(!!!!) (Recommended Single) JG-6072 GE black plates triple mica “”U”” getter halo like new 1950”s (2.5/3.1ma) (recommended for guitar amp or mic preamp)

1 low noise single tube) JG-6072 GE black plates triple mica “”U”” getter halo like new 1950”s in white box

2.5ma Gm=1600

3.1ma Gm=1700

Tested on Amplitrex

Vplate=250V

Vgrid=-4V

Good Ma range = 2 – 3ma

Good Gm range = 1500

– sE Electronics Z5600a II Tube Microphone
– Fender Bassman 1953
– Korby Kat
– Telefunken 251
– Silvaweld SWC 450 preamp
– Peluso P12 mic
– Kondo M-1000 and Kondo KSL-M77
– Kondo Kassai Silver amp
– Kondo KSL-Kegon Power Amplifier
– Avantone cv12
– Rode mic (Classic I)
– Audio Note L3 phono
– Ongaku
– AKG C12 1950”s
– AKG C12 VR
– Soundelux U95
– Soundelux E251C
– Soundelux ELUX 251 (recreates the sonic beauty of the Telefunken ELAM 251)
– Electronaut M63 mic preamp 2010
– Pearlman Microphones TM 250 (like E LAM 250)
– Lawson mic
– Chunger C12 clone