Monthly Archives: October 2008

What is a heatsink?

When current flows through a resistor, part of the electrical energy is converted into heat that gets dissipated into the surroundings. If the heat generated is not quickly removed, it can permanently damage the electronic circuit. Heatsinks are devices that are capable of removing the heat from electronic devices and speedily dissipate it into surroundings. Heatsinks can be passive or active devices. Passive heat sinks consist of fins made generally of aluminum that provide a large Read more [...]

Custom Tube Amp in Time for Halloween

Steve W. from Peterborough, Ontario, Canada sent me some new pictures of his latest projects. He built this particular amp for himself. It's a 40 Watt per channel 807 that used 8 of our 470uF 400V Electrolytic Capacitors . The finish is blue perl clear coat - that finish is perfection! We'll be posting more of Steve's custom tube amps over the next couple of days. As always - great job, Steve! Read more [...]

Op Amps – Then and Now

Op Amps – Then and Now Op amp is the commonly used name for operational amplifiers, which are widely used electronic components. Op amps are often seen on many surface equipment designs and logging tools. The name ‘operational amplifier’ comes from the use of such high gain amps in performing mathematical operations for analog computer operations and is said to have been coined in 1947. A lot of study was done in the field and the initial operational amplifiers, based on Read more [...]

Tact Switch – SKPFABA010

We've been selling a lot of this one particular switch - it's called a long travel tact switch; manufactured by ALPS. Here are some of the features of this switch: -- Dimensions: 8mm x 8mm -- Suitable for automotive applications due to its high operational force -- Malfunctions are prevented due to it having a longer travel than most conventional tact switches -- Easily mounted on a PC board with snap in leads -- Some of the output terminals can be used as jumper leads which makes the circuit Read more [...]

Desoldering – Why is it Necessary and How is it Done?

Soldered joints, if improperly done, may need to be ‘desoldered’ or the solder removed in order to resolder them. A poorly soldered joint can result in failure of the electrical circuit over a period of time. This can happen for a number of reasons. Low quality solder or failure to properly clean the surface before soldering or even lack of proper technique and corrosion of the joint due to leftover flux, movement (shake) of the joint before the solder has cooled may all cause a poor Read more [...]