J Mitch Hopper
Quarry Fishing 2025
2:55
J Mitch Hopper
RDC-3 Rotary Digital Clock - Version 3
2:07
J Mitch Hopper
Lincoln Trail Hike - BSA
10:42
J Mitch Hopper
Field Day at SVRC - 2022
1:10
J Mitch Hopper
Waste of Time - Project #3
1:47
J Mitch Hopper
Phonemes, Allophones and Natural Speech
3:05
J Mitch Hopper
Resistors & Capacitors in Series & Parallel
2:57
J Mitch Hopper
Ohm’s Law: Resistance, Current, & Voltage
4:16
J Mitch Hopper
Amateur Radio Prepares for the Worst
4:26
J Mitch Hopper
Field Day 2021 in the Time of Covid-19 (English Version)
8:37
J Mitch Hopper
Field Day 2021 en la época del Covid-19 (versión en español)
8:37
J Mitch Hopper
Fish Soccer at Haigh Quarry
4:43
J Mitch Hopper
Field Day in the Time of COVID-19
7:55
J Mitch Hopper
Binary Theory 101: A Really Basic Explanation
5:18
J Mitch Hopper
Sony MV 10000 w/TR-61
0:34
J Mitch Hopper
Snorkeling Molokini Crater, Maui, Hawaii
2:43
J Mitch Hopper
Snorkeling with Spinner Dolphins at Kona, Hilo, Hawaii
2:46
J Mitch Hopper
Horseback Ride at Wawiliwili
4:07
J Mitch Hopper
Matilda vs The Atlantic
10:22
J Mitch Hopper
Nixie Tube Micro Processor Clock
2:50
J Mitch Hopper
Parametric Equalizers Explained - Simply
3:43
J Mitch Hopper
Diving Aruba
5:53
J Mitch Hopper
SSTV 101 by K9ZXO
7:44
J Mitch Hopper
Three Minutes at the NAB Convention - 2018
3:01
J Mitch Hopper
2018 caribbean adventure
18:51
J Mitch Hopper
Inside Television with Mike Shapiro - Vintage 1975
10:54
J Mitch Hopper
KTTV-TV - 1958 Videotape Demo
10:40
J Mitch Hopper
Computer Animation Industries - demo from 1972
9:28
J Mitch Hopper
Riding the Sangamon Valley Bike Trail
51:00
J Mitch Hopper
Diving Ambergris Caye Belize - 2018
12:50
J Mitch Hopper
Matilda's OpenWater Certification Dive
2:57
J Mitch Hopper
A Few Minutes in Zion National Park
4:02
J Mitch Hopper
Modes, Modes, and More Modes
5:20
J Mitch Hopper
Sangamon Valley Radio Club - 70th Anniversary Dinner
24:26
J Mitch Hopper
blinkie light final project
0:51
J Mitch Hopper
blinkie lights 2018
2:01
J Mitch Hopper
Diving Carriacou & Grenada - 2017
21:06
J Mitch Hopper
WVEM-FM Tower Relocation - 1980 (super 8mm)
3:04
J Mitch Hopper
Alaskan Sampler 2017
26:37
J Mitch Hopper
k9zxo antenna switch
1:52
J Mitch Hopper
logging and adif
6:15
J Mitch Hopper
What Are Maidenhead Grid Squares?
5:17
J Mitch Hopper
Audio, Modulation, Distortion, and Square Waves
3:48
J Mitch Hopper
Diving Pennyroyal Blue Springs Quarry - July 2017
6:57
J Mitch Hopper
matilda discovers scuba 2017
3:06
J Mitch Hopper
Diving Roatan 2017
17:56
J Mitch Hopper
Five Minutes in Red Rock Canyon
5:36
J Mitch Hopper
A Voyage of Discovery
3:59
J Mitch Hopper
K9ZXO - Unique Modulation Monitor
1:17
J Mitch Hopper
Assembling the Akai X-150D
2:19
J Mitch Hopper
diving key largo 2016
15:07
J Mitch Hopper
Rooftop Transmitter/Tower Tour - Trump Tower, Chicago
4:18
J Mitch Hopper
fishing at haigh
9:31
J Mitch Hopper
Diving Mermet Springs - 2016
12:08
J Mitch Hopper
Hellschreiber - What is that??
14:38
J Mitch Hopper
K9ZXO - Two Unusual Antennas
3:03
J Mitch Hopper
Gottlieb "Seashore" Pinball Machine - Back From the Dead!
2:50
J Mitch Hopper
Scuba diving Bonne Terre Mine trails #5 & #8.
6:11
J Mitch Hopper
Diving Bonne Terre Mine - Trails #3 and #5
5:24
J Mitch Hopper
Diving Haigh Quarry
3:37
J Mitch Hopper
Scuba Diving Composite
9:47
J Mitch Hopper
Diving at Lahina, Maui, Hawaii
4:43
J Mitch Hopper
Diving Bredina Springs, Illinois
1:49
J Mitch Hopper
Diving the USS Vandenberg
11:59
J Mitch Hopper
Bonne Terre Mine - Trails 9-10
12:50
J Mitch Hopper
WJJY-TV a Short History
4:40
J Mitch Hopper
Vector Graphic, Vector-1: Vintage S-100 Computer
3:54
J Mitch Hopper
Another Complete Waste of Time project
1:26
J Mitch Hopper
Biggest Waste of Time Project Winner - Telco Steppers
1:32
J Mitch Hopper
Scuba Diving Roatan, Grand Turk, Cozumel, and Grand Cayman
24:12
J Mitch Hopper
Diving Cozumel 2015
23:45
J Mitch Hopper
votrax sc 01 a
1:34
J Mitch Hopper
Diving Bonne Terre Mine - Trails 1 & 2
14:49
J Mitch Hopper
Plowing the Snow With Dispatch
1:29
J Mitch Hopper
Bringing in the New Millenium
9:57
J Mitch Hopper
A short trip into the Everglades
4:15
J Mitch Hopper
JT65-HF: A short, simple tutorial
10:12
J Mitch Hopper
Storm in the Atlantic
2:23
J Mitch Hopper
Fall colors of Rochester, Illinois
2:09
J Mitch Hopper
Machine Art Automation
2:24
J Mitch Hopper
Frankenboat II Updated
2:34
J Mitch Hopper
Diving san clemente Reef - Isle de Cozumel 2014
6:31
J Mitch Hopper
Rochester and the Lost Bridge Bike Trail at 200+mph
4:02
J Mitch Hopper
Springfield IL west side bike trail at 200+ mph
4:11
J Mitch Hopper
Springfield IL to Chatham by bicycle at 200+ mph
4:28