Frequency Central Cryptograph, Build Documentation

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Bill of Materials
1K x 40
10K x 6
22K x 1
47K x 2
(in place of 27K
on older version)
100K x 20
120K x 1
(in place of 27K
on older version)
All resistors ¼ watt
metal film.
10uF x 1
47uF x 2 CD4514 *
TL084 x 4
TL072 x 2
BC547 x 1
1
78L05 x 1
3mm red LED x 2
0
3mm green LED x 6
24 pin IC socket x 1
14 pin IC socket x 4
8 pin IC socket x 2
B100K x 16
(or these) * *
3.5mm socket x 8
SPDT o
n/on
x 2
SPDT on/off/on x 4
Male header x 2
(cut to size)
Female header 2
(cut to size)
Power header x 1
* PCB has option
for either PDIP or SOIC CD4514 from December 2019
** I prefer the Song Huei tall trimmers because they have a longer shaft and a white
notch.