USB Mux.brd

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2 layer board of 0.52x1.48 inches (13.08x37.46 mm).
Shared on March 14th, 2017 15:05.

USB Mux mudule https://hackaday.io/project/20326-low-cost-kvm

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2017-3-10_OSHPark_StevenChang_HB_Daughter_GS61004B.zip

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4 layer board of 2.91x2.26 inches (73.81x57.40 mm).
Shared on March 14th, 2017 14:48.

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2 layer board of 1.96x2.01 inches (49.73x51.03 mm).
Shared on March 14th, 2017 12:24.

MMDVM arduino due 5x5cm https://groups.yahoo.com/neo/groups/mmdvm/files

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2 layer board of 1.77x1.56 inches (44.91x39.62 mm).
Shared on March 14th, 2017 12:23.

1PPS distribution amplifier.

BOM:

R1-R12 = 100r

C1-C3 = 0.01uF

IC1-IC2 = 74AC04

IC3 = 74AC14

Use AC parts as they are much faster.

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2 layer board of 2.09x1.11 inches (53.14x28.17 mm).
Shared on March 14th, 2017 12:00.

Small adjustable current sink

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