Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing

Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing. This New old stock-testing matched pair of RCA ladder plate, slanted getter industrial 12AU7A dual triodes was tested on my Hickok 600A for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 2250/2300 micromhos for Tube One and 2350/2350 micromhos for Tube Two.. This New old stock-testing matched pair of RCA ladder plate, slanted getter industrial 12AU7A dual triodes was tested on my Hickok 600A for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 2250/2300 micromhos for Tube One and 2350/2350 micromhos for Tube Two. (New 12AU7s typically test within one standard deviation of 2200 micromhos). 。I have played them with adapters in my HiFi Buddy 6B4 amplifier and they sound terrific. They are dead quiet when the preamp is muted and have excellent frequency response, sound-staging, and dynamics.。WE HAVE A VERY LARGE SELECTION OF VACUUM TUBES. PLEASE CALL OR TEXT US AT 202-372-6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS.。TUBES ARE GUARANTEED GOOD ON SHIPMENT. IF YOU FEAR DAMAGE OR LOSS OF PARCEL IN TRANSIT, PLEASE INSURE THEM! OUR SHIPPING RESPONSIBILITY ENDS WHEN THE PARCEL IS ACCEPTED AND SCANNED BY THE US POSTAL SERVICE. ETSY IS CLEAR ON THIS. SOMETIMES THERE ARE INITIAL SCANNING DELAYS. WE HAVE ACCESS TO THE SAME INFORMATION YOU DO AND IT IS YOUR RESPONSIBILITY TO DEAL WITH THE USPS SHOULD THERE BE DELAYS OR LOSS OF A SCANNED PACKAGE. PLEASE BE PATIENT FOR THE FIRST DAY OR TWO IF THE PACKAGE IS STILL MARKED AS "PRE-TRANSIT." WE SHIP THE DAY AFTER THE SALE IF THE SALE WAS AFTER 9:30 AM EASTERN TIME. 。THIS IS NOT AMAZON. THERE WILL BE NO REPLACEMENTS FOR LOST PACKAGES. IN PRACTICE THIS MEANS YOU TAKE ON THE RESPONSIBILITY FOR THE LOSS IF THE PACKAGE IS MARKED AS "IN TRANSIT" OR AS "DELIVERED." MAIL GETS MISPLACED, STOLEN AND LOST. SOME COUNTRIES DO NOT HAVE INTERNAL TRACKING. CHINA IS AN EXCELLENT EXAMPLE. IF YOUR COUNTRY IS SIMILAR, IT IS YOUR RESPONSIBILITY TO INTERACT WITH YOUR CUSTOMS AND POSTAL AUTHORITIES TO FIND THE PACKAGE. CUSTOMS DELAYS CAN ADD WEEKS TO DELIVERIES.。MOST OF THE TUBES WE SELL ARE OVER 50 YEARS OLD. WE CANNOT GUARANTEE FOR FAILURES AFTER POWER UP AS THERE IS NO WAY TO DETERMINE HOW TUBES WILL INTERACT WITH YOUR ELECTRONICS OR IF THEY WERE MISTREATED IN TRANSIT; NOR IS THERE A WAY TO DETERMINE WHETHER THEY MAY HAVE FATAL FLAWS! WE CAN ONLY TEST FOR THE PARAMETERS MENTIONED ABOVE. 。 。

Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing

Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing
Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing
Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing
Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing
Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing

Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing

Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing,Valves NOS-Testing Matched Pair RCA 12AU7 12AU7A Vacuum Tubes,This New old stock-testing matched pair of RCA ladder plate, slanted getter industrial 12AU7A dual triodes was tested on my Hickok 600A for shorts, gas and transconductance, There were no shorts or gas, Transconductance measured 2250/2300 micromhos for Tube One and 2350/2350 micromhos for Tube Two, Free Worldwide Shipping BEST Price Guaranteed Online fashion store Incredible Deals on the Hottest Boutique. 12AU7A Vacuum Tubes Valves NOS-Testing Matched Pair RCA 12AU7 daisysnews.com.

Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing
Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing
Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing

Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing

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Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing

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Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing


This New old stock-testing matched pair of RCA ladder plate, slanted getter industrial 12AU7A dual triodes was tested on my Hickok 600A for shorts, gas and transconductance, There were no shorts or gas, Transconductance measured 2250/2300 micromhos for Tube One and 2350/2350 micromhos for Tube Two, Free Worldwide Shipping BEST Price Guaranteed Online fashion store Incredible Deals on the Hottest Boutique. daisysnews.com
Matched Pair RCA 12AU7 12AU7A Vacuum Tubes Valves NOS-Testing daisysnews.com