Mullard CV455 KB/DA (ECC81) (12AT7) dual print 1962 blkburn O get Valve Tube. (M223) BK600 test = 86/90

Chelmer Valve 12AX7WA ECC83 CV4004 x4 NOS Dual Triodes, test strong Click images to enlarge Description QUAD SET Telefunken, AWV ECC83 12AX7 Used and ideal for valve amps Mulllard Mullard M Chelmer Valve 12AX7WA  ECC83 CV4004 x 4 Audio triodes, NOS -matched test strong-circa 1960/70s Your bidding on 4 x New Old Stock, Chelmer valve  12AX7WA  ECC83 CV4004s in Excellent condition. These are the smooth plate, Halo getter, and beautifully made. Chelmer Valve Company Celmsford ESSEX England were not a valve manufacturer but sourced thesir valves mainly from England and Europe and re-badged them  A very euphoric sound and very much one of my preferred 12Ax7s for valve HiFi and guitar amplifiers. Surplus to my requirements all have been tested and each test strong and equally important each section of these triodes are closely matched. Almost without exception all test and exceed the AVO specification for a new tube . Ideal audio driver and pre-amp tubes and have a music signature very similar to Mullards.. Because of a Strong Mutual Conductance and Emission characteristic offer a wonderfully dynamic sound-stage. Have tested on my AVO and most exceed the specification for a new tube. A new tube should test at gm=1.6 mA/V Mutual Conductance and Emission at 1.2mA all four tubes either exceed the specification or are very close. Will ship anywhere the world at buyers expense. Please check out my other auction for early vintage quality audio tubes. NO reserve small starting bid Images sell! Get Supersized Images & Free Image HostingCreate your brand with Auctivas Customizable Templates. Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva.com. Track Page Views WithAuctivas Counter