J Mitch Hopper

2:07

RDC-3 Rotary Digital Clock - Version 3

J Mitch Hopper

Shared 2 years ago

148 views

10:42

Lincoln Trail Hike - BSA

J Mitch Hopper

Shared 2 years ago

109 views

1:10

Field Day at SVRC - 2022

J Mitch Hopper

Shared 3 years ago

35 views

1:47

Waste of Time - Project #3

J Mitch Hopper

Shared 3 years ago

52 views

3:05

Phonemes, Allophones and Natural Speech

J Mitch Hopper

Shared 3 years ago

209 views

2:57

Resistors & Capacitors in Series & Parallel

J Mitch Hopper

Shared 4 years ago

85 views

4:16

Ohm’s Law: Resistance, Current, & Voltage

J Mitch Hopper

Shared 4 years ago

70 views

4:26

Amateur Radio Prepares for the Worst

J Mitch Hopper

Shared 4 years ago

409 views

8:37

Field Day 2021 in the Time of Covid-19 (English Version)

J Mitch Hopper

Shared 4 years ago

152 views

8:37

Field Day 2021 en la época del Covid-19 (versión en español)

J Mitch Hopper

Shared 4 years ago

32 views

4:43

Fish Soccer at Haigh Quarry

J Mitch Hopper

Shared 4 years ago

92 views

7:55

Field Day in the Time of COVID-19

J Mitch Hopper

Shared 5 years ago

221 views

5:18

Binary Theory 101: A Really Basic Explanation

J Mitch Hopper

Shared 5 years ago

95 views

0:34

Sony MV 10000 w/TR-61

J Mitch Hopper

Shared 5 years ago

229 views

2:43

Snorkeling Molokini Crater, Maui, Hawaii

J Mitch Hopper

Shared 5 years ago

47 views

2:46

Snorkeling with Spinner Dolphins at Kona, Hilo, Hawaii

J Mitch Hopper

Shared 5 years ago

306 views

4:07

Horseback Ride at Wawiliwili

J Mitch Hopper

Shared 5 years ago

112 views

10:22

Matilda vs The Atlantic

J Mitch Hopper

Shared 6 years ago

164 views

2:50

Nixie Tube Micro Processor Clock

J Mitch Hopper

Shared 6 years ago

74 views

3:43

Parametric Equalizers Explained - Simply

J Mitch Hopper

Shared 6 years ago

123 views

5:53

Diving Aruba

J Mitch Hopper

Shared 6 years ago

64 views

7:44

SSTV 101 by K9ZXO

J Mitch Hopper

Shared 6 years ago

483 views

3:01

Three Minutes at the NAB Convention - 2018

J Mitch Hopper

Shared 6 years ago

65 views

18:51

2018 caribbean adventure

J Mitch Hopper

Shared 6 years ago

28 views

10:54

Inside Television with Mike Shapiro - Vintage 1975

J Mitch Hopper

Shared 6 years ago

744 views

10:40

KTTV-TV - 1958 Videotape Demo

J Mitch Hopper

Shared 6 years ago

1K views

9:28

Computer Animation Industries - demo from 1972

J Mitch Hopper

Shared 6 years ago

77K views

51:00

Riding the Sangamon Valley Bike Trail

J Mitch Hopper

Shared 6 years ago

224 views

12:50

Diving Ambergris Caye Belize - 2018

J Mitch Hopper

Shared 6 years ago

148 views

2:57

Matilda's OpenWater Certification Dive

J Mitch Hopper

Shared 6 years ago

83 views

4:02

A Few Minutes in Zion National Park

J Mitch Hopper

Shared 7 years ago

68 views

5:20

Modes, Modes, and More Modes

J Mitch Hopper

Shared 7 years ago

109 views

24:26

Sangamon Valley Radio Club - 70th Anniversary Dinner

J Mitch Hopper

Shared 7 years ago

84 views

0:51

blinkie light final project

J Mitch Hopper

Shared 7 years ago

40 views

2:01

blinkie lights 2018

J Mitch Hopper

Shared 7 years ago

146 views

21:06

Diving Carriacou & Grenada - 2017

J Mitch Hopper

Shared 7 years ago

157 views

3:04

WVEM-FM Tower Relocation - 1980 (super 8mm)

J Mitch Hopper

Shared 7 years ago

70 views

26:37

Alaskan Sampler 2017

J Mitch Hopper

Shared 7 years ago

106 views

1:52

k9zxo antenna switch

J Mitch Hopper

Shared 7 years ago

1.8K views

6:15

logging and adif

J Mitch Hopper

Shared 7 years ago

1.4K views

5:17

What Are Maidenhead Grid Squares?

J Mitch Hopper

Shared 7 years ago

1.1K views

3:48

Audio, Modulation, Distortion, and Square Waves

J Mitch Hopper

Shared 7 years ago

977 views

6:57

Diving Pennyroyal Blue Springs Quarry - July 2017

J Mitch Hopper

Shared 7 years ago

37K views

3:06

matilda discovers scuba 2017

J Mitch Hopper

Shared 7 years ago

318 views

17:56

Diving Roatan 2017

J Mitch Hopper

Shared 8 years ago

275 views

5:36

Five Minutes in Red Rock Canyon

J Mitch Hopper

Shared 8 years ago

45 views

3:59

A Voyage of Discovery

J Mitch Hopper

Shared 8 years ago

33 views

1:17

K9ZXO - Unique Modulation Monitor

J Mitch Hopper

Shared 8 years ago

95 views

2:19

Assembling the Akai X-150D

J Mitch Hopper

Shared 8 years ago

2.1K views

15:07

diving key largo 2016

J Mitch Hopper

Shared 8 years ago

91 views

4:18

Rooftop Transmitter/Tower Tour - Trump Tower, Chicago

J Mitch Hopper

Shared 8 years ago

1.9K views

9:31

fishing at haigh

J Mitch Hopper

Shared 8 years ago

120 views

12:08

Diving Mermet Springs - 2016

J Mitch Hopper

Shared 9 years ago

301 views

14:38

Hellschreiber - What is that??

J Mitch Hopper

Shared 9 years ago

14K views

3:03

K9ZXO - Two Unusual Antennas

J Mitch Hopper

Shared 9 years ago

479 views

2:50

Gottlieb "Seashore" Pinball Machine - Back From the Dead!

J Mitch Hopper

Shared 9 years ago

748 views

6:11

Scuba diving Bonne Terre Mine trails #5 & #8.

J Mitch Hopper

Shared 9 years ago

356 views

5:24

Diving Bonne Terre Mine - Trails #3 and #5

J Mitch Hopper

Shared 9 years ago

266 views

3:37

Diving Haigh Quarry

J Mitch Hopper

Shared 9 years ago

472 views

9:47

Scuba Diving Composite

J Mitch Hopper

Shared 9 years ago

72 views