Terminalscope parts list
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R1, R4          2.2k 0.25W resistor
R2, R3, R6, R5  1k 0.25W resistor
R7              470 ohm 0.25W resistor
R8              68k 0.25W resistor
R9, R11         100k 0.25W resistor
R10             2.2M 0.25W resistor
C1, C5, C12     0.1uF monolithic ceramic capacitor
C2, C10         10uF electrolytic capacitor
C3, C4          18pF monolithic ceramic capacitor
C6              1uF electrolytic capacitor
C7, C8          560pF radial polystyrene film capacitor
C9, C10         4.7uF electrolytic capacitor
C11             0.001uF film capacitor
VR1, VR2        100k 25-turn 3/8" rectangular trimpot (Jameco #853599)
VR3, VR4, VR5   10k 25-turn 3/8" rectangular trimpot (Jameco #853572)
Z1              2.4V zener diode (1N5221B)
X1              20MHz crystal
U1              MC34074 quad op amp
U2              4066 quad bilateral switch
U3              LM358 op amp
U4              ATMEGA328P-20PU 
U5              ATTINY45-20PU
SW1             PCB-mount SPDT switch (0.1" pin spacing)
CONN1-3         Low-profile right-angle PCB-mount BNC connector (Jameco #161656)
CONN4           6-pin mini-DIN connector, right-angle, PCB-mount
CONN5           2x3 0.1" male header
CONN6           4x1 0.1" female header

Two 8-pin DIP sockets
Two 14-pin DIP sockets
One 28-pin DIP socket