With the help of valve-radio.co.uk, some details of the Sugden A48 mkIII (1986-1991). The parallel output transistors were a change from serial No 4200 onwards, but the circuit was always fully complementary.
sugden48mkIII by
plybench, on Flickr
So, Tidying up some of the symmetry;
VT5/9 are first part of a Darlington-ish pair BC639
VT7/11 and the NPN power drivers - BDV95
BC639; emitter voltage 80V, collector current 1A, hFE 40-160, bandwidth product 200 MHz
BDV95; emitter voltage 100V, collector current 20A, hFE min 20
on the PNP side (fully symmetric, as for NPN)
VT6/10 BC640
VT8/12 BDV96
BC640 - as per BC639 except hFE 100-250, bandwidth product 150 MHz
BDV96 - emitter voltage 100V, collector current 10A, hFE min 20
resistors;
base of darlington pair drivers; R24, 25, 26, 27 - 10Ω
emitter of darlington pair to common; R28, 29, 32, 33 - 100Ω
emitter of power trans; R30, 31, 34, 35 - 0.33Ω
BugBear