Amperex Mullard 12AT7 ECC81 Vacuum Tube VF3 B3C4 ***** Tested on our proprietary tester , the E3444 Triplett/Westmore 501 :Its a Triplett 3444 / Westmore 501 that has been enhanced.This tester uses regulated power sources for the bias, plate, & screen voltages, as well as modified operating & testing procedures.Filament voltage is also controlled. Tubes are tested in accordance with the manufacturers specifications; measurements closely align with a laboratory tester built to rigorously measure vacuum tube characteristics. Tubes can be accurately matched for gm & plate current at the manufacturers specified test points or at other specified test points.***** This tester was prepared by Mr. Paul Hart of Falls Church , Virginia. ************************************************************************** Industry Bogey transconductance = 5,500/5500 µmhos & Industry Bogey plate current = 11.0/11.0 mAResults = 4850/6150 µmhos ~ 9.6/6.8 mAUSA Shipping $6 I have many other types of tubes ~ No Additional Shipping Charges All tubes Guaranteed THANK YOU! 106 ~~~~ Please click on the link below to view more items in my store. ~~~~~~~~ GreenGirls Guaranteed VintageTubes

Harman Kardon Mullard EZ81 6CA4 Vacuum Tube Very Strong & Balanced ******************************************************************* Tested on a Hickok 6000A Min = 800/800Results = 2640/2510 ********************************************************************* USA Shipping $6 ~ Higher OverseasI have many other types of tubes ~ Just Search my store No Additional Shipping Charges All tubes are Guaranteed ?????? Thank You! ?????? 121 ~~~~ Please click on the link below to view more items in my store. ~~~~~~~~ GreenGirls Guaranteed VintageTubes

Amperex Mullard 12AT7 ECC81 Vacuum Tube VF3 B3C4 ***** Tested on our proprietary tester , the E3444 Triplett/Westmore 501 :Its a Triplett 3444 / Westmore 501 that has been enhanced.This tester uses regulated power sources for the bias, plate, & screen voltages, as well as modified operating & testing procedures.Filament voltage is also controlled. Tubes are tested in accordance with the manufacturers specifications; measurements closely align with a laboratory tester built to rigorously measure vacuum tube characteristics. Tubes can be accurately matched for gm & plate current at the manufacturers specified test points or at other specified test points.***** This tester was prepared by Mr. Paul Hart of Falls Church , Virginia. ************************************************************************** Industry Bogey transconductance = 5,500/5500 µmhos & Industry Bogey plate current = 11.0/11.0 mAResults = 4850/6150 µmhos ~ 9.6/6.8 mAUSA Shipping $6 I have many other types of tubes ~ No Additional Shipping Charges All tubes Guaranteed THANK YOU! 106 ~~~~ Please click on the link below to view more items in my store. ~~~~~~~~ GreenGirls Guaranteed VintageTubes

Harman Kardon Mullard EZ81 6CA4 Vacuum Tube Very Strong & Balanced ******************************************************************* Tested on a Hickok 6000A Min = 800/800Results = 2640/2510 ********************************************************************* USA Shipping $6 ~ Higher OverseasI have many other types of tubes ~ Just Search my store No Additional Shipping Charges All tubes are Guaranteed ?????? Thank You! ?????? 121 ~~~~ Please click on the link below to view more items in my store. ~~~~~~~~ GreenGirls Guaranteed VintageTubes

STERN Mullard 510 amplifier. Highly regarded STERN Mullard 5/10 amplfier with the excellent PARMECO transformers. In the 1950s Mullard/Philips designed several amplfiers to help sell their valves. Called the 5/10 as there 5 valves giving 10 Watts output. Although never made commercially companies like STERN produced kits which sometimes included the excellent PARMECO transformers as this one does. This model was not working as some resistors and capacitors had failed. But all the original Mullard valves test OK, so are included. The circuit and other information is available on the internet. Please note. Although not fully restored the amplifier was left running for 8 hrs with no problems but would obviously benefit from a critical component upgrade and new valves in due course. I fitted a new good quality RCA socket as the original was a Belling Lee aerial type. If you intend to use this amplifier it will require qualified service before use, therefore no mains plug is supplied. The amplifier may be inspected and auditioned prior to buying or will be well packed with valves removed for shipping by dhl courier.