Quick Test for Electronic Tubes: A friend was at a yard sale and bought a facsimile antique wall telephone that was really an AM tube radio. The radio did not work. I used a simple way to test the tubes and fixed the problem. If you have an extra set of tubes you know are good in another amp than swapping them out temporarily will answer your question if it is a tube causing the problem or if it is something more sinister. Tubes don’t have a shelf life so they don’t degrade without use, however capacitors do so it is entirely possible the issue is on that level. Welcome to Arizona Tube Supply where we have hard to find vacuum tubes for your audio gear, guitar amp, antique radios and vacuum tube ham radio equipment (boatanchors). Need sweep tubes or driver tubes for your Swan, Drake, Galaxy or Yaesu transceivers? We have them!
Of course, tubes were used for communication purposes during the war years, and the radio ‘field operator’ needed to be able to test his vacuum tubes. These testers were typically limited to a very select few tubes, and used the soldier’s radio battery to bias the tube to be tested. Weston 774 Type 4 Tube Tester Operating Manual, Schematic, and Tube Data (Download - Adobe PDF file) Manual includes operating instructions, schematic, and tube data sheets for the Weston 774 Type 4 Military Tube Tester. 27 pages. Tube data Includes Signal Corps tubes, cross index, commerical tubes, and supplementary tube test data. $5.95
Radio Tubes,Vacuum Tubes We have over a thousand different radio tubes in stock. We also have a large stock of globe tubes and have antique tube radio's for sale. A test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top and closed at the bottom. Test tubes are usually placed in special-purpose racks
Welcome to the new and improved Vacuum Tubes, Inc. website! We have added a shopping cart for easier ordering and an improved search feature. We specialize in new-old-stock tubes and offer high quality tubes, sockets, capacitors, and other parts. Unbeatable prices on thousands of guaranteed vacuum tubes for sale, vintage NOS hi-fi audio tubes, radio tubes, ham and industrial ready to ship. The only NOS valve dealer with a real webstore. We carry everything from NOS RCA 6L6GC black plates to JJ 12AX7s. We carry brands like Western Electric, Mullard, Telefunken, Sovtek, JJ, Electro-Harmonix, Genalex and Tung-Sol. TC Tubes specializes in vintage vacuum tubes and valves for audiophile, guitar, radio, and do-it-yourself amplifier applications. TC Tubes and Audio Repair Repair services include tube and solid state gear, turn table set-up, and tube-testing in Twin Cities Metro Area. Authorized Grado and Ortofon dealer.
The best you can do with a multimeter is a simple go-nogo test. To to this you need the base diagram for the tube in question. There is a link on nostalgia air for that or pick up a tube manual at a swap meet. All restorable Radio, Audio, TV, Communications Equipment, Test Equipment & Otheritems for sale are pictured below and on following pages.Please feel free to just browse through all the photos clicking on anything of interest to view the description. The most recently added items are pictured first.
Tube 80 or Röhre 80 ID2861, Full-Wave Vacuum Rectifier, UX-Base (4 Pins (2 thick, USA 1924, UX) and Power-supply shown. Radio tubes are valves. Audio tubes for any amplifier: from high end home audio to classic guitar amps. If you aren't sure about which valve you need, or what tubes you can substitute, let us help you. More electron tubes can be found in the tube store collection of New Old Stock (NOS) If you are looking for a tube shop carrying the very best tubes for your amplifier, you've come to the right place.
The first electronic amplification of sound was done with Vacuum Tubes. We have pre-amp, power and rectifier vacuum tubes among other types in New Old Stock from the golden era of American & European manufacturing as well as current production tubes from today. Get the best deal for Collectible Radio Parts & Tubes from the largest online selection at eBay.com. Browse our daily deals for even more savings! Free shipping on many items!
First make a simple test fixture like described below: Below is a diagram of a simple device you can make that will enable you to power up your radio without destroying the power transformer or causing damage. You will need to be able to make this simple test jig using a light bulb, lamp socket and AC receptacle. Be aware that tubes do drift, so holding the switch down long enough for the test result to stabilize will help. If the test value continues to fall by 500 to 1000 Gm it is possible the tester has a defect, or the tube is drifting due to a serious emission problem. Perform a life test on the tube per the testers instructions.
A tube tester is an electronic instrument designed to test certain characteristics of vacuum tubes (thermionic valves). Tube testers evolved along with the vacuum tube to satisfy the demands of the time, and their evolution ended with the tube era. The first tube testers were simple units designed for specific tubes to be used in the battlefields of World War I by radio operators, so they ... Sphere's Canadian test equipment site contains an extensive inventory of all kinds of new and used electronic test equipment, service parts, bargains, electronic parts and other items. Very useful for Canadian companies, schools, and experimenters that need access to sophisticated, low cost electronics. Located in West Kelowna, BC.
Vintage Vacuum Tubes to Get Your Antique Device Working Again. If you want to get your vintage oven or microwave working perfectly again, one of the inexpensive vacuum tubes in this collection might be just what you need. Tube UX 201A or Röhre UX201A ID3613, Triode, vacuum, UX-Base (4 Pins (2 thick, USA 1924, UX) and Universal shown. Radio tubes are valves.
Frequently Asked Questions: Here is where you get the answers about buying vacuum tubes, radio tubes, and learn about the terminology we use in this business. We stock and sell more radio and vacuum tubes than any other company in the world. See an answer we missed? Write us here. The tube list at ABC Vacuum Tubes is very extensive, as is our inventory of Vacuum Tubes, Grid Caps, Sockets, Valves and Capacitors. Follow the links on the left to find the tubes, valves, sockets, grid caps, and capacitors for your antique radio, ham radio, hi-fi stereo, or other electronic piece. Thanks Mike! I definitely do test 100s of tubes a year but since they are mostly customer owned tubes, my rates apply to the time it takes to do this. If I were qualifying tubes for sale as your business does, expediting the process would definitely make sense. The crux of my business is repairs and builds.
Welcome to the Vacuum Tubes division of Radio Electric Supply, home of the largest supply of New Old Stock vacuum tubes in the world. We now have a working inventory of over 7,800 different radio tubes, amplifier tubes, and industrial vacuum tubes in stock. Get the best deals on Collectible Radio Parts & Tubes when you shop the largest online selection at eBay.com. Free shipping on many items | Browse your favorite brands ... New Listing 10 Test Good 5814 Premium 12AU7 - Old Vintage Ham Radio Tube Guitar Audio Amp. $20.00. $7.20 shipping. Brinybay - I too would recommend buying a tube tester if you plan to test a lot of vacuum tubes, but if you are just doing a radio or two I am also in Seattle Washington and I would be willing to test your tubes for you if you wanted to bring them over. Send me a PM if you are interested.-Matthew D'Asaro
They all tested good! These 01A tubes were probably pulled form early radios at some point and set aside until a relative found them stashed away in an attic and them put them in a garage sale. The box of 25 old tubes that I had paid $5 for a few years ago is now worth $10 $20 per tube! Fig.1: Assorted Early Radio Vacuum Tubes Boutique électronique vente en ligne de matériel Tubes électroniques. ST QUENTIN RADIO 6 rue de st quentin 75010 PARIS Face au marché couvert St Quentin. Tél 01.40.37.70.74 Fax 01.40.37.70.91
I have to relate my favorite tube testing story. A really classy couple I met at an antique radio convention, two of the nicest people I know, met because the girl was watching her brother work on a TV set. He asked her to go to a Radio Shack and buy a replacement tube if needed. He said they would test the tube for her. TC Tubes specializes in vintage vacuum tubes and valves for audiophile, guitar, radio, and do-it-yourself amplifier applications. TC Tubes and Audio Repair Repair services include tube and solid state gear, turn table set-up, and tube-testing in Twin Cities Metro Area. Powering Your Radio Safely With a Dim-bulb Tester The moment you bring home a "new old" radio or TV, the temptation is to plug it in and try it out. That's always a bad idea. For all you know, the set may have a short circuit in the power cord, failed electrolytic capacitors in the power supply, or other serious problems not obvious to the ...
How a vacuum tube (valve) works. The diode, triode, tetrode and pentode explained. All restorable Radio, Audio, TV, Communications Equipment, Test Equipment & Other items for sale are pictured below and on following pages. Please feel free to just browse through all the photos clicking on anything of interest to view the description. The most recently added items are pictured first. In this edition of Test Tubes and Tantrums, William Hartston tells the story of the row that exploded on a cold January day in 1935 between Eddington and Chandrasekhar. It was over the death of stars.
How to test your tubes with a multimeter. A simple way to ensure there are no shorts or bad heaters in your tubes. ... How to Repair Vintage Tube Radio Filter Capacitor Fix Hum Antique Receivers ... BRENT JESSEE RECORDING TUBE SALES. ... Anyone who has a sizeable investment in vacuum tubes or vacuum tube hi-fi equipment owes it to themselves to have a good tube tester on hand to periodically check the tubes they are using. You can take a more active role in "tube rolling" as you can match your own pairs, and keep tabs on the tubes you are ... Formed in 1994 with former TESLA equipment, Jan Jorgo started JJ manufacturing with just three tube types - EL84, EL34 and ECC83. From these humble beginnings, JJ presently manufacturers close to 30 different tube as well as capacitors and amplifiers in a state-of-the-art facility in the picturesque Western Carpathian mountains of the Slovak Republic.
How to Test Vacuum Tubes. Vacuum tubes are an older technology not often used today, but they still show up in some amplifiers and other devices. For a quick test, inspect the tube for signs of damage and listen to the sound it makes. If... New Products Clearance Items Vacuum Tubes Speakers & Components Amplifier Parts Books & DVDs Cables Capacitors Circuit Design Effect Pedals & Parts Enclosures Footswitch Boxes Gift Certificate Grill Cloth, Tolex & Piping Guitar Accessories Guitar Parts & Pickups Hardware Jacks & Plugs Keyboard Parts Kits Knobs Maintenance Products ... The subject for this month's article is the care and feeding of old tubes. Let's say you've managed to acquire a really great old radio or two, or perhaps you've picked up some old tubes at a swap-meet.
The 10 most viewed videos in January on the BBC Radio 1 YouTube channel. Some big new videos and some classics that you can't get enough of. Subscribe and turn on notifications to not miss out on new videos from your favourite stars of music, film and entertainment. CLICK ON THE BOXES BELOW TO EXPLORE OUR INCREDIBLE STOCK OF NEW OLD STOCK TUBES, VALVES, TUBE TESTERS, AND OTHER GEEK STUFF! These pages are long and loaded with tubes. Use your scroll button to scroll down each page to see every tube listing! To see every tube we stock, click on "Complete Tube Stock List".
New tubes (just like used ones) will vary considerably in their Mutual Conductance (measured in micromhos) or Gm (for short). Test results will vary depending on the type and brand of tube checker. Emission type checkers will only measure emission and this reading is very unreliable and will vary significantly with various tube tester models. When testing rectifiers and diodes there's no such ... The Tube Center is dedicated to providing Ham radio, amateur radio operators, antique radio enthusiasts, audio professionals and hobbyists the ability to choose from an inventory of over 3.5 Million Vacuum Tubes on hand under one roof. Mark Oppat's Old Radio Parts Vintage Radio Parts, Tubes, Dials, and Books Play Things Of Past Radio Parts, Tubes, and Literature Radio Daze Vintage Radio Parts, Dials, and Supplies Renovated Radios Replacement radio knobs, feet, rubber grommets and washers. Steve's Antique Technology Factory Service Manuals, Schematics, and Photofacts.
About Antique Radio Tubes. I made this web site for all of us who like the warm glow . of tubes. My goal is to sell radio tubes as cheap as I . can find them. I plan on selling antique radios too, as . well as miscellaneous radio items. All tubes are NOS or . used but nothing will be sold unless it test 100% or . better. Warranty Vintage Test Equipment . ... meter allowed the customer to see how bad his radio tubes were and he needed to purchase Silvertone tubes for his radio. Jewell 538. This early 30's counter top tester sports an 8" diameter meter for test results. The other meters are used to adjust line voltage and set operating point for the tube under test. Sylvania 5AXP4 Test Picture Tube (1950s) The 5AXP4 picture tube was designed for TV repairs. Small, rugged, and versatile, it can substitute for many larger picture tubes, saving time and aggravation in the workshop. These special test CRTs were sold alone or as part of a kit like the 5AXP4 Tele-Check: