You are buying 1 X tested Marconi / Osram MS4B valve British 5 pin with top cap . 3 Available All test good
OTHER EQUIVALENTS . AC/S2 AC/SG AC/SH AS4120 CV3553 MS/Pen MSG/HA MSG/LA SGA1 SP4 SV4 SV4A SV4B
All orders are sent next day after payment has been received