Daily Archives: January 23, 2009

He’s at it again! New Vacuum Tube Amplifier from Steve

Wow! Congratulations to our customer, Steve White, on his recent interview with the The Peterborough Examiner where Steve talked about his made-from-scratch vacuum tube amplifiers.

Steve sent some pictures of his latest project. He says it’s the biggest and most powerful amp that he’s made to date.

Here a new one. This is the biggest and most powerful amp I’ve made
yet! It’s a Push-Pull-Parallel 6L6 putting out a conservative 80 watts
per channel. I think I’ll keep this one for a while….
It has 8 of your 470 uf 400 volt electrolytic capacitors in it and one
of those small mylar coupling caps also.

Take a look for yourself…..

As always, great work, Steve.

7 Segment Displays

7 Segment LEDs or 7 segment displays are a type of electronic display devices used for displaying decimal numbers, in place of the more complicated dot matrix displays. 7 segment LEDs are used in a number of applications such as electronic meters, digital clocks and other such electronic devices.

7 Segment Display

7 Segment Display

As the name suggests, these electronic components are made up from 7 segments that are used for displaying each of the numerals from 0 to 9. The segments are arranged in a rectangle pattern with two vertical segments placed on each side, and a horizontal segment placed on top and bottom. In addition, another segment is placed bisecting the rectangle horizontally. This way, the figure obtained is of the number ‘8’. The segments are identified by lower case letters “a” to “g”, that begin with “a” on the top and going clockwise, with the center segment being “g”.

In some 7 segment LEDs, an additional segment is used to denote a decimal point and is referred to as DP. In some LEDs an extra triangle is also included to turn this decimal point in to a comma, which improves the readability of larger numbers.

Most of the 7 segment displays are slanted to make the numbers look like they were written in italics. This allows for one digit to be placed upside down along with another digit, such that the two decimal points appear like a colon between the digits. This arrangement of these electronic components is widely used in digital clock displays.