Sylvania 7025 Radiotron Radio Vacuum Electron Tubes NOS In Original Box ~ T444 Sylvania 7025 Radiotron Radio Vacuum Electron Tubes NOS In Original Box Condition: The Radio Tubes are NOS (New Old Stock). They are in the original box which has been open but the tubes have never been used. Please Check Out My Store For Other Electronics!!! The end of the listing is for storage purposes only Thank you **Please note: We are away from the office for the weekends. If you purchase multiple items on a Friday you may not receive an invoice until Monday afternoon. Questions may also be answered at that time. Thank you for your patience. Please note that we are out of the office over the weekend. If your item is purchased on Friday you may not receive an invoice until Monday afternoon. Questions may also be answered at that time. Thank you for your patience. The letter and number combination at the end of our title is for inventory purposes only.* I will gladly combine items to reduce shipping costs if more than one listing is purchased. If buying multiple items, PLEASE do not pay for the item until you have made all of your selections. Then, located at the top right corner of your cart page, you will find “Request Total”. Click there to review your items again and submit the list. We will send an invoice at that time, combining all items into one package to reduce the shipping cost.See my other listings for more items selling at this time.All questions are welcome.Thank you!!! Powered by SixBit’s eCommerce Solution
Item Tag: SYLVANIA
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TRUE 7025 SYLVANIA NOS PLATINUM LOW-NOISE TUBE with AMPLITREX BEST TEST RESULTS
TESTED AT REAL-WORLD 500V POWER LEVELS ON AMPLITREX AT-1000. REAL 7025 TUBES marked “7025” WITH GREAT LETTERING! All our tubes are Tested on Amplitrex AT1000 Digital Tube Test System. PASSED THE AMPLITREX DIGITAL TESTS.
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1961 12AX7 7025 Sylvania Tube Gray Short Plate O Getter TV7 Test NOS SY-7
Triode:1 Tested NOS: 80/ 32 Baseline. Triode: 2 Tested NOS: 74/ 32 Baseline. 12AX7 Minimum Range: 32. 12AX7 Nos Range 45 +. Top O Getter. 12AX7A / ECC83 SYLVANIA Tube. Made In USA. Manufactured in Altoona, Pennsylvania in 1961 39th Week.
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SYLVANIA 6SN7 GTB TUBE 1968 GREEN LABEL BLACK BASE CHROME TOP FOIL MATCHED SET
🏭 Manufactured by Sylvania in Emporium, Pennsylvania during the 12th week March of 1968. ✨ Sylvania factory boxes are included. PERFECT MATCHED SET. 📅 42 = internal lot, tooling, shift, or inspector designation.
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SYLVANIA 6SN7GTB AUDIO VACUUM TUBE BLACK T PLATE O GETTER, COIN BASE TV-7 TESTED
The minimum is equal to 65% of the life of the tube. TESTED AT: 103/99.
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Sylvania 6SN7GTB Vacuum Tube Red Print USA 2500/2400 Estate Tested
● Sylvania 6SN7GTB vacuum tube. Prior-owner test readings written directly on the glass are 2500 / 2400. NOTE: Original handwritten identification and test notes shown on the tube, box, or storage bag are from the late William “Billy” Odell’s personal collection and records.
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6SN7 GTB NOS SYLVANIA YELLOW LABEL PLATINUM MATCHED PAIR SHORT BOTTLE TV7
*****SELLING WORLDWIDE******NOS PLATINUM MATCHED PAIR triode-triode & tube-tube in transconductance & plate current)>>>> PAIR SYLVANIA 6SN7GTB,NOS,SHORT BOTTLE,YELLOW Label.”STOCK PHOTO”.97-99%% Label Visible,US MADE.Tubes will be supplied in new Sylvania box.BLACK T-PLATES,WE HAVE ENOUGH TO GIVE A PLATINUM MATCHED TUBES,CLEAN OCTAL PINS,TIGHT BASE.**** TWICE TESTED. *****1st)NO SHORTS,NO GAS AND WELL-BALANCED TRIODES IN TRANSCONDUCTANCE AND PLATE CURRENT(PLATINUM MATCHED) USING HICKOK TUBE TESTER *****2nd)TUBES ARE NOT USABLE UNLESS THEY ARE LIVE AUDIO TESTED WITH NO HUM & NON-MICROPHONIC,TESTED USING MODIFIED DYNACO PAS 3 & TUBE OTL. Having a minimum of, TUBE1) 92/94 & 10.0/10.2 ma TUBE2) 92/96 & 9.9/10.2 ma uSIEMENS /PLATE CURRENT Where 50/50 is minimum,which is 65% of NOS & NOS/100% start at 77/77 with newly calibrated TV7 TUBE TESTER. *****TUBES WITHOUT TEST DATA IS NOT WISE DECISION AND LISTING ADS THAT SAY’S “test good”OR “test strong” WITH HIDDEN TEST RESULTS IN VACUUM TUBES IS NOT ENOUGH AND AVOID SURPRISES.****BEWARE OF SOME CLONED/FAKE SYLVANIA 6SN7’S. *****WE DO COMBINE SHIPPING ****** MY WORLDWIDE SHIPPING IS ACTUAL USPS REGISTERED MAIL. ******PLEASE CHECK MY OTHER COOL AUDIO STUFF.. *****QUESTIONS ARE ALWAYS WELCOME.
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4 x 6SN7gtb Sylvania/Philco Tubes*Chrome Dome*Very Strong Quad*1950s*#17
4 x 6SN7gtb Sylvania Tubes. Made in USA for Philco. Tested on Enhanced Triplet E3444 Laboratory Tester. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable.