Rare Sylvania NOS 6V6GTA Tubes MATCHED Pair 6V6 6v6GT 5992 Black Plates
Item History & Price
| Reference Number: Avaluer:29763632 | Brand: SYLVANIA |
| Type: Power Tubes |
Up for grabs is a great NOS pair of Sylvania 6V6GTA black plate tubes. MATCHED pair. Both tubes are made by Sylvania and one is labeled for distribution has RCA but both tubes are identical in every way. Great strong tubes fully tested for all parameters. Don’t miss these!!Tubes undergo dual testing procedures whenever possible. Analog tested on a fully calibrated and modernized Hickok 539c and digitally tested and displayed on the Divo/Orange tester for its ease of interpretation by... buyers. As a result, you are assured to be getting some of the finest quality, fully tested and proven vintage tubes available for sale.Hickok 539c Results:Tube 1= 4272 Gm Sylvania Tube 2= 4662 Gm RCA
Hickok 539c Min.= 2600 Gm
Tubes have been verified on the Orange tester and have passed all the following testsHeater filament test: Short circuitHeater filament test: Open circuitHeater filament test: Tolerance checkHeater cathode insulation: LeakageHeater cathode insulation: Short CircuitTests for heater current abnormalitiesAmplification factorVoltage gainPower gainScreen grid testMutual conductance testDual test for double triodesEmissionInter electrode leakageInter electrode short circuitFlash-over (arc detection, high voltage breakdown)Gas ionisation test
Please ask any questions or concerns and I will respond promptly. USA SHIPPING ONLY. Kindly check my other listings for more rare and hard to find tubes that are also available. All items will be very well packed and shipped the next day whenever possible. Please do not make requests for free shipping especially in conjunction with offers. I ship at my exact costs and at the most affordable rates possible. Although I DO NOT ACCEPT RETURNS because of the sensitive nature and personal tastes associated with vacuum tubes, I will certainly work with any buyer to address any problem that may occur such as a tube that arrives damaged in shipping etc. I require any buyer that encounters a problem to notify me within 72 HOURS after receipt of a pending issue. If as a buyer, you can not adhere to the sales terms of my listings I respectfully ask that you do not purchase tubes from me. Unless specifically stated in the listing and commonplace amongst the majority of tube sellers, I do not warranty or make any guarantees related to noise, hum or microphonics. As a courtesy, every tube I sell is put through a pin straightener as well as cleaned and treated with Deoxit to remove 50+ years of corrosion and grime. For Best Results DEOXIT Your Sockets!!FEEDBACK: I will leave excellent feedback for the buyer once I receive their feedback indicating they have received their item in good condition and are satisfied with the transaction and their buying experience.
Hickok 539c Min.= 2600 Gm
Tubes have been verified on the Orange tester and have passed all the following testsHeater filament test: Short circuitHeater filament test: Open circuitHeater filament test: Tolerance checkHeater cathode insulation: LeakageHeater cathode insulation: Short CircuitTests for heater current abnormalitiesAmplification factorVoltage gainPower gainScreen grid testMutual conductance testDual test for double triodesEmissionInter electrode leakageInter electrode short circuitFlash-over (arc detection, high voltage breakdown)Gas ionisation test
Please ask any questions or concerns and I will respond promptly. USA SHIPPING ONLY. Kindly check my other listings for more rare and hard to find tubes that are also available. All items will be very well packed and shipped the next day whenever possible. Please do not make requests for free shipping especially in conjunction with offers. I ship at my exact costs and at the most affordable rates possible. Although I DO NOT ACCEPT RETURNS because of the sensitive nature and personal tastes associated with vacuum tubes, I will certainly work with any buyer to address any problem that may occur such as a tube that arrives damaged in shipping etc. I require any buyer that encounters a problem to notify me within 72 HOURS after receipt of a pending issue. If as a buyer, you can not adhere to the sales terms of my listings I respectfully ask that you do not purchase tubes from me. Unless specifically stated in the listing and commonplace amongst the majority of tube sellers, I do not warranty or make any guarantees related to noise, hum or microphonics. As a courtesy, every tube I sell is put through a pin straightener as well as cleaned and treated with Deoxit to remove 50+ years of corrosion and grime. For Best Results DEOXIT Your Sockets!!FEEDBACK: I will leave excellent feedback for the buyer once I receive their feedback indicating they have received their item in good condition and are satisfied with the transaction and their buying experience.
