Shared Projects by dewhisna

Shared Projects by dewhisna

DRSSTC Bus Supply V3

2 layer board of 6.41 x 7.01 inches (162.7 x 178.0 mm)
Uploaded: February 8th 2021
Shared: February 8th 2021
Total Price: $224.40

Dual-Resonance Solid-State Tesla Coil 340VDC Bus Supply (from 120VAC or 240VAC).

This version is designed to be used with large electrolytic capacitors, s…

Dual-Resonance Solid-State Tesla Coil 340VDC Bus Supply (from 120VAC or 240VAC).

This version is designed to be used with large electrolytic capacitors, s…

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LiPo Battery Low Voltage Monitor V1

2 layer board of 1.00 x 0.85 inches (25.5 x 21.7 mm)
Uploaded: November 28th 2020
Shared: November 28th 2020
Total Price: $4.25

DO NOT BUILD – this design has oscillation issues in the voltage references causing continual false alarms. It's useless…

LiPo Battery Low Voltage Monit…

DO NOT BUILD – this design has oscillation issues in the voltage references causing continual false alarms. It's useless…

LiPo Battery Low Voltage Monit…

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Raspberry Pi Sump Pump Level Monitor Interface V1

2 layer board of 2.10 x 0.55 inches (53.4 x 14.0 mm)
Uploaded: September 29th 2020
Shared: September 29th 2020
Total Price: $5.80

Simple interface for HC-SR04 ultrasonic sensor to a Raspberry Pi to monitor sump water level.

Simple interface for HC-SR04 ultrasonic sensor to a Raspberry Pi to monitor sump water level.

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Frequency Counter FrontEnd V1

2 layer board of 0.50 x 0.75 inches (12.8 x 19.1 mm)
Uploaded: September 16th 2020
Shared: September 16th 2020
Total Price: $1.85

Front-end Schmitt Trigger conditioning board for cheap Chinese 1-50MHz Frequency Counter kits.

Front-end Schmitt Trigger conditioning board for cheap Chinese 1-50MHz Frequency Counter kits.

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Coil Tester V1

2 layer board of 1.46 x 1.51 inches (37.1 x 38.4 mm)
Uploaded: March 30th 2020
Shared: March 30th 2020
Total Price: $11.00

Implementation of the Coil Tester from [https://www.robkalmeijer.nl/techniek/electronica/radiotechniek/hambladen/73/1990/09/page48/index.html](https://www.ro…

Implementation of the Coil Tester from [https://www.robkalmeijer.nl/techniek/electronica/radiotechniek/hambladen/73/1990/09/page48/index.html](https://www.ro…

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