Description
MARCONI (OSRAM) KT66 - CV1075 Price is for 1 tube in excellent tested condition. Made in England some 60+ years ago. With gray coating inside the glass and brown base. Tested VERY STRONG as follow: Ia = 81mA | S = 7.2 mA/V | Ig2 = 9.46 mA Test under: Ua=250V; Ug2=250V; Uf=6.3V; Ug1=-15.0V Where 100% is Ia=85.0mA and S=6.0mA/V Very well known tube with excellent characteristics! Shipping will be Airmail registered with tracing number. Other shipping methods available on request.