K1jj tuner.

A site dedicated for the AM Radio Amateur and vintage radio. Home of the AM Press/Exchange, The AM Forum (the largest BBS of it's kind),and The AM Classifieds, Photos, Audio, and technical information. Audio and Video chat rooms.Still accumulating parts for the HB antenna tuner. Will be using the K1JJ design (attached). I don't expect to stress it too much, maybe 250 watts carrier at most, and it will ahve already come out of a pi net in the rig of RF deck, if that makes any difference. I plan to run it into dipoles, G5RVs, Windoms etc.Here is my grid tuning for my K1JJ plate modulated 813 rig. C? .01 are 1kv disc caps. L is an airdux coil with a shorting switch that is tapped for each band. 300pf an air variable cap that is mounted on the front panel (small one from RF Parts, I can give you the PN). No neutralization used on 160/80/40. I am unstable on 20M but never go there ... Topic: instructions to build the k1jj tuner (Read 30118 times) 0 Members and 1 Guest are viewing this topic. kc1gtk. Member Offline Posts: 5. Topic: W5DWT Tuner / K1JJ Tuner (Read 1749 times) 0 Members and 1 Guest are viewing this topic. ka4koe. Contributing Member Offline Posts: 1157. It's alive. IT'S ALIVE!!!

Rating Action: Moody's upgrades the ratings of Kazakhstan-based SB Sberbank JSCVollständigen Artikel bei Moodys lesen Indices Commodities Currencies Stocks

How to Make Use of Our Free Online Violin Tuner. Click ‘ Start Tuner ‘. Allow your browser to access your microphone. Play the violin’s A string. Watch the needle on the tuner. If the needle points to the right, your tone is too high. If the needle points to the left, your note is too low. Use the fine tuners to make an adjustment to the ...instructions to build the k1jj tuner << < (8/12) > >> Steve - K4HX: Those are so general statements as to be nearly useless. For example, let's take radiation pattern. This cannot be called a problem unless some specifics are known. ... K1JJ: Quote from: kk6noh on March 09, 2016, 09:57:54 PM 1000 feet of wire and 3 supports actually. However ...

Topic: instructions to build the k1jj tuner (Read 35557 times) 0 Members and 1 Guest are viewing this topic. N7ZDR. Member Offline Posts: 31. Re: instructions to build the k1jj tuner « Reply #25 on: March 07, 2016, 10:58:40 AM ...If you do search on "k1jj link coupled tuner" you will get tons if information. Thanks. One of the photos on your QRZ page is what I was looking for. Nice work. WA4WAX: I showed someone the rough layout of a link coupled tuner built around some BC-610 coils. The miscreant said it looked like a moonshine still. Uggh! K1JJ: Offhand, without a manual, I would say that is an unbalanced output tuner. It may be designed for coax - or an end fed wire fed against ground. ( T-match) Connecting your open wire to one terminal and ground will ruin the delicate antenna balance. If so, maybe there is a way to modify it with a second coil or cap to make it a balanced ... The stock military antenna tuning unit is designed to match the 610 to a random length wire, not to a balanced feed line. To match it to a balanced open wire tuned feeder, a link coupled tuner would be the best bet. The 610 was not designed to work directly into a 50Ω unbalanced coax line. Logged.

For the new project, for 160 grid tuning, I would use more L to get you down there instead of using 580 pF. It will work either way, however, just a sharper tuning / higher Q when using a bigger C. T. Logged. Use an "AM Courtesy Filter" to limit transmit audio bandwidth +-4.5 KHz, +-6.0 KHz or +-8.0 KHz when needed.

That said, most of my modern class C or linear builds now use a reverse pi-network for the input. You can get it to tune and work well from 10-160M easily. Use a variable cap to ground, a physically small roller inductor in series and a smaller variable cap to ground into the grid. The old link input was handy to allow the grid to float using ...

The tubing wound into giant coils is impressive and brings back memories of the old days. However, the construction of the variable capacitors really got us excited. Big air variable caps may be ...Are you looking to extend the life of your clothes washer? Our guide walks you through the best maintenance tips and tricks to prolong the life of this appliance. Expert Advice On ...Here is my grid tuning for my K1JJ plate modulated 813 rig. C? .01 are 1kv disc caps. L is an airdux coil with a shorting switch that is tapped for each band. 300pf an air variable cap that is mounted on the front panel (small one from RF Parts, I can give you the PN). No neutralization used on 160/80/40. I am unstable on 20M but never go there ...But I noticed that K1JJ (see the K7JEB website below), as well as W7XXX in his Electric Radio article (ER # 125), connected the suppressor grids to ground. The 1959 Edition of the Radio Handbook discusses "Zero Bias …Well, after some work, here's the all-new 4-1000A grounded grid linear amp. Just finishing up the wiring, though it needs cable dressing, cleaning up and initial testing. Featured is an electronically regulated screen supply using a pair of 11N90 MOSFETS. Also using zener diodes in the cathode for grid bias.Topic: instructions to build the k1jj tuner (Read 30077 times) 0 Members and 1 Guest are viewing this topic. N7ZDR. Member Offline Posts: 31. Re: instructions to build the k1jj tuner « Reply #25 on: March 07, 2016, 10:58:40 AM ...K1JJ 813x813 Transmitter Schematic (128K) K1JJ Power Supply Schematic (for Xmtr) (148K) RF Deck, Front View (300K) RF Deck, Top View (377K) RF Deck, Bottom View …

Title: Re: K1JJ Tuner Efficiency Post by: Steve - K4HX on February 16, 2019, 03:32:01 PM Generally, the closer to the center of the coil the feed line is tapped, the higher the Q of the parallel tank circuit. K1JJ USA. Login is required for additional detail. Email: Login required to view. Ham Member Lookups: 5105428 September 2020 I want to build a K1JJ style balanced tuner that will match my horizontal loop (initially) to 50 Ohms. I have a choice of 2 vacuum variables for the parallel variable across the tapped coil, some soft annealed 3/8 inch copper tube, a former, some 3/16 copper tube for L2 and a 4 gang 1000pf total wide(ish) spaced broadcast variable. Press the "Turn on" button under the tuner. Your device will ask for permission to record sound from a microphone - allow recording ⏺. So the online tuner will have the opportunity to hear the sounds of your guitar. Play any string - the chromatic guitar tuner will show what note it is, and how accurately it is tuned. The input coil connects to your radio and the big coil will have to be tapped out to match the aerial to the radio system. I had a vacuum variable cap available and that connects across the entire big coil. You can SEARCH for the K1JJ tuner and you will see endless postings. Fred flintstone mop: One last thought.Aug 4, 2010 · But I noticed that K1JJ (see the K7JEB website below), as well as W7XXX in his Electric Radio article (ER # 125), connected the suppressor grids to ground. The 1959 Edition of the Radio Handbook discusses "Zero Bias Tetrode Modulators" (section 30-8) and also shows a pair of 813's in push-pull with the suppressor grids grounded and the control grid and screen grid connected together.

Whats the best way to attach the smaller "input" coil to the main coil? Functionally, I know I could just wind the wire right over the copper coil, (especially since at present I'd only be running a dx-60 into it) but I've got a little bit of "vintage" hardware, and I'm making an attempt to have this thing look as old-buzzardly as possible.

K1JJ air-check running an FT-1000D on 3785 into Dr. Love (8877) loaded to 1500 watts PEP: The audio is speaker to microphone. Bandwidth of the receiver (3.6kc) …My K1JJ tuner is mostly used for feeding a short antenna on 75m. I've put legal limit into that same 70 ft doublet on 160 and the clips hold up fine. I don't know …Download GuitarTuna today to tune, practice, and play the songs you love. Tune your guitar and other instruments with GuitarTuna, the world’s #1 online tuner. Our online guitar tuner comes with over 100 different tunings.Aug 4, 2010 · But I noticed that K1JJ (see the K7JEB website below), as well as W7XXX in his Electric Radio article (ER # 125), connected the suppressor grids to ground. The 1959 Edition of the Radio Handbook discusses "Zero Bias Tetrode Modulators" (section 30-8) and also shows a pair of 813's in push-pull with the suppressor grids grounded and the control grid and screen grid connected together. instructions to build the k1jj tuner << < (5/12) > >> flintstone mop: I hope the OP returns with some good news...It was a couple of days of getting ideas and supplies and actually mounting the tuner on a nice plywood platform... Waiting for the Russian vac variable was a while. Fred kk6noh: Quote from: flintstone mop on March 04, …There was 40 turns of the 1/4 inch copper tubing and the input coil was 6 turns of # 10 wire on a ceramic form. Finding the magic match, using my MFJ analyzer, …The A'PEXi SAFC 2 is an electronic fuel-tuning device used to optimize the air-to-fuel ratio in modified engines. Considered a piggyback tuner, the SAFC 2 connects into the engine ...The tuner is just a single section variable - floating. It is across a 40 turn copper tubing coil. There is a 5 turn 50 ohm link wound inside or outside the big coil that connects to the rig and goes to ground. The feedline taps onto the coil, evenly spaced, and the capacitor clips to the coil, evenly spaced.

I hope you have success in building this tuner. There was a lot of threads about it and different configurations to accommodate a wide range of antenna …

Tom, K1JJ-----Hi All, Many of you are going to be putting up new modified or homebrew 6M Yagis. I wanted to make sure everyone understood the finer details of tuning it for 50 ohms +J0. A homebrew or modifed design needs some extra steps to adjust the swr flat compared to a store bought "pre-fab".

Topic: instructions to build the k1jj tuner (Read 35181 times) 0 Members and 1 Guest are viewing this topic. kk6noh. Member Offline Posts: 12. instructions to build the k1jj tuner « on: February 22, 2016, 10:05:11 PM ...It is important to keep an eye on your debit card balance so you don't try to use the card when you don't have sufficient funds. You can check the balance by making a phone inquiry...Topic: instructions to build the k1jj tuner (Read 35150 times) 0 Members and 1 Guest are viewing this topic. kk6noh. Member Offline Posts: 12. instructions to build the k1jj tuner « on: February 22, 2016, 10:05:11 PM ...That said, most of my modern class C or linear builds now use a reverse pi-network for the input. You can get it to tune and work well from 10-160M easily. Use a variable cap to ground, a physically small roller inductor in series and a smaller variable cap to ground into the grid. The old link input was handy to allow the grid to float using ...The K1JJ tuner that most of us built on AMFONE is NICE. I attached pictures of mine. ... There is a Dentron 3KA tuner, not shown, that is presently doing the honors on my 240 foot dipole fed by 175 feet of OWL to the antenna. Fred. OWL Tuner.jpg (132.48 KB, 1059x794 - viewed 412 times.)Title: Re: K1JJ Tuner Efficiency Post by: Steve - K4HX on February 16, 2019, 03:32:01 PM. Generally, the closer to the center of the coil the feed line is tapped, the higher the Q of the parallel tank circuit. High Q means higher circulating currents and more loss. So, for best efficiency, tap the feedline as far from the center of the coil as ...Oct 20, 2001 · The AM Window: Tech: General: 813 Maul. T he rumor has it that Tom, K1JJ scribbled the original of this schematic out on the kitchen table of Craig, KA1ZEQ one evening. This is the 813 based rig you hear these "bigboys" using from time to time in the Northeast. Before you go trying to build one these, remember there are lethal voltages running ... quote author=K1JJ link=topic=35375.msg272550#msg272550 date=1387138835] We appreciate your FB info, Stu! It looks like the series modulation is the better way to go from a precision tuning perspective. I like to optimize a rig on the bench and be done with it. The screen modulation might be a QSY hassle.

Best guitar tuner app. 7. Fender Tune app. The app detects notes from acoustic guitars and amplified electrics, and offers auto tune, chromatic and manual tune modes, including alternate tuning options and the ability to create custom tunings.The 1960 Mercury had a more subtle attitude than its predecessors. Learn more about the changes made to the 1960 Mercury and what engines were used. Advertisement The 1960 Mercury ...The input coil connects to your radio and the big coil will have to be tapped out to match the aerial to the radio system. I had a vacuum variable cap available and that connects across the entire big coil. You can SEARCH for the K1JJ tuner and you will see endless postings. Fred flintstone mop: One last thought.Instagram:https://instagram. tryst iowaomg adult livegerman candy with caramel center crossword cluebecuncensored onlyfans nude Shipping. Total. ThunderMax products for fuel injected Harley-Davidson® Since 2003 ThunderMax has been the leader in tuners and programmers for EFI HD® Motorcycles. With a wide range of products for your Harley® you are sure to find the right fit for your motorcycle. marcus pickerington cinema hill road north pickerington ohsunset funeral home cayuga indiana Jan 1, 2021 · I admitted to Tom K1JJ, that I bought and returned a Palstar BT1500A. I did not open it, but saw internet pics of the interior. Beautiful, well made tuner. The dual roller inductors were impressive. Expensive as all get out BUT it would not tune the present dipole for 160M. It tried, almost at 2.7mhz, but not 1.880mhz. Posts: 8302. Re: Amp Supply AT-1200 antenna tuner. « Reply #3 on: June 01, 2022, 08:46:09 PM ». if I may suggest a current balun with an SO-239, to connect to the coax output of the tuner. It should have wing nut terminals to hook to your line. Then the balun will push equal currents into the twin lead and your antenna. paper mario the thousand year door ebay The stock military antenna tuning unit is designed to match the 610 to a random length wire, not to a balanced feed line. To match it to a balanced open wire tuned feeder, a link coupled tuner would be the best bet. The 610 was not designed to work directly into a 50Ω unbalanced coax line. Logged. STuner 2.0. S-Tuner Alpha Build. This is very much a work in progress, a lot of features are still being ported over and there may be features that cannot be ported. There are lots of bugs! Link to Old Flash version: HERE that may not work due to Flash going End of Life in 2021. If you select a part (Highlighted Red)