tested strong 74 TV7D/U tube tester ( reference good at 36 ), black rugged plate , pan getter , black baseold yellow LOGO FIVRE OLD Production for Army , wonderful wide getter area mirrored high quality ,high grade best italian maufacturer hand made mouth blowedtype 76 Vintage Vacuum tube from oldest production made in 1930's made in Italy genuine original vintage tube THE BEST VERSION FOR PRE AMPLIFIER DRIVER STAGE
for 45 = 245 = CX345 = 145 = A245 = ER45 = EX645 = UX245 = PH245 = 445 = SX245 = MX245 = 245-C = L45 = ER245 = DX245 = PA245 = AC45 = TX-45 = VX245 = X245 = T-45 = P245 = G45 = AX-245 = RayX-245 = RYB245 = NU-45 = C-245 = NX-245 50 2A3 50 = VT-50 = 150_Arcturus = A750 = SO-2 = CV2533 = CX350 = PH250 = UX250 = 250 = 450 = 585 = EX650 = PA250 = 57T250 = L_WLS = L50 = SX250 = VX250 = ER250 = RX250 = RYB250 = X-250 = RayX-250 = TC250 = NU-50 = SLX250 = G-50
features: tube valve lampe röhre tsf 진공관 真空管 HAM RADIO audio hi-end hi-fi diy POWER AMPLIFIER Pre-Amplifier Preamp Pri stereo SE Single Ended PP Push-Pull preamp pre amplifier sealed tubes of best quality 1930sbox 77