Through-hole assembly? Am I too old?
A customer asked me what is through-hole assembly is? I ask myself am I too old? Through-hole assembly is a
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Autotransformer / Variac
PCBs Components for Electronics Hobbyists
Let’s go back to basic, let’s talk about components on PCBs for beginner electronics hobbyists. PCBs are quite complicated. However,
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How To Replace TDGC2-2D Brushes
Introduction The Variable AC Transformer, TDGC2-2D, is one of our most popular items. Customers ask how often they should replace
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3 Popular Adjustable Voltage Transformers with Digital Displays
A few years ago, we wrote a blog post describing 10 uses for adjustable voltage transformers, one of which was
Read moreHow to make a shunt current resistor from Electroboom
How to make a shunt current resistor you ask? Before you learn how to make a shunt current resistor you
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Monitoring Variac Output with a Digital Panel Meter (DPM) [tutorial]
While most users are not concerned about the absolute readout of variac output voltage, a more accurate digital meter may
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Adding Temperature Control to an On/Off Crock-Pot
Today at Circuit Specialist HQ, our awesome accountant Anita brought in some delicious buffalo chicken cheese dip. After we all enjoyed
Read moreTen Uses for an Autotransformer, or Variac
1) Testing a repaired electronic device. After performing a repair on a piece of electronic equipment, it is best to
Read moreUsing a Variac to Power Up an Old Radio or Amplifier
It is best to monitor the AC current drawn by the unit as it is powered up, which indicates the
Read moreTransformers and Variable Autotransformers
Before we get into what a variable autotransformer is and how it works let’s take a look at regular transformers.
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