1956 General Electric 12AU7 Audio Tubes

1956 General Electric 12AU7 Audio Tubes Introduction

On-line sales only No cash Orders are payable only by emt Pre-paid by emt safe distance pick up orders for local GTA arranged daily Shipping is available to anywhere within Canada +$20.00 per tube order for 1 - 6 tubes Or free shipping on orders of $250.00 or more! For local GTA Finch+Dufferin area pre-paid emt pick ups orders arranged daily We can only offer pre paid safe distance pick ups We'll arrange to safely meet all wearing face masks in our lobby Best regards, stay safe and healthy with G-d's blessings! Audiophiles the performance of these 1956 GE 12AU7 tubes will wake up your systems! You'll be hearing all the instruments with rich proper tone, very nice sonic signature, with wonderful balance and control! known as great non-distended or bloated mid range and with amazingly very accurate bass! These are some really nice quiet Vintage General Electric - Vacuum Tube NOS (New Old Stock) These are excellent quality sweet sounding beautiful vintage 1956 GE 12AU7 tubes All are date code 1956 all with good lettering with horseshoe getters These are some of the best sounding are the US made GE They were all selected for low noise/microphonics. Extremely clean silkscreen print, date code is clear 1956 Tubes sound fantastic with excellent mids! NOS level test, ready for a very long life of tone. The GE versions pretty much always used grey plates All are date code 1956 all with good lettering with horseshoe getters The numbers are etched into the glass with a pattern of dots below the number. Don't miss trying these "organ stock production" 12AU7 tubes that were as well also sold to organ manufacturers. These sweet tubes were screened for audio use in organs, and make great tubes in pre amps/amps! All of these vintage tubes used a chalky white label paint You can do an ebay / google search for these 1956 GE 12AU7 tubes We have some of these really nice quiet Vintage General Electric - Vacuum Tube NOS (New Old Stock) These are excellent quality sweet sounding beautiful vintage 1956 GE 12AU7 tubes These tubes were made by G.E.in 1956 Some of the best sounding made by GE USA They were all selected for low noise/microphonics. Extremely clean silkscreen print, date code is clear 1956 Tubes sound fantastic with excellent mids! NOS level test, ready for a very long life of tone. The GE versions pretty much always used grey plates and horseshoe getter The numbers are etched into the glass with a pattern of dots below the number. Don't miss trying these "organ stock production" 12AU7 tubes that were as well also sold to organ manufacturers. These sweet tubes were screened for audio use in organs, and make great tubes in pre amps/amps! All of these vintage tubes used a chalky white label paint You can do an ebay/google search for 1956 GE 12AU7 All tubes test strong! They have been tested on a fully updated calibrated B+K 747 tube tester (Min 725 Max 1250) Test Results: Tube 1: Tests 1300/1300 Tube 2: Tests 1275/1250 Tube 3: Tests 1300/1250 Tube 4: Tests 1200/1200 No gas leaks or shorts $80.00/matching pair Payable by EMT How do you know when your power tubes need replacing? A: These are the most common signs that tubes need replacement: Excessive noise (hiss, hum) including squealing or microphonic tubes. Loss of high end. ... A muddy bottom end; Sounds like there is too much bass and note clarity is lost. Erratic changes in the overall volume. ... The amp doesn't work! Crackling, squeals and feedback, excessive noise and muddiness or low output are all evidence of tube problems. Power tubes. The two main symptoms of a power tube problem are a blown fuse or a tube that begins to glow cherry red. Either are typically indicative of a power tube failure Tubes that have "set up" for a while often collect gas. This gas either comes from slow leakage through tube seals or outgassing of tube elements. This is the number one problem with old vacuum tubes. Another cause of leakage currents are deposits on the insulation inside the tube envelope.