This short video shows the teardown of a small, cheap linear power supply that failed after a few minutes of being plugged in for the first time. A small pop and hiss was heard, followed by some excessive heat. Luckily I was there to unplug it before it turned really ugly! The video shows opening the supply up, and looking at what failed – a bad capacitor, bulged and high ESR. A video describing my ESR meter can be found here:
http://www.youtube.com/watch?v=bmYAgat-sOQ
CafePress Ham Radio Operator Mug 11 oz (325 ml) Ceramic Coffee Mug
$14.99 (as of September 23, 2023 16:12 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Dimensions: Our standard size 11 oz mug measures 3.75" tall x 3" in diameter Color Coordinate: Mix and match your mugs with your decor by choosing from the following interior and handle colors: Black, Pink, Navy, Blue, Red and White Superior Quality:... read more
Ham Radio & Coffee - Amateur Radio and Ham Radio Operator T-Shirt
$19.99 (as of September 23, 2023 19:28 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Funny Licensed Ham Radio Operator Retro Accessories with an Amateur Radio Design. Quote: My Coffee is strong but my connection is stronger. Lightweight, Classic fit, Double-needle sleeve and bottom hem
May the Morse Be With You Mug Shortwave Ham Radio Gift
$5.90 (as of September 23, 2023 15:25 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)May the Morse be with you! Amateur Radio operators who know their Morse Code...this is for you! Funny slogan topped by a telegraph key. INEXPENSIVE BUT IMPACTFUL - This is an "under $20" gift that they will LOVE, and every morning this coffee mug wil... read more
Ham Radio Mug, Ham Radio Gift Ideas, Gifts for Ham Radio Enthusiast, Funny Ham Radio Novelty Cup for Men and Women, Ham Radio Operator Coffee Mug
$23.95 (as of September 23, 2023 15:57 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Dishwasher and microwave safe. Printed on only the highest quality mugs. The print will never fade no matter how many times it is washed. High quality mug makes the perfect gift for everyone.
Saviola - Amateur Radio Operator Mug, I Tinker With Radios Ham Mug, Radio Mug, 11oz Novelty Coffee Mug/Cup
$14.96 (as of September 23, 2023 18:06 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)PRINTED ON BOTH SIDES - High quality ceramic. Treat yourself or give as a gift to someone special. DISHWASHER AND MICROWAVE SAFE. Resistant for house and restaurant use. Large, easy-grip handle. GREETING CARD - Each mug with a greeting card, if you w... read more
(2nd Gen) TIDRADIO H8 GMRS Handheld Radio with Bluetooth Programming Repeater Capable Dual Band Long Range Two Way Radios Walkie Talkies with 4PCS Batteries 771 Long Antenna & Earpiece- 2Pack Full Kit
16% Off2 X 2nd Gen TD-H8 GMRS Radio 2 X 6.1inch GMRS Antenna 2 X 15.12inch 771 GMRS Antenna 4 X 2500mAh Type-C Battery 2 X Earpiece 2 X USB Charger with cable, 2 X Back Clip,2 X User Manual 2 X Lanyard,2 X Screwdrivers( Not include Desktop Charger ) 💎【Upgra... read more
Portable Radio AM FM, Goodes Transistor Radio with Loud Speaker, Headphone Jack, 2AA Battery Operated Radio for Long Range Reception, Pocket Radio for Indoor, Outdoor and Emergency Use-Red
$11.97 (as of September 23, 2023 17:05 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)High Quality AM/FM Pocket Radio: DSP anti-jamming chip, effectively improve the radio sensitivity. Supports ultra-wide signals in both FM (87-108 MHz) and AM (520-1710 KHz) frequency bands. The 6-section 16.5-inch 360-degree rotatable ultra-long tele... read more
Radtel RT-590 Tri-Band Radio Air Band Receive Two-Way Radio 200CH 5 Watts NOAA Weather Alert Huge Features SCAN/VOX/AM/FM Radio/DTMF
$31.99 (as of September 23, 2023 11:08 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)-F1: 50-76MHz (RX only) FM: 76-108MHz( FM RADIO RX only) F2:108-135.9750MHz(AM Air Band RX only) F3: 136-173.975MHz (TX and RX both) F4: 174-349.975MHz ( Rx only) F5: 350-399.975MHz (RX only) F6: 400-469.975MHz (TX and RX both) F7: 470-600.000MHz( RX... read more
Case of 10, Retevis Walkie Talkies Earpiece with Mic 2 Pin Acoustic Tube Headset Compatible with Baofeng UV-5R Retevis H-777 RT21 RT22 Arcshell AR-5 Two Way Radio
$49.99 (as of September 23, 2023 11:05 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Kenwood 2 pin; not compatible with any Midland and Motorola walkie-talkies; compatible with Retevis H-777 RT21 RT22 RT68 RT18 RT19 RT27 RT-5R Baofeng UV-5R series BF-F8HP BF-888S Arcshell AR-5 Kenwood two way radio and more Hands free compatible with... read more
Midland - ER310, Emergency Crank Weather AM/FM Radio - Multiple Power Sources, SOS Emergency Flashlight, Ultrasonic Dog Whistle, & NOAA Weather Scan + Alert (Red/Black)
14% OffMULTIPLE POWER SOURCES - The ER310 features 3 sustainable power sources to recharge your radio: Solar Panel, Hand Crank, & Rechargeable 2600 mAh Battery. SOLAR PANEL - Simply recharge the internal lithium ion battery with direct sunlight. HAND CRANK ... read more
Walkie Talkies for Adults Long Range-Wishouse Handheld 2 Way Radios Rechargeable,Hiking Accessories Camping Gear Gift for Kids with Lamp,SOS Siren,NOAA Weather Alert,Easy to Use (Blue Orange 2 Pack)
37% OffLONG RANGE TRANSMISSION AND CRYSTL CLEAR SOUND — With upgraded custom helix gain antenna, super penetration, and lossless transmission technology. You can speak clearly and your kids can hear clearly within 1 mile in the yard or indoors. Longer range... read more
Retekess V115 Digital Radio AM FM, Portable Shortwave Radios, Rechargeable Radio Digital Tuner and Presets, Support Micro SD and AUX Record, Bass Speaker Black
11% OffAM FM SW radios; FM 87-108MHz; AM 520-1710KHz (9/10K); SW 4.75-21.85MHz; In radio mode; long press "MENU" to enter the setting page; find "FM band set"; select FM1/FM2; confirm and exit Recording radio; MIC recording and line in recording ; insert th... read more
Uniden Bearcat BC125AT Handheld Scanner, 500-Alpha-Tagged Channels, Close Call Technology, PC Programable, Aviation, Marine, Railroad, NASCAR, Racing, and Non-Digital Police/Fire/Public Safety.
20% OffLISTEN IN AND STAY INFORMED, this sophisticated scanner has 500 alpha-tagged channels in a convenient compact design with loads of features. Close Call RF capture technology instantly tunes to signals from nearby transmitters and the Do Not Disturb M... read more