V30

[V30 page on Wikipedia]

Pinout (DIP40)

    +--------\/--------+
 1 -|gnd            vcc|- 40
 2 -|ad14          ad15|- 39
 3 -|ad13        a16/s3|- 38
 4 -|ad12        a17/s4|- 37
 5 -|ad11        a18/s5|- 36
 6 -|ad10        a19/s6|- 35
 7 -|ad9        /bhe/s7|- 34
 8 -|ad8          mn/mx|- 33
 9 -|ad7            /rd|- 32
10 -|ad6  (hold) gt0/rq|- 31
11 -|ad5  (hlda) gt1/rq|- 30
12 -|ad4   (/wr)  /lock|- 29
13 -|ad3  (m/io)    /s2|- 28
14 -|ad2  (dt/r)    /s1|- 27
15 -|ad1  (/den)    /s0|- 26
16 -|ad0   (ale)    qs0|- 25
17 -|nmi  (/inta)   qs1|- 24
18 -|intr         /test|- 23
19 -|clk          ready|- 22
20 -|gnd          reset|- 21
    +------------------+

Frequency: set reader to FREQ, put black probe to GND, red probe to 19 to measure CPU clock

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[V30 page on CPU-World]