Elecraft K2 Owner's Manual - Manual (Page 152)

Appendix D - K2 Detail Pictures
Figure 7
PA and Low Pass Filter Detail
Figure 8
PA transformer (T4), Bifilar PA collector
transformer (T3) and Driver to PA
transformer, (T2). Z1, Z2 feedback ferrite
beads are also shown.
Figure 9
PA Transistor mounting detail on bottom
of RF PCB. Right angle bend of transistor
leads shown along with self-retaining
mounting spacer and black shoulder
washer (between spacer and transistor
tab). 2D block shown between transistors.
Figure 10
PLL VCO transformer (T5) detail. L30 and
VCO relays are also shown