Partlist

PartValueNotes
R00 Ohma.k.a jumper wire
R1-4, R21-241k Ohm, 0.25W, 5%R21-24 drive the LEDs and can be adjusted to other values
RP1-410k Ohm, 0.25W, 5%
R11-142.2k Ohm, 0.25W, 5%Other values will work, see explanations
D1-41N4148
T1-42N3904Any equivalent will work (beware of pinout)
LED1-43mm LED
K1-4IM03TS relaysOther models from TE Connectivity / Axicom with the same footprint will work. See explanations
S1-4SPST switch, 2 leadsSpecific P/N: B3WN6005 from Omron Electronic
SV1-42x3-pin DIL header
SV53-pin SIL header
SV65-pin SIL headerI recommend using the angled version in this location, it fits nicely
RPI2x13-pin DIL header