Semi-Transistor Igniter repaired

Situating in the very convenient location as my working place is(20 minutes by train), went I Osaka Nippombashi Silicon House for semiconductors and resistors. Switching Tr. C4552s were the amplifier this time instead of former C5352. They will do the work in DIY Semi-Tr Igniter circuitry, have I enough confidence about these alternatives. Also, prepared I an emergency spare module part. Rectifier diode this time is 6A/1000V taking some margin.
It goes without writing that some very quick and smooth combustion could be obtained after setting this device in the ignition circuitry of my air-cooled VW 1302 Super Beetle.