Breakout (1976 Atari)

pin  name        pin  name
---  ----        ---  ----
1    GRD         A    GRD
2    GRD         B    GRD
3    16.5 VAC    C
4    16.5 VAC    D
5    +5V         E
6    START LP 1  F
7    6.3 VAC     H
8    START LP 2  J    SERVE LED
9    COIN 2 NC   K
10   COIN 2 NO   L
11   COIN 1 NC   M
12   COIN 1 NO   N
13   START 1 NO  P
14               R
15   START 2 NO  S
16               T    GRD
17   STATIC ANT  U    PADDLE 1 (5k)
18   PADDLE 2    V    VIDEO
19   SERVE SW    W
20   SPEAKER     X
21   GRD         Y    GRD
22   GRD         Z    GRD