Details
New old stock 4 pin triode. Various brands. The VT67 is essentially a type 30 with a high insulating base and a sturdier,120mA filament.
Signal Corps Number = VT-67
New old stock 4 pin triode. Various brands. The VT67 is essentially a type 30 with a high insulating base and a sturdier,120mA filament.
Signal Corps Number = VT-67