Offered for sale are the 3 tubes as titled and pictured. These particular 3 tubes tests strong and are closely balanced / matched. The tubes’ test results are displayed in the photos (New 5751 Spec 100% = 1,200 Gm). Note: Even though this tube is often considered interchangeable with the 12AX7, the 5751 does have a bit less gain than a 12AX7, so the test results displayed are the actual Amplitrex specs for the 5751. Also, these tubes are labeled Westinghouse, and there are no other EIA codes or numbers on them, but based on their construction style. And by comparison of hundreds (if not thousands) of other tubes over the years, they appear to be of Raytheon make / origin. So far, these boxes are still just a concept and in the prototype stage (3D Printed). Any and constructive feedback on the idea is welcomed and appreciated. Eventually I plan to offer these boxes for sale by. Themselves, but not quite yet. See the photos for physical / cosmetic condition. Notes Regarding Tube Tests. All tubes are tested on an Amplitrex AT-1000 tester in the automatic Fixed Bias Mode (for the most conservative results). Test Results are for a general reference only, and are not a guarantee of performance, nor a guarantee of how they will test on your tester. No real world (audio) performance measurements are taken.
Vintage Bogen CHA-33 33-Watt PA Tube Amplifier, Fully Tested, New Electrolytic Capacitors, New Tubes. This is professional equipment. Able to deliver continuous 33W; specially suitable for public announcements, music, etc. Allows to mix 2 microphones and 1 auxiliary source. Unit in extremely good shape and fully tested with. New Electrolytic Capacitors, New Tubes. Tubes: 2x 6L6, 2x 5Y3, 2x 12AX7, 1x 5AV6. Has a couple of small scratches as expected for a vintage unit.
It’s a collection of vacuum tubes. They came from a closed music store. I believe that they’re for guitar amp and organ repair. 12ax7, 5r4gy, 5y3, 6sn7, 6cm7, and a few others. Please see photos for what exactly is included. Are they all new? I do not know. Most seem like it, but some of the box lids are torn off. Some of the stuff in the store had been in the back for like 50 years unused and still boxed.
This Fisher 500-C (serial number 64267U) is in really nice cosmetic condition. The front panel looks terrific with very little cosmetic wear. We cleaned the controls with electrical contact cleaner, but that’s about all the work we’ve done. The tubes are all original and branded for Fisher, including all of the Telefunken smooth plate 12AX7 tubes! It’s playing great and has been tested with the auxiliary and phono inputs. No issues were found! Please keep in mind that the tubes are untested and I cannot guarantee their condition. Also, a cabinet and plastic feet are not included. The bottom line is this… You’ll receive your item on time and in perfect condition regardless of how big, heavy, or delicate your item may be! WHAT’S INCLUDED IN THE SALE: You will only receive what is shown in the photographs. If you do not see it in the photos, it is likely not included in the sale. That includes manuals, packaging, power cords, etc. However, please note that it is your responsibility to ensure we receive the item in good condition. ABOUT US: Our company, Ham & HiFi, is located in Sparks, NV. Everyone in the shop is a ham operator and some have been licensed for more than 50 years.
Welcome to our listing and thanks for visiting. After viewing this item, please check our other listings. Here are three type 2A3 radio or electronics tubes. Please view the photographs as we are not experts in tubes. There are three tubes; each one is a type 2A3. One is inside a box. The box and the tube are marked “Sylvania”. The tube is marked “2A3″ on the glass. Each of the other two tubes are marked “RCA”, and marked “2A3″ on the glass. These two tubes do not have boxes. We used a Hickok model 1575 tube tester and we tested the tubes. The Sylvania tube and one of the Rca tubes tested very good. The other Rca tube tested good. Even though the Sylvania tube is in its original box, we are not certain it is an unused tube. We hope that the photos will help those who are interested. We will do our best to answer any questions. Have a nice day. We hope that we have described our items to complete satisfaction. We are not on-line everyday though, so please be patient for the reply. This is to cover costs of boxes and packing material. We do not make any profit from this.
All our tubes have been tested for. GAS SHORTS TRANSCONDUCTANCE & EMISSIONS. These tubes have been tested – and are considered NOS ; they meet or exceed the published data set for GM. NOS tubes fall within the Gm characteristic range of an average tube, as published in the RCA RECEIVING TUBE MANUAL, which states Individual tubes, like any manufactured product, may have characteristics that range above or below the values given. Test Results are ALWAYS available upon request (if not photographed). Send me a message! I might have what you need! Tubes will be packaged in white boxes – if the original boxes are not photographed in the listing or stated as “with original box” they are not included. 90 % of our tubes are Tv7 tested, our tv7 is Calibrated and our go to tester. The tv7 tester has been around a long time and is a trusted tester for military, who had high standards for reliable tubes that would not fail in critical conditions. Military standards were tubes needed to meet 60/65% which they established as (minimum value). There isn’t a “specific” indicator or result or data set anywhere that universally designates a vacuum tube as “new old stock” when using a tester nor for what test result is given. The best way is to calculate the GM – and check the data sheet for each tube – a “nos”tube should typically measure between the average and maximum micromhos(GM). A common misconception of tube testing is that every unused tube, new or vintage, should test at 100% of the meter scale of the tester. A tube was considered acceptable/new/ passed standards if it tested between the specified minimum and maximum on a tube data sheet or the minimum value specified on the tester (tv7 is minimum is 65%). Tubes do not give the same reading across testsrs – even the same model tester will give a different reading sometimes. If you don’t like the sound of a tube, so long as it is still in the same condition as arrived message me. I DO NOT OFFER A TUBE ROLLING SERVICE, vintage audio tubes typically require a burn in period, that’s where the tube sounds the best. Please see my notes on noise tests below. We have a few different testers available to ensure the quality of the tube (as some tubes can not be tested on the tv7). Tv7 testing is tedious and I spend hours testing tubes and double testing tubes – if you notice a mistake(like a picture doesn’t match the title) please be gracious and let me know. UNLESS PHOTOGRAPHED WITH THE ORIGINAL BOX- tube will come in repackaged white boxes- 50-90 year old cardboard packaging doesn’t hold together well, not in my hands anyways. We have over the last 20 years amassed a huge collection of vintage amps/ parts / tubes and have decided to downsize that collection. Every tube has been marked for tracking and security purposes – these marks wipe off easily and without the mark no return will be accepted. Sound quality is tremendously SUBJECTIVE. Tube tester NOISE TEST. This is a very marginal test, only for special checking. This test needs sound amplification; hearing / listening to noise with headphones would indicate a real disaster inside a tube (THE shorts test WOULD already BE evidence OF THIS). There is nothing wrong with performing that noise test however. That test is not going to tell you whether the tube will be silent in your SET (single ended triode) amp or in anything else. Ultimately, the best way of testing a tube for microphonics is in an actual chassis or amplifier similar to one in which it is intended to be used. Since amps have a wide variety of circuit designs and tube placement, this test is most effective in YOUR AMP or one that is almost identical. Hence, most people advertising tubes as tested for Noise or Microphonics are probably NOT testing them in any meaningful way FOR YOU OR YOUR AMP. “Noise” and “Microphonics” are often buzzwords for other issues. There is a small percentage of tubes that have a problem with noise but far less than most people think. In properly designed circuits objectionable “tube noise” is seldom found. In other words, it is a rare tube that will be noisy when used in most circuits. Always check the data sheet of the tube you plan to use. PLEASE message me BEFORE you open a return. PLEASE NOTE: Tube silkscreen (lettering on the tubes) is VERY fragile. It can be wiped off and destroyed VERY easily.
This vintage amp is an estate sale find and he put notes on most of his stuff. This amp says it’s good but I have not tested it myself. It does power on. No tubes are included.
The product is a lot of 130 vintage vacuum tubes from brands like GE, Sylvania, and RCA. These tubes are intended for use in radios and amplifiers, and they were manufactured in the USA. This wholesale lot of tubes offers a collection of NOS (new old stock) items, ideal for vintage electronics enthusiasts or collectors looking to restore or build equipment from a bygone era. Original boxes, RCA Sylvania, General Electric radio amp, vacuum tubes, wonderful vintage metal carrying case.
VINTAGE LEAK TL/10 POINT ONE MONO AMPLIFIERS MATCHED PAIR 110-120V RARE. These unit are in perfect working condition and look very nice. These sound very nice, modification has been made to use those with 6L6 tubes instead of the X-rare KT-61 tubes… THESE ARE TRUE COLLECTOR PIECES!! I will pack this for war, I know how to make it smooth and secure. This unit will be professionally packaged secure travel, I know how to pack them, no worry. LOOK AND SUPERSIZE EACH PICTURES TO SEE THE CONDITION!! Please ask for rates. ITEM WILL BE PROFESSIONALY PACKED TO SURVIVE ON ANY TRIP!!! I DO AWESOME BLASTPROOF PACKAGING…
