Alltubetesters Articles Which Tube Tester should I ...The Hickok models. Hickok low-cost types like the 533, 533A, 534, 534A, are good testers for most service type work and for testing tubes with Gm values below 15,000 micromho's (Mutual Conductance Values). They have one test signal level, one power transformer, and 3 Gm test ranges as mentioned ab...
The Gm value they provide is supposed to be "average" for that tube type, and with their tester . Every tube tester company winds up stating the printed figure is an average value, and even new tubes will test above & below that figure. Simply, there are tolerances to tube characteristics, and things can be all over the map in various ways. Alltubetesters Kansas City Kansas alltubetestersTop site for "triplett 3423" alltubetesters Title Alltubetesters - Tube Tester repairs, calibration, upgrades, parts and more Description REQUEST TO REMOVE Want to Know - Roger Kennedy - Alltubetesters
Alltubetesters specializes in repairing, calibrating and upgrading tube testers . We also sell parts and occasionally testers , as well as provide helpful information regarding tubes, testers , and testing. Learn more Alltubetesters Articles Which Tube Tester should I Alltubetesters AboutTester is then in queue waiting the 4 hour burn in/aging process. Average one per day, maximum two per day for burn in. A minimum of 4 hour aging/burn-in and operational testing is performed. Final calibration and re-test of all specifications and Alltubetesters Articles Tester Usefulness and AccuracyUsefulness Mutual Conductance Testers Accuracy Closing Summary The best tube tester is the electronic equipment in which the tube is used in. That is to say if you inserted the appropriate meters and other test equipment into the circuit (of the amplifier, or product the tube is used in) around the tube you want to evaluate, this would be the best tube tester and provide the most accurate and useful information on the tubes condition and performance in the product it is used in. This is just a fact! It is also not practical for anyone, exc See more on alltubetesters Which is tube tester should I buy or use?Which is tube tester should I buy or use?All tube testers are test equipment and will require maintenance and calibration from time to time. If this is not done then accuracy and trust in the test results is useless. Testers are not like radios where you buy them take them home and use then till they stop working.Alltubetesters Articles Which Tube Tester should I Alltubetesters Articles Which Tube Tester should I
The Heath capital letters and the Eico numbers run consecutively in order, except that Heathkit eliminated the letter "I" (H=8, J=9). Please PM or email if interested. Your IT-21 can also use the available Heath TC, Eico 625, NRI 66 thru 69, Knight KG600's, & Triplett 3413 data charts. These testers have only ten toggles, so their cap (flying Alltubetesters Articles Which Tube Tester should I Antique Radio Forums View topic - Hickok Tube Tester Alltubetesters Articles Which Tube Tester should I Post subject Hickok Tube Tester /Calibration/Repair. Posted Sep Thu 16, 5:38 am . New Member Joined Sep Thu 16, 5:17 am Posts 2 Alltubetesters Articles Which Tube Tester should I Antique Radio Forums View topic - Joel Hatch's Alltubetesters Articles Which Tube Tester should I After a series of back-and-forth issues with the tester , I mailed the Joel Hatch standards to him. With his permission, here are his comments on them, as well as using them in calibration of my Hickok 539B tube tester :<P>Hello Steve,<BR> <BR>I read Charlie's question. <BR> <BR>Many people often get confused about calibration issues.
Gives a great overview of the types of testers , their uses, limitations, potential pitfalls, etc. Key thing to keep in mind is that commercial tube testers were designed to aid the troubleshooting and servicing of consumer tube equipment, not for doing laboratory measurements or for matching tubes with 1% accuracy. Antique Radio Forums View topic - Recommended Tube I own several tube testers . I have never "calibrated" a tube tester nor found it a necessary or even sane thing to do, nor done more in repairs than change a couple of dead paper capacitors and a few out-of-tolerance resistors. I have a simple method of checking the accuracy of tube testers . Back in the 1950s and early '60s, military tube specs were incredibly high, so most of Antique Radio Forums View topic - TV-7D/U tube tester Alltubetesters Articles Which Tube Tester should I One major rea is that most of the tester is already in calibration with itself due to all of the supplies in it being derived from the same precision power transformer. This was a large part of the genius of Hickok's design and where it trumps many other tester types and makes it 100% independent of a calibration tube .
I use tube testers a lot these days testing tubes for my radio restorations as well as selling tubes on ebay. I have a B&K 667 Emissions tester and test all tubes before selling or installing them. Lately I've had a few issues with Mutual Conductance (MC) tube tester owners buying my tubes and telling me they are weak. Antique Radio Repair & Restoration - RF CafeAlltubetesters alltubetesters 310-323-3281 Torrance, CA Vintage Radio, TV, and Electronic Repair. I specialize in Tube Tester Repair, Calibration, Upgrades, and refurbishing. I also provide technical assistance by email or phone in helping you repair your tube testers . 35 years experience in servicing and calibrating all makes and Alltubetesters Articles Which Tube Tester should I Calibrating an emission tester - diyAudioIMO Emission testers are all but useless for tube testing and grading. Do not waste your time testing lots of tubes in this tester . Instead look on for a tester that measures the tube 's transconductance - one of the true measures of tube merit. Appropriate testers will indicate that they are mutual conductance or transconductance testers .
So a "check tube " is only really good for tube testers that present exactly the same combination of operating conditions as the tube was measured for. Bogey tubes, or those which have specs that are exactly in the median of the range, are sometimes used Can a broken all tube tester be replaced?Can a broken all tube tester be replaced?To allow for more accurate test results, reliability, and for providing improved features to allow the user to perform additional tests not available on his model at the time. Several parts are available for sale to replace bad or broken parts as well as improving the general quality of your tester.Alltubetesters - Tube Tester repairs, calibration Alltubetesters Articles Which Tube Tester should I DIY tube tester - Music Electronics ForumDIY tube tester . 09-21-2010, 07:33 AM. I've read about tube testers being overpriced and unnecessary. I still would like to know the life of a tube because sometimes customers wanna know how old and worn their tubes are if they bought an amp used.
About us. Whats Best Forum is THE forum for high end audio, product reviews, advice and sharing experiences on the best of everything else. This is THE place where audiophiles and audio companies discuss vintage, contemporary and new audio products, music servers, music streamers, computer audio, digital-to-analog converters, turntables, phono Hickock 600 Tube Tester QRZ ForumsThe Hickok 600 model is different from the 600A. Transformers are an issue with some tube testers , as well as 50+ years age / degradation. Roger Kennedy of Torrence, CA is one of the few Repair Technicians for Tube Testers . He also performs technology upgrades, depending upon the model. Hickok 533a Manual File Type533A Tube Tester . Works well. Comes with plate cap adapter, CRT adapter, and instruction card. The inside of this tester is very clean; outside has a bit of wear but everything is structurally sound. Tube data sheet is difficult to roll sometimes. Will be packaged very well. Tube Testers - Hickok 533A Tube Page 21/29
diyAudio Member. Join Date May . Hickok 539A meter replacement. Hello all, I have a Hickok 539A tube tester with a busted transconductance meter. Exact replacements seem to be very difficult to find, but Im thinking of replacing the meter with one from another Hickok tester , if I can find one, and swap in the scale from the original meter. Hickok 539B Tube Tester ?? Page 2 Audiokarma Home Alltubetesters Articles Which Tube Tester should I Replacement meter is available from Alltubetesters (Roger Kennedy). Old meters can be rebuilt but not if the glass is broken. I purchased one last year and my 539B is Hickok 580a tube tester, could use some advice. HiFi HavenI know next to nothing about tube testers and yet I now own one (as of a week ago). The problem is I'm beginning to suspect my definition of "working condition" and that of the guy I bought it from might be a little different. Where I run into trouble is whenever I test a tube , even a nearly new tube , the needle never moves past mid-scale.
However, I remember reading that emission testers could ruin a tube (I think???). If that is true, should I be skipping the second step? 3) Should I let the tube warm up for a couple of minutes after I insert the tube in the tester or can I test "right away." I assume the answer is "let it heat up." I guess that is all for now. Thanks! Massdrop Cavalli Tube Hybrid amp technical measurements Alltubetesters Articles Which Tube Tester should I @Junki, in case you aren't aware, @atomicbob has had problems in the past where other people have used his measurements to try and make arguments that aren't actually supported by his measurements. These people didn't take the time to try and understand what the measurements did and did not represent, how the measurements were done, and what Search of Tube DIY AsylumFound 200 records in Search of Tube DIY Asylum. 1 Re need replacement meter for I-177b tube tester . (10.53) Posted by Perseo on 2003-02-06, 14:40:20 (188.8.131.52) I am modifying an emissions type tube tester (Accurate 257) to make it into a Steve Bench RAT type tester . Taking a while but its fun. My tester was not working, and I did not know Alltubetesters Articles Which Tube Tester should I
12 Re Review The ulta low cost Russian 6n14n (6.97) Posted by Jimmy on 2004-04-09, 06:42:00 (184.108.40.206) This is not plate current, just a reading on a tube tester (not lab equipment either). The tester gives only a reference point for simply a compari from one tube to another. Search of Tubes AsylumFound 94 records in Search of Tubes Asylum.. 1 6528 Settings for Hickok 752A (18.33) Posted by baileyler on 2009-07-27, 12:31:19 (220.127.116.11) I picked up a tube group that had 10 of these in it, but I can't find a setting to test on my Hickok 752A. I have settings for my Eico 667, but I would rather rely on the 752A. Search of Tubes AsylumFound total of 200 records, Query tester in Tubes Asylum, Time 0 sec. Searches are limited to a maximum of 200 records. Your query returned too many records. Try limiting your search by using the Advanced Search Options below to select an author, a date range, a single forum or more specific search terms. New Search.
Alltubetesters - Tube Tester repairs, calibration, upgrades, parts and more Hickok 600 600A 6000 6000A 533 533A Tester Calibration Service « Previous Thread Next Thread Thread Tools Show Printable Version. Email this Page Alltubetesters Articles Which Tube Tester should I Tube Tester Service Upgrades - Alltubetesters - Tube Alltubetesters Articles Which Tube Tester should I This is a 6L6 reference tube that is burned in and then tested to laboratory standards. The tube comes with a manual containing detailed data charts for use in checking, or calibrating most any tube tester . All data for accurately testing Hickok testers are provided. Data for most other makes and models are also in the manual. Tube checker recommendation Alltubetesters Articles Which Tube Tester should I Again Audiokarma Home Alltubetesters Articles Which Tube Tester should I If you are a tube collector or reseller, then you should probably get a tester that other tube buyers and collectors trust and understand, and then test a million tubes to build a point of reference. The best I can get out of my Hickok 800 is a general idea if someone was lying when they say a tube I bought "tests strong" I can somewhat confirm Alltubetesters Articles Which Tube Tester should I
Lot's of good information on tube testers can be found here Alltubetesters - Tube Tester repairs, calibration, upgrades, parts and more . Share Jan 27, 2008 at 5:37 AM Post #3 of 17 n_maher Resistorous Conflagorous. Joined Nov 20, 2004 Posts 8,405 Likes 31. YGPM . Tube testers QRZ ForumsWA5VGO Ham Member QRZ Page. A few years ago our vintage radio club ran a test . Everyone was invited to bring their tube tester and we would all test the same used tubes that were in various conditions. People showed up with everything from TV-7s to inexpensive and very basic emission testers . Most of us were amazed with the results. Tubes for EAR 834p AVS ForumI have an EAR 834p phone preamp (with the ""Thorsten modification", if that matters) - I am beginning to experience some distortion which I'm thinking may be associated with a tube beginning to fail. There are three in the unit, all of them 12AX7 (ECC83). I admit knowing very little about the Alltubetesters Articles Which Tube Tester should I
The Emission testers one should seek today will test for shorts, leakage and gas, and of course emission. The the sensitivity and reliability of these tests vary by the make and model of tester . Some people use an emission tester to "pretest" a tube before they plug it in to their much more expensive Gm tester . What's a good tube tester? MarshallForumThat's because most tube testers only put about 250V on the plates of power tubes. Today, there are two modern testers , the Maxi-Matcher and the Amplitrex-AT1000. Both of these are several thousand dollars each. I would recommend that you get a B and K tester in the 600 or 700 series. Some are full sized and some are very compact. Which Hickok tube tester should I buy? - 2-Channel Home Alltubetesters Articles Which Tube Tester should I The models I am considering, in lowest to highest price order are least expensive ($300 or so) Hickok 600 & 600a. Hickok 800, 800a & 800k. Hickok 6000, 6000a. Hickok 533a. Hickok 539a, b or c. most expensive (into the thousands of $'s) I will be using the tester on my 4 tube tuners and 2 tube amps for now.
I've also noticed that on the life of a tube that testing as "new" really doesnt mean a tube has a long life left. It seems to me in relation to the tubes that Ive bought new, the tube will continue to test new for about 80% or so of its life (keeping in mind the +/- 7% - 9% deviation of accuracy on my upgraded tester ). Which Hickok tube tester should I buy? - Page 3 - 2 Alltubetesters Articles Which Tube Tester should I 3. Share. Posted August 17, 2016. On 1/31/2014 at 4:49 PM, mustang guy said There is a document I just read which shows results of various testers based on a 12ax7 tube . It seemed that the 600a was the most consistent performer across the many 600a units tested, and accuracy to the lab tester results (RCA WT100A). Which is Hickok tube tester should I buy?Which is Hickok tube tester should I buy?The Hickok 539b (just restored a few months before I bought it) was the first to come available in the price ranges I had set. Sad story on why I got it as a brother of a friend fell ill with a stroke and was selling everything as he no longer could use anything and medical issues became more important.Which Hickok tube tester should I buy? - 2-Channel Home Alltubetesters Articles Which Tube Tester should I
Any of my search term words; All of my search term words; Find results in Alltubetesters Articles Which Tube Tester should I Content titles and body; Content titles only tube tester Vacuum Tube Testers For SaleThe transconductance testers are usually the tester of choice when you need to match power output tubes, or need an extremely high degree of accuracy by their DA 14 PA 27 MOZ Rank 58 Alltubetesters Articles Which Tube Tester should I Alltubetesters Articles Which Tube Tester should I Look at the way I did, YOUR tube types, not 65 sockets you will never use. hickok is a great test unit. $300 to $450 tops, Ebay . Here is a list of tubes I currently have in my equipment. Is there a quick way to see what the lowest common denominator tester is based on t Alltubetesters Articles Which Tube Tester should I While I am not answering your question, I non the less wonder why buy a tester if you can get them tested by someone who already owns one. Th Alltubetesters Articles Which Tube Tester should I I live in Parkersburg, WV. There is only 1 per I know who owns one, and it hasn't been calibrated that he knows of. He is the ONLY electro Alltubetesters Articles Which Tube Tester should I I always ask the seller to supply the list, then have a beer and compare. start with the cheap one, work your way up till you find one Alltubetesters Articles Which Tube Tester should I One of my tuners has a number of questionable tubes. Also, I have a couple of EL37's which I think might test well. If so, they could be worth $150 Alltubetesters Articles Which Tube Tester should I I use a Hickok 539b that was fully restored by Roger Kennedy as my main tester. The more I got sucked into this vortex of looking for u Alltubetesters Articles Which Tube Tester should I There is a document I just read which shows results of various testers based on a 12ax7 tube. It seemed that the 600a was the most consistent Alltubetesters Articles Which Tube Tester should I It wasn't taken that way. Actually, Chris Haedt was a well-respected tube tester repaiman, but I believe that he passed away early 2005 Alltubetesters Articles Which Tube Tester should I The cost of the Amplitrex is high at $2,675, indeed. However, it is new, warranted, accurate by modern standards, and interfaces via US Alltubetesters Articles Which Tube Tester should I Tube tester recommendations Audiogon Discussion ForumCan the old tube tester models like B&K or Hickok test the 300B, 211, or 845? I have an amp and pre-amp that use 6SN7, 845, 211, and 300B, so I would like to know if the old models can test these tubes. I'm thinking of the Amplitrex but it's expensive. For the 845, 300B, and 211, how do we know if the tubes go bad wihout the tube tester ? Thanks Alltubetesters Articles Which Tube Tester should I
The Hickok models. Hickok low-cost types like the 533, 533A, 534, 534A, are good testers for most service type work and for testing tubes with Gm values below 15,000 micromho's (Mutual Conductance Values). They have one test signal level, one power transformer, and 3 Gm test ranges as mentioned above.Got me a Hickok 6000A tube tester.Oct 20, 2012Sherwood S-5000 integrated tube amplifier.Apr 09, 2010Need Heathkit TC-2 tube tester chart Alltubetesters Articles Which Tube Tester should I Jul 06, 2006See more results Accurate Calibration Of The Hickok 539B And Hickok 539C Alltubetesters Articles Which Tube Tester should I For tube types which dont have grids or control structures, like diodes, this is all that can be tested for, and emissions only types of tube testers usually just tie the grids to the plate during testing and only test the tube as if it were a simple diode (so really, these testers are testing just the filament and/or cathode the Alltubetesters Articles Which Tube Tester should I I have a few of the testers listed. The ones you've mentioned will test all your tubes but if you ever get into older tubes (4 pin triodes for exam Alltubetesters Articles Which Tube Tester should I I've also noticed that on the life of a tube that testing as "new" really doesnt mean a tube has a long life left. It seems to me in relatio Alltubetesters Articles Which Tube Tester should I In reading the above I have drawn a possible new conclusion. If I want to avoid having a collection of testers in the future if I become serious ab Alltubetesters Articles Which Tube Tester should I I dont believe that the Triplett 3444A is a laboratory model and will have precision issues similar as other service testers (although the p Alltubetesters Articles Which Tube Tester should I I just bought my new tester this morning, Dam Ebay, now iv gone back and polked around, bidding on a Yaesu ham rig, and here the more I try to get Alltubetesters Articles Which Tube Tester should I Why not find some sort of a vacuum tube curve tracer? Look at the difficult time this thread has had getting people to talk about pros, cons, & experience with basic tube testing equipment. H Alltubetesters Articles Which Tube Tester should I Now you have me wondering as well. Thanks for posting that. Looks for about $500 or so (~ $300 USD for the parts kit + $200 for case, computer power supply, other parts, etc.) you could have a failry p Alltubetesters Articles Which Tube Tester should I The uTracer kits are approximately $275 plus shipping from Netherlands. You would still need to source a case, power supply, sockets and wires, etc Alltubetesters Articles Which Tube Tester should I Tube tester recommendations? Telecaster Guitar ForumThe small emissions testers should be used with care. The emissions test , which can give clues as to the life and usefulness of a tube , can also be detrimental to the health of the tube . The tube should not be kept in the emissions test mode for any considerable length of time. I also have a larger Hickok.
In case you don't know, a tube tester should have a manual or chart with it that lists various tube types, which socket on the tester to use for which tube , settings for that tube . While that tester ain't the greatest, it is better than none, and if you are going to get off into old tube receivers, may come in handy.Parts Tester Sales Explore furtherA recommended list of Hickok tube testers tube wizardMaximatcher Audio Vacuum Tube Tester Store and SupportmaximatcherDigital Vacuum Tube Tester, Duovac 1 elecifyelecify tube tester amazonAmplitrexamplitrexRecommended to you based on what's popular Alltubetesters ArticlesI have written some articles and am providing additional information to share about tubes, testing, and tube testers . Which Tube Tester should I get? Testing tubes accurately on a service tester . Why you don't want to use a simple diode pack to replace a 5Y3 or 83 rectifier. Tube Getter Operation (PDF)Should I buy KPT 535 T for LCR?Jun 21, 2017Which subwoofer should I buy?Dec 29, 2011Should I Buy a Stromberg-Carl Tube Amp?Sep 08, 2008Bought a pair NOS RCA redbase 5692 6SN7 tubes, need some advice on tube Apr 07, 2003See more results Tube tester recommendation! Audiogon Discussion ForumI just asked Ralph Karsten the same question. He also recommended Hickok testers , but said they would run $800-2K or so. BTW- he offers tube testing for a modest price-which is what I am going to do, as I don't think I am going to need to test that many tubes.
See this important information about everything you should know before sending your tester in. 1. Fill out this Service Request Form and send me an email to let me know you wish to send your tester in. Provide your shipping address and day time phone number. 2. Print out a copy of the form and include it with your tester . 3.
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