Circuit Technology Center
Rework. Repair. Reclaim.
Knowledge, tips, and techniques from the leaders in advanced circuit board and component, rework, repair, and reclamation.
February 11, 2026
Replacing Through-Hole Connectors: Mastering the Solder Fountain Method
Replacing Through-Hole Connectors: Mastering the Solder Fountain Method
Consider a typical scenario in which a project is already overdue, and you learn that a 150-pin connector needs to be replaced. Desoldering the connector one pin at a time using vacuum desoldering tools just won't cut it. Quickly removing and replacing a large multi-pin connector can seem daunting, but it really isn't. Here's how to do it. The solution, and likely the best method, is to reflow all the solder joints at ...
Feature Story
IPC-Aligned Jumper Wire Procedures for Electronic Assemblies
IPC-Aligned Jumper Wire Procedures for Electronic Assemblies
When circuit traces fail, or designs change, precision jumper wire installation restores electrical continuity without compromising reliability. Our guide outlines IPC-aligned best practices for selecting, routing, terminating, and bonding jumper wires to meet high-conformance standards. A practical resource for technicians performing PCB repair and modification in demanding electronic assemblies ...
Guide of the Month
Component Salvage: Keeping Production Moving When Supply Chains Stall
Component Salvage: Keeping Production Moving When Supply Chains Stall
When critical components are delayed or obsolete, production doesn’t have to stop. Our new step-by-step guides outline proven methods for safely reclaiming, conditioning, and requalifying salvaged components - helping manufacturers maintain reliability and keep builds moving despite ongoing supply challenges.

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The Most Essential Tool for Repair Techs
The Most Essential Tool for Repair Techs
Microscopes are essential tools in the rework and repair department. While there have been many applications for other types of manually operated vision systems, such as illuminated magnifiers and CCTV-based systems, the importance of microscopes has been driven by the ever-shrinking size of electronic components, connections, and assemblies ...
Feature Story
Cartoon of the Day
Cartoon
"Enough about my day... tell me about your day."
Copyright © Randy Glasbergen
Trivia
Approximately, how much did the first 5MB hard drive weigh? 20 pounds, 200 pounds, or 2000 pounds
See the answer below.
Quote of the Week
"Man will occasionally stumble over the truth, but usually manages to pick himself up, walk over or around it, and carry on."
Winston Churchill
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Circuit Technology Center
22 Parkridge Road
Haverhill, MA 01835 USA
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Contributors
Andy Price, Bob LePage, Brad Ferry, Brianna Anderson, Brooke Ferry, Bun Chhouy, Jessica Calabrese, Jim Rennick, Justin Camasso, Mark Bates, Matt Marchand, Matt Solt, Paul Pedroso, Peter Vigneau, Ronna LaBranche, Jeff Ferry

Since 1983 Circuit Technology Center and CircuitMedic have been recognized as the world's most innovative and reliable specialists in circuit board rework and repair services and products.

Trivia Answer
The first 5MB hard disk was shipped in 1956 and weighed over a ton (approximately 2,200 pounds) and was used in the IBM 305 RAMAC.