开云体育

I have a Valiant I that I'm rebuilding from the ground up. In the original schematic, Johnson used a double fused plug with two 8A fuses. I assume that was because the plug was non-polarized and the double fuse arrangement was used to insure that that the hot side of the power line was fused regardless of how the AC plug was inserted in the socket. I plan to use a 3-wire 16 AWG power cord for my rebuild, so that isn't an issue for me.. I don't know whether the earliest version of the Valiant had the 1.6 amp fuse in the LV transformer primary or not (mine had it). Except for the antenna relay jack, the only things fed by the line cord are the two transformer primaries. Am I to assume that the primary of the HV transformer could potentially draw 6.4 amps? As part of the rebuild project, I plan to fuse each transformer primary independently for safety reasons. What size fuse should I use for the HV transformer primary? Is 6.4 amps reasonable, or is that overkill. The transmitter isn't built yet, so there's no way to get a ballpark value for a HV primary fuse value. I am replacing the old 866 MV tubes with 3B28s. Another concern: Since the Valiant design switches the primary of the HV transformer, I can see the possibility of some significant switching transients when the transmitter is keyed. Should I use a slow-blow fuse for the HV transformer primary? I would appreciate your input on this issue. Thanks! Mike Harmon, WB0LDJ mharmon at att dot net

The group I mentioned where pictures and files can be stored is here: /g/Vintage-Amateur-Radio-Restoration What I wanted to mention is that I opened up the maximum resolution to 2024 x 2024 or something like that, which should be plenty of resolution for pictures. I also made sure members had permissions to upload and make folders. I recommend making a folder that's descriptive of what files you will put inside it to make it easy to find these. If you just upload a bunch of files, eventually they get scattered in with many others, making it difficult to find what you are looking for. No serious harm is done if you don't do this. It's just considerate to try to do this. We can always move a file or rename a folder. When you upload a file, you can check a box to let the group know you've done this. They will get a link in a post to your files. If you then copy that link you will also get and paste it here in this group, then as long as a member here is in both groups, they will be able to go directly to that file and download it. If it seems complicated, just do what you can and let us know about it. We can fix most anything. :-) Donald KX8K ---------------------------------------------------- Some ham radio groups you may be interested in: /g/ICOM /g/Ham-Antennas /g/HamRadioHelp /g/Baofeng /g/CHIRP https://rf-amplifiers.groups.io/g/main

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

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

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 https://ham-antennas.groups.io/g/main Ham Radio Help group https://hamradiohelp.groups.io/g/main 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 https://rf-amplifiers.groups.io/g/main Swan /g/Swan-Amateur-Radio Yaesu FT-757 /g/FT-757GX Yaesu FT-767GX /g/FT-767GX

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

Hello We are parting out a Valiant 1. ** Parts for shipping only** USPS to the lower 48 only *** 1) Panel is 7 or 8 out of 10. Needs cleaning. No scratches.(1) 2) Valiant Case: 8 out of 10, needs cleaning (1) 3) Transformers: Modulation Transformer, (1) LV Power transformer, needs new output leads (2) HV Filter Choke, Needs new output leads (2) HV Transformer, Needs new output leads (2) Misc RF Parts: PA coils ( a couple of those things) Long skinny ceramic standoff PA Choke. Neutralizing variable capacitor Blocking capacitor PA Tuning capacitor Buffer variable capacitor Tube sockets Band switch assembly (1), Complete, Needs cleaning and some TLC VFO Bezel lamp jewels Green (1) Red (1) Plastic Dial (1), Good condition Bezel jewel lamp holders (2) ( No lamps) Tubes: 3B28 (2) We recommend ceramic sockets for these things. OC3 (2) Misc: Big Fat Power Resistor (1) Interstage audio transformer ( used in the clipper circuit (1) Chassis. Needs cleaning, has not been butchered (1) USPS shipping: Ground Advantage for the small stuff ( $12) & ($5) USPS Flat Rate boxes for the big stuff : Various Size Flat Rate Boxes. Thank You Whatever is left over goes in the trash. Thank You 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 https://ham-antennas.groups.io/g/main Ham Radio Help group https://hamradiohelp.groups.io/g/main 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 https://rf-amplifiers.groups.io/g/main Swan /g/Swan-Amateur-Radio Yaesu FT-757 /g/FT-757GX Yaesu FT-767GX /g/FT-767GX

Purchased a Viking Ranger (I) that someone flipped upside down and crushed the Tank Coil. While I have repaired it as best I can, the tuning for 20 and 15 meters is difficult and 10 meter tuning impossible. Anyone have a Ranger I Tank Coil for sale? 73, Mike KW9I

Good day folks. I just obtained a Viking 500 RF deck that over time was separated from its power supply/modulator unit. It is a long shot, I know, but this group is probably my best chance in finding one. Even an incomplete unit will be considered. I guarantee I will bring it back to life. Thank you. Russ Williams KW6T (Johnson operator since 1974) (530) 417-5674

Hello all, I am posting this want ad for my Elmer and employer, Kevin, WA6HUL. Thanks, Lyman Lew KK6LPW WANTED: Radio Repair Technician Radio repair technician, tube era ham equipment and vintage broadcast receivers. Shop in west Torrance in the Los Angeles south bay area. Full time or part time, flexible hours. Ideal for semi-retired or student. Some experience needed, licensed ham preferred. wa6hul@..., 310-658-9289 --

Hello Free for USPS Postage ( Large Flat Rate Box): From a EF Johnson Valiant 1 ( same transformers in the Valiant 2) 1) HV Power Transformer. Tested for Continuity, NOT Hi Pot Tested 2) HV Filter chokes, tested for continuity, NOT HI Pot Tested... Both are 4.5HY. Thank You Ashley Thank You Kiss-Electronics Ms Ashley Hall 183 N 5th PL. Cornelius, Oregon 97113 W7DUZ On Thursday, November 21, 2024 at 09:16:58 PM PST, Ashley Hall via groups.io <ashley40@...> wrote: Hello One of my tekkie guys sent me these notes today, they concern the Valiant I & II Transmitter. He felt I should pass them along. Issue: RF flashover on SW3B. ( rear wafer) Details: The front and rear rotating contacts of SW 3B are fixed to the rotating ceramic "axle" of SW 3B with 6 small hollow rivets and separated by a very very small bit of ceramic. The 3 rivets which fix the front rotating contact ring pass through the rotating ceramic "axle" of the switch and are terminated with swedged-over heads. The swedged-over heads of these 3 rivets are very very very close ( less than 1/64") from the rear riveted-in rotating contact ring. We have found the ceramic of this very small space carbonizes over time from random RF arcing, ( in some cases, all three rivets) resulting in RF jumping between the rear and front rotating contact rings. What WE did was to grind the heads off of all 6 rivets, remove rivets and the front and rear rotating ring assemblies, replace the ceramic "axle of SW3 B, shorten the rivets, re-install the front and rear rotating contact rings, secure the rivets in their holes with thin CA adhesive. ( The wafer of SW 3B should have been a much larger and more robust RF capable switch) ( SW3A&B is the same switch assembly used for the Ranger, Viking and Valiant.) This effectively increases the spacing between the front and rear rotating contact assemblies of switch 3B to a much safer 1/16~1/8". We also discovered some burned fixed contacts on SW3W&B. We replaced these as needed during rebuild. Thank You for allowing me to post this Ashley . Thank You Kiss-Electronics Ms Ashley Hall 183 N 5th PL. Cornelius, Oregon 97113 W7DUZ www.kiss-electronics.com On Saturday, November 9, 2024 at 03:45:01 PM PST, Ashley Hall via groups.io <ashley40@...> wrote: Hello We are looking for information/ specifications for a Johnson Panel Meter, Part # 22.2338. We would like to know which Johnson Transmitter this meter was part of. Thank You Ashley Hall W7DUZ

I used to have a copy of the specs and user guide of the Transcrypt Transpeater III but I no longer have it. We used them in the fire service back in the day. Does anyone have an idea where I might be able to find some information on this particular piece of equipment? I spend hours on archive.org and there is some old archives of the websites but no product. I'm searching for anything relating to it, anywhere from an electronics diagram to the piece of equipment itself.

Hello Free for USPS Postage to the lower 48 (2) Plate Choke, used in both the Valiant 1 & 2 ( Chokes only, no bypass caps or small inductors). Good condition, no burns or damage Continuity tested ok. Thank You Ashley Thank You Kiss-Electronics Ms Ashley Hall 183 N 5th PL. Cornelius, Oregon 97113 W7DUZ www.kiss-electronics.com On Friday, July 28, 2023 at 03:25:54 PM PDT, Ashley Hall via groups.io <ashley40@...> wrote: Applicability: Any Johnson Transmitter using the Johnson Ball Drive Assembly 1) Johnson Ball Drive assembly uses 3/16" ball bearings (3) 2) We have found cases of the balls showing a "flat spot"/galling resulting in a "glitch or hesitation" in the ball drive input shaft rotation 3) This "flat spot"/galling results from over-tightning of the outer tensioning nut which crushes the wavy-washer, resulting in the balls in the assembly being "dragged rather than rotating" in the input shaft concave drive recess. 1) Disassemble ball drive mechanism 2) Clean thoroughly 3) Replace the three balls ( McMaster Carr has these: 3/16" stainless balls) 4) Polish the input shaft concave ball drive recess ( We chuck the ball carrier assembly in a drill motor, polish the concave drive recess with 1000 grit wet or dry) rinse and dry. 5) Carefully re-tension ( bend) wavy washer. If wavy washer is missing, McMaster Carr has a suitable replacement. 6) Re-assembly ball drive assembly, don't be stingy with lubricant ( we use lubriplate) 7) If your Ranger does not use a "floating snubber", and the ball drive uses the front panel as a support structure, tighten the "tensioning nut" only enough so the dial pointer rotation is smooth and does not "skip" . Thank You Kiss-Electronics Ms Ashley Hall 183 N 5th PL. Cornelius, Oregon 97113 W7DUZ www.kiss-electronics.com

Hello Parting out a Valiant 1, parts available in about a week. Free for USPS postage. Transformers will ship Flat Rate, smaller parts ship ground advantage. Free for postage Windings checked for continuity, Hi-Pot testing not done. 1) HV Transformer ( A beast: about 12 pounds) 1) LV Transformer ( Smaller beast, about 6 pounds) 1) Modulation Transformer ( we include a new double-spaced terminal strip). 2) VR Tubes 1) Panel meter ( this meter will be available in about a month) 2) HV Filter choke Other misc parts, have a need ? Email, we probably have the parts you need. No tubes available. ( except the two VR tubes). Thank You Ashley Thank You Kiss-Electronics Ms Ashley Hall 183 N 5th PL. Cornelius, Oregon 97113 W7DUZ www.kiss-electronics.com On Sunday, September 1, 2024 at 05:31:45 AM PDT, 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 https://ham-antennas.groups.io/g/main Ham Radio Help group https://hamradiohelp.groups.io/g/main 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 https://rf-amplifiers.groups.io/g/main Swan /g/Swan-Amateur-Radio Yaesu FT-757 /g/FT-757GX Yaesu FT-767GX /g/FT-767GX

I bought this kit about 10 years ago with the intention of building it but the XYL says it would be sacriligeous to unpack a collectible and restore with new caps, etc. Does anyone haveany interest in making an offer? Jerry NY2KW

Hello One of my tekkie guys asked me to post this information for anyone who might be working on a Johnson Ranger, I or II and find L5 damaged or the coils open: NOTE: Position of adjustable core not noted Inductance of entire coil: 20uh ( approximately) Inductance of lower( closest to mounting fingers): section 6.5uh ( approximately Inductance of upper section: 14uh ( approximately) Wire size: # 29 AWG. No, we did not count the turns. Enough to fill each section should be close enough. Motto: Beat to Shape, File to Fit, Paint to Match ( Thank You Dad for that bit of wisdom). Thank You Thank You Kiss-Electronics Ms Ashley Hall 183 N 5th PL. Cornelius, Oregon 97113 W7DUZ www.kiss-electronics.com On Tuesday, October 15, 2024 at 05:20:39 PM PDT, Donald Hellen <donhellen@...> wrote: Thanks for this tip!!! Donald KX8K