for another amateur radio subject. But I do have other basic groups with the full set of functions before changes were made to basic groups that I would use before this group. I think it will become useful within a couple more years, as has this EF Johnson group that I had my doubts about. The basic group can also have 3 subgroups, if I remember correctly. However, no one would likely find a subgroup unless they were a member of the main group. But the subgroups are also available for file storage if needed. Donald KX8K ---------------------------------------------------- Some ham radio groups you may be interested in: /g/ICOM? /g/Ham-Antennas /g/HamRadioHelp? ? /g/Baofeng /g/CHIRP? |
Re: Question for the group
Ashley . . .
On Fri, 10 Jan 2025 20:58:35 +0000 (UTC), "Ashley Hall via groups.io" <Ashley40@...> wrote: Question: We would like to make copies available to people who are looking for this sort of manual, Is there a IO group that specializes in these 40's and 50's military test equipment things ?I set up the following group in 2022, before basic groups lost file and picture storage: /g/Vintage-Amateur-Radio-Restoration I don't remember if you need to belong to only read messages, but here's the message list: /g/Vintage-Amateur-Radio-Restoration/messages I checked with a browser that isn't logged into GIO and can view messages. Anyway, the group never really reached critical mass, but it has file storage. It's possible, if you wanted to do this, that the group could store those scanned documents and avoid the need for postage and printing. Of course, for those without printers who require a print copy, that could always be an option. Or, they could take the file to a Kinkos or other print place and have it printed locally. You would be welcome to be a co-owner if you wished. There's one thing to know, though, and that is if the group doesn't become active within a few years, I'd like to re-purpose the group for another amateur radio subject. But I do have other basic groups with the full set of functions before changes were made to basic groups that I would use before this group. I think it will become useful within a couple more years, as has this EF Johnson group that I had my doubts about. The basic group can also have 3 subgroups, if I remember correctly. However, no one would likely find a subgroup unless they were a member of the main group. But the subgroups are also available for file storage if needed. Donald KX8K ---------------------------------------------------- Some ham radio groups you may be interested in: /g/ICOM /g/Ham-Antennas /g/HamRadioHelp /g/Baofeng /g/CHIRP |
Viking Challenger Kit - Unassembled in Box
I bought this Viking Challenger kit about 5 years ago.? The top flap had been torn off but it looks like the contentsd have never been taken out.? It's packed so tighlty I doubt I could remove everything for a contents display and be able to repack it same way..? I would enjoy going through the assembly but I have a Viking 500 that will keep me busy for quite some time plus I have several home-brew projects that need to get finished.? I paid $475 for it and I'm not trying to make any money.? If there is a serious buyer I would take the risk of videoing my taking the contents out of the box.? Although I am new to this group, I have been an active member of the Collins group and can provide many references.? Local pickup always preferred.
?
Jerry NY2KW?? |
Re: Question for the group
Hello ? We recently came across a collection of Military Manuals for test equipment, earliest date is 1946, latest is the late 50's. About 10 original military manuals in all. Various types: A couple of oscilloscopes, analog meters, etc... All are OEM military manuals in pretty good shape. Will make very fine copies.. ? Question: We would like to make copies available to people who are looking for this sort of manual, Is there a IO group that specializes in these 40's and 50's military test equipment things ? ?We would copy the manuals and make them available for copy cost and media mail to the US Lower 48. Thank You very much Ashley ?
?
Thank You
Kiss-Electronics
Ms Ashley Hall
183 N 5th PL.
Cornelius, Oregon
97113
?
?
W7DUZ
?
?
On Wednesday, January 1, 2025 at 05:30:47 AM PST, Group Notification <[email protected]> wrote:
MONTHLY REMINDER--Our Amateur Radio Groups Below are our amateur radio related groups. Some may be new enough there are only a few members. If one of those interests you, join it and give it some time to grow. It costs nothing and if there¡¯s few members, it won¡¯t be filling up your inbox while you wait for it to grow. ? ? Alinco /g/Alinco-Amateur-Radio Antenna Tuners /g/Antenna-Tuners Anytone /g/Anytone-Amateur-Radio Baofeng /g/Baofeng CHIRP radio programming tool /g/CHIRP EF Johnson /g/EFJohnson-Amateur-Radio Ham radio antennas Ham Radio Help group Icom /g/ICOM Icom 746 /g/Icom-746 Icom 746 Pro /g/Icom-746Pro Kenwood /g/Kenwood-Amateur-Radio MFJ ham equipment /g/MFJ-Amateur-Radio National /g/National-Amateur-Radio RF Amplifiers Yaesu FT-757 /g/FT-757GX Yaesu FT-767GX /g/FT-767GX |
Johnson Viking KW Matchbox Modifications N4LG
Joe,
toggle quoted message
Show quoted text
Here's are some pictures of the KW Matchbox after modifying the Link Coupling and adding feedthrus for 160M Capacitors.. 73 Bill N4LG At 11:27 AM 1/10/2025, Joe WB9SBD via groups.io wrote:
These are awesome Matchboxes! ![]()
e69367.jpg
![]()
e69377.jpg
![]()
Front Panel.jpg
![]()
Rear Panel Connections.jpg
![]()
Custom Shelf for Switch and Capacitor.jpg
![]()
Capacitor Shelf View.jpg
![]()
Link Coil Tap and Switch.jpg
|
Johnson Viking Matchbox Modifications
Joe,
toggle quoted message
Show quoted text
I have modified both my 275W and KW matchboxes. Here's the changes: 1) Remove the T/R relay and wire straight through. 2) Add two ceramic feedthrus to add capacitance to the main tuning cap for 160M reasonance. 3) Disconnect the link coupling coil from ground and the input. Add a four position ceramic switch and tap the link in four places. Add a 350pF variable capacitor in series between ground and the cold end of the link coil. Feed the RF into the matchbox via a So-239 with the center pin going to the link coil tap switch. The changes allow the Matchbox to achieve a near-perfect match (SWR1.1:1) on most any antenna. I use the KW matchbox with a full-wave delta loop fed with 450Z open-wire line matched to a Globe King 500A running about 300W on AM. Works great. I use the smaller matchbox only for Field Day so I placed the link controls on the rear panel. Very easy modification. However, the KW Matchbox was not so easy. I wanted the link switch and cap on the front panel for ease of use. The most difficult part of that modification was creating a shelf in the KW matchbox on the upper right side for the link switch and capacitor, and getting the faceplate holes lined up. But, the job turned out to be a nice looking and functional tuner. Attached are a couple of documents that outline the details. 73 Bill N4LG At 11:27 AM 1/10/2025, Joe WB9SBD via groups.io wrote:
These are awesome Matchboxes! ![]()
c9467d.jpg
![]()
c946ac.jpg
New Life for the Johnson Matchbox.pdf
New Life for the Johnson Matchbox.pdf
Johnson Matchbox Modifications.pdf
Johnson Matchbox Modifications.pdf
|
Re: Johnson Viking Kilowatt (KW) Matchbox + Coupler (Model 250-30-3 and 250-37) ¨C Collector Quality
¿ªÔÆÌåÓýThese are awesome Matchboxes!I wonder if anyone has ever modded one by taking the tapped bandswitch, out, or installed a more tapped one, so the inductor is even more variable, so the matching ranges can be even wider! Instead of just the 5 taps. Joe WB9SBD On 1/10/2025 10:16 AM, jsternmd via
groups.io wrote:
|
Johnson Viking Kilowatt (KW) Matchbox + Coupler (Model 250-30-3 and 250-37) ¨C Collector Quality
EF Johnson Viking Kilowatt (KW) Matchbox + Coupler (Model 250-30-3 and 250-37) ¨C Collector Quality - $425 plus shipping. Last edited:?A moment ago
?
|
Re: Parting out Johnson Valiant 1
Jerry Hello ???? Spoken for but if this deal falls through, you are next in line.. Thank You Ashley
?
?
Thank You
Kiss-Electronics
Ms Ashley Hall
183 N 5th PL.
Cornelius, Oregon
97113
?
?
W7DUZ
?
?
On Thursday, January 9, 2025 at 04:44:20 AM PST, jsternmd via groups.io <josternmd@...> wrote:
I could use the modulation transformer . 73 Jerry NY2KW Best regards, Jerry On Wed, Jan 8, 2025 at 11:21?PM Ashley Hall via <Ashley40=[email protected]> wrote:
|
Re: Parting out Johnson Valiant 1
I could use the modulation transformer . 73 Jerry NY2KW Best regards, Jerry On Wed, Jan 8, 2025 at 11:21?PM Ashley Hall via <Ashley40=[email protected]> wrote:
|
to navigate to use esc to dismiss