Vintage Tube Amp

TUBE HUNTER VACUUM TUBE GEMS. THESE ARE THE SPECIFICS OF THE TUBE/TUBES/PARTS FOR SALE. THESE ARE THE TUBE/TUBES/PARTS FOR SALE. SILK SCREEN CONDITION %. CURVE TRACER ma: NORMAL = 30ma TUBE #1. 34ma AND 31ma AT 200PV AND 0G. CURVE TRACER ma: NORMAL = 30ma TUBE #2. 31ma AND 33ma AT 200PV AND 0G. TRANCONDUCTANCE: NORMAL = 2200. PERCENTAGE OF BOGEY: TUBE 1. PERCENTAGE OF BOGEY: TUBE 2. BF = SEPT 1966. These are very special RCA 12AU7 twin triodes. This is a nearly perfect example of one pair of the best sounding 12AU7′s tubes ever made. You will not be disappointed in this tube. Some say the side getter contributes to the low microphonics of this tube. Wonderfully balanced airy highs, mid range warmth, and accurate bass……… This tube is an incredible bargain among NOS tubes. Stock up now, this tube is vanishing from the market just like the Telefunken smoothplates! On my tester a B&K 747 tester. Below 55 = BAD. 65 -100 = GOOD. NOTES ON THE BOXES. LISTING WILL GENERALLY HAVE INFORMATION ABOUT ANY BOXES ASSOCIATED WITH THE TUBES FOR SALE. THESE ARE THE OPTIONS. ORIGINAL BOXES IN VARYING CONDITION. THESE BOXES WILL BE THE ORIGINAL BOXES THE TUBES CAME IN AND WILL SHOW AGING IN VARYING DEGREES. THESE TUBES ARE ASSUMED TO BE NEW AND WILL TEST AS NOS. NO BOXES PROVIDED NONE AVAILABLE USUALLY USED AND SHOULD BE ASSUMED TO BE USED UNLESS OTHERWISE STATED. THESE TUBES SHOULD BE ASSUMED TO BE USED UNLESS OTHERWISE STATED. THESE ARE BOXES I HAVE MADE WITH GREAT TIME AND EXPENSE TO PROTECT YOUR VACUUM TUBES AND PROVIDE FOR STORAGE AND EASY IDENTIFICATION. TUBES IN THESE BOXES SHOULD BE ASSUMED TO BE USED UNLESS OTHERWISE STATED. SHOULD BE SELF EXPLANATORY. THIS IS DONE ON A NUMBER OF TESTING DEVICES. B&K 747 TUBE TESTER. MERCURY 1000 DYNAMIC MUTUAL CONDUCTANCE TESTER. NOS = 80% TO 135%. GOOD = 65% TO 80%. OR MARGINAL : 55% TO 65%. TESTING RESULTS SHOW HOW THE TUBE IS PERFORMING NOW. TESTING RESULTS DO NOT SHOW HOW OLD A TUBE IS OR HOW MANY HOURS IT HAS BEEN USED. HOWEVER IF A TUBE TEST NOS YOU CAN BE ASSURED IT WILL LAST A LONG TIME AND IS WORKING VERY WELL. I will never sell a tube that is below standard.. I will work with you in good faith if there are any problems, or if you are unsatisfied in any way. All tubes are tested for shorts, continuity, and emissions. I will bend over backwards to make sure that you are a happy customer. Sound quality is tremendously. PLEASE NOTE: Tube silkscreen (lettering on the tubes) is VERY fragile. It can be wiped off and destroyed VERY easily. DO NOT handle the tubes or hold them from the cylinder. ALWAYS hold them from the ENDS. THIS IS VERY IMPORTANT. TESTING: I test all tubes that I sell in one way or another, or I will state “untested”. I have a B&K 747 tube tester. This is a mutual conductance tester. It give a percentage value of gm for the tube under test and checks for shorts and grid emissions. I also use a Tektronix curve tracer for testing triodes. I give a number of evaluations for tubes. One evaluation is a screen shot of the tube with a high voltage applied to the plate. The Curve tracer steps the triode through 10 gate/grid voltages starting with -10 volts and going to 0 volts. The lines show how the tube conducts throughout that range. At 0 volt the tube is at max conduction and is the top line on the display. It is easy at that point to take where that top line intersects the plate voltage, find the milliamp level and compare it to the datasheet. I give those numbers for you in the “Item condition box”. This can then be compared to other tube sellers using inferior test methods such as Hickok. Amplitrex, and other testers. The Tektronix curve tracer gives values within 3% of the actual value. The very best portable testers only can approach 10% accuracy. Please note: The numbers given for gm are what I see on my tester. I DO NOT guarantee that you will see those numbers on your tester. I only guarantee that these tubes will test good, with no shorts, or gas, on a decent calibrated tester. I don’t guarantee or imply anything else. Vintage tube testers almost always, due to age, have VERY LOW HEATER VOLTAGES!!! Every tester I have ever bought is below 6 volts when selecting 6.3 volts. They average 5.8 volts. The voltage NEEDS to be 6.3 and 12.6. You can calibrate a vintage tube tester all you want. If the heater voltage is not right, you will NEVER get the right gm value. I have customers complain that their tubes are not the same as what I see on my tester. They say they have a calibrated tube tester. I have 40 tube testers. On all of them I have an outside regulated DC power supply that feeds the tube tester the correct heater voltage. I don’t check each and every tube for noise or tone. This is SUBJECTIVE and it is too time consuming. Please wait for us to invoice you for the correct amount. This is an honesty issue. We are honest with everyone to the best of our ability to do so. We want you to trust that what we say is true. There cannot be that trust, if we make false statements knowingly to anyone. And all the Angels sang because the heavenly music was playing and it was turned all the way up. Listing and template services provided by inkFrog. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Tubes & Tube Sockets”. The seller is “mercedesman6572″ and is located in this country: US. This item can be shipped worldwide.

• AUDIOPHILE LOW NOISE: PHONO LOW NOISE PREAMP
• Brand: RCA
• Country/Region of Manufacture: United States
• FENDER GIBSON AMPEX: BRAVO AUDIO HEADPHONE
• GUITAR AMPLIFIER: TUBE AMPLIFIER
• LOW MICROPHONICS TESTED: HAND SCREENED FOR AUDIO
• Model: RCA 12AU7 CLEARTOP
• ORGAN TUBES: BOTTLEHEAD CRACK
• Type: Vacuum Tube
• VINTAGE TUBE: WELL BALANCED VINTAGE

For your AUDIO ELECTRONIC PARTS Consideration is. COLLECTIBLE AMPLIFIER ELECTRONIC TRANSFORMER. BIGGEST WE HAVE EVER SEEN! SALE IS FOR LARGE TRANSFORMER IN PHOTOS > ONLY! OTHER ITEMS FOR SIZE COMPARISON, NOT INCLUDED. SEE ZoOM PHOTOS FOR NUMBERS! INCLUDED: S-35762 VARIABLE CHOICE TRANSFORMER. HAS From 95V, 100V, 105V, 110V, 115V, 120V, To 125V SCREW CONTACT OPTIONS. VERY HEAVY> FEELS LIKE 15-20POUNDS. WHAT LOOKS LIKE LETTERING (804 8) KE 14 ON SIDE. DIY REPAIR / BUILD PART FOR VINTAGE AMPLIFIERS & POWER AMPLIFIERS. UNTESTED> FROM A VERY GOOD SOURCE OF FUNCTIONING ELECTRONICS WORK SHOP KEEPER LOT PARTS FIND! VINTAGE HAM & RADIO / GUITAR AMPLIFIER REPAIR COLLECTIBLES. See photos & description. We hope you can use It… Taking into consideration an Item from the 1940′s is almost 80 Years OLD! Some items are untested or unable to test until applied. SOME OF OUR ITEMS ARE EXTREMELY RARE & VERY COLLECTIBLE-SOME ODDLY UNIQUE. ALL OF OUR PARTS ARE BEST DESCRIBED (IN CONDITION & DESCRIPTION). Hover mouse over smaller thumbnails to change larger picture above them. Once you get the desired small image showing in the larger window above the thumbnails, move your mouse over the larger picture. A box will appear that reads Mouse here to zoom in. Items Are Packed & Handled WELL. You then receive a Tracking #. You need to Contact shipper with Order number. If you feel you item was truly Not as described because of wrong item, or it’s a totally different product, please let us know, by emailing us. Our goal is to provide our customers with Great service. We value your business and hope for future business. Once in a Blue Moon it’s possible to get a listing backwards and such. We Leave Mirrored feedback to All Buyers/Winners. Thank’s for – Checking – IT – Out. TRY COMING BACK FOR FRESH VINTAGE AUDIO AMPLIFIER TUBES & PARTS, RADIO, HAM, TV, TUBES LOTS. NEW & RARE LISTINGS. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Transformers”. The seller is “(((((sparatticfilter)))))” and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, Korea, South, Indonesia, Taiwan, South Africa, Belgium, France, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi Arabia, United Arab Emirates, Qatar, Kuwait, Bahrain, Croatia, Republic of, Malaysia, Antigua and Barbuda, Aruba, Belize, Dominica, Grenada, Saint Kitts-Nevis, Saint Lucia, Montserrat, Turks and Caicos Islands, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, Egypt, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.

• Brand: Unbranded
• Model: 804 8 (S-35762)
• Country/Region of Manufacture: United States

Condition: Used Used and scratched for daily use Maintenance completed, each capacitor check, thermistor replacement, tube pin volume cleaning, bias voltage check The characters on the terminals and operation panel have disappeared considerably. International Buyers – Please Note. Thank you for your understanding. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “toru_jpn” and is located in this country: JP. This item can be shipped worldwide.

• Brand: McIntosh
• Type: Power Amplifier
• Modified Item: Yes
• Model: McIntosh MC240
• Country/Region of Manufacture: United States

For sale is a vintage, cute. Lafayette LA-214 Tube Stereo Amplifier, EL84/6BQ5 Single-Ended, All Vintage Tubes. I tested the amp (using headphones because the speaker posts are kind of rusty and questionable). All tubes lit up OK but I only get music on LEFT channel, with cracking noise sometimes when I adjust the knobs. Sometimes the signal simply got cut off. So, the electric contacts are not very stable. I then swapped the power tubes, but only had loud hum on the right channel. I stopped my testing right there. So, I believe the amp may have all transformers fine, but needs service/repair to get it back to normal. Not sure about the tubes condition. Physical condition is fair, as you can see in the pictures: rust, discoloration, dust, etc. One screw on the top cover is missing. I have other audio equipment, like. Accuphase, Acurus, Adcom, Aragon, Arcam, Audio Research, Audioquest, Ayre, B&K, B&O, Bang Olufson, B&W, Bowers Wilkins, Bryston, California Audio Labs, Cary, Classe, Cambridge, Carver, Conrad Johnson, Creek, Denon, Dynaco, Dynaudio, Goldmund, Infinity, Jadis, JBL, Jolida, JM Lab, Kef, Kimber, Klipsch, Krell, Levinson, Lexicon, Linn, Marantz, Martin Logan, Mccormack, Mcintosh, Meridian, MIT, Musical Fidelity, Music Hall, NAD, Naim, Nakamichi, NHT, Paradigm, Parasound, Pass, Pioneer, Proceed, PS Audio, PSB, Quad, Rega, Revel, Rotel, Rowland, Sonic Frontiers, Sonus Faber, Spendor, Sunfire, Tandberg, Tannoy, Theta, Thiel, Threshold, Totem, Transparent, Vandersteen, Vmps, VPI, VTL, Velodyne. AR, Audio, Audiophile, Amplifier, Amps, Arcam, Acurus, Aragon, Adcom, ADS, Advent, Bose, Boston, Beovox, Bryston, Bedini, B&K, B&0, B&W, Bowers & Wilkins, Celestion, Counterpoint, Canton, Cello, Creek, Cerwin Vega, Dahlquist, Denon, Dcm, Dynaco, Dynaudio, Ess, Spica, Epicure, Ensemble, Electrostatic, Elite, Fisher, Fosgate, Harman kardon, Harbeth, Integra, Infinity, JBL, Jadis, Jolida, Linn, Luxman, KEF, Klipsch, KLH, Krell, Kenwood, Martin Logan, McIntosh, Mirage, Mission, Monitor Audio, Nad, Onkyo, Paradigm, Proac, Sony, Pioneer, Polk-Audio, Preamplifier, Quad, Rogers, Rotel, Rega, Stanton, Speakers, Audio, Stereo, Studio, Vandersteen,, Snell, Spendor, Thorens, Vandersteen, Wharfedale, Yamaha, Speakers, Turntable, M&K, Accuphase, Dali, Wilson Audio, Sonus Faber, Definitive Technology, PSB, NHT, Magnepan, Eminent Technology, Monitor Audio, Vienna Acoustic, Meridian, Behringer, Acoustat, Genesis, Opera, Mirage, Energy, Pinnacle, Musical Fidelity, Sonic Frontiers, Cambridge Audio, Sunfire, Velodyne, SVS, HSU Research, Audio Research, Tannoy, Subwoofer, McCormack, Meadowlark, Conrad Johnson, Parasound, Magneplanar, Audible Illusions, Mark Levinson, Vintage, REL, Revel, Nakamichi, ESS, Emotiva. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “timekinetics” and is located in this country: US. This item can be shipped worldwide.

• Brand: Lafayette
• Type: Integrated Amplifier
• Model: LA-214

Vintage Bogen CHB 50 6L6 Tube Amplifier, VERY NICE. Unit is in nice cosmetic condition but does not work. Unit powered on, tubes lit up, had loud ac hum then fuse blew. So it will need new filter caps prior to any more testing. All Sales Are Final. PLEASE NOTE ALL FAULTS SHOWN IN PICTURES ARE CONSIDERED PART OF THE DESCRIPTION. ALL ITEMS ARE EXPERTLY PACKED TO ARRIVE IN GOOD ORDER. The items we sell are vintage items. We will tell you if an item has been tested, to what degree it has been tested and what functions work or don’t work. We can work with just about any schedule. If you need additional time, please let us know. Please inquire for more info. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “prairie-view-antiques” and is located in this country: US. This item can be shipped to United States.

• Model: Bogen CHB 50 6L6
• Country/Region of Manufacture: United States
• Type: Tube Amplifier
• MPN: CHB 50
• Brand: Bogen

Motorola Vacuum Tube Amplifier. The parts from this chassis can be used to build or repair your custom tube amplifier project. Approx dims: 9 x 8 x 6, weight 15 LBS. Please check out our auctions this week for other fine antiques and collectibles. Please read description and examine photos carefully as all sales are final. We will do our best to accommodate you. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “atomicamericana” and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, Korea, South, Indonesia, Taiwan, South Africa, Thailand, Belgium, France, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi Arabia, United Arab Emirates, Qatar, Kuwait, Bahrain, Croatia, Republic of, Malaysia, Brazil, Chile, Colombia, Costa Rica, Dominican Republic, Panama, Trinidad and Tobago, Guatemala, El Salvador, Honduras, Jamaica, Antigua and Barbuda, Aruba, Belize, Dominica, Grenada, Saint Kitts-Nevis, Saint Lucia, Montserrat, Turks and Caicos Islands, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, Ecuador, Egypt, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Vietnam, Uruguay.

Matching pair of vintage western Electric 350B tubes. Test very strong on my Western Electric tube tester. 4900, 5000 on minimum 2400. Please check the pictures for more information. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Tubes & Tube Sockets”. The seller is “nilgur-13″ and is located in this country: CN. This item can be shipped worldwide.

• Model: WESTERN ELECTRIC 350B
• Modified Item: No
• Country/Region of Manufacture: United States
• Custom Bundle: No
• Type: Vacuum Tube
• Brand: Western Electric