Bill's Ignition Coil Driver

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2 layer board of 2.10x2.18 inches (53.29x55.37 mm).
Shared on April 10th, 2017 15:38.

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MMDVM SP8NTH 6.2.1

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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 1.30x0.82 inches (32.94x20.83 mm).
Shared on January 31st, 2017 15:49.

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2 layer board of 0.91x0.32 inches (23.04x8.08 mm).
Shared on December 29th, 2016 15:30.

Coax powered LNA for RTL SDR

https://fabiobaltieri.com/2014/06/22/lna/

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