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Recent Electronics Articles
 Electronics: Lectrotech TO-50 Vectorscope
I don't know much about this scope, other than to say it was in fine shape when I first saw it last week at Goodwill (3/24/2012). It was still there today (3/31), so I took some pictures of it (some people were asking me for them)...
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 Electronics: Solder Is Easy - A One-Page Comic
On another list I am on, someone pointed out this handy little guide on how to solder, written in a one-page "comic book" format. I thought others might find it useful, though I have a few extra points to add.
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 Electronics: Solved: Lexmark/Optrex T612/T622 11K0627/11K0628 Display w/ Keypad and Control Panel
Great news! A reader by the handle of Enif, on the Eletro-Tech (new window) forums, apparently has solved not only the pinout, but also the I2C protocol/command set it uses to read the buttons and write to the display...
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 Electronics: Altair 8800 - CCS 6502 Board
A few months back I purchased this board to go with my collection of Altair 8800 items; I don't know much about this board, other than it is a bare (no components installed) 6502 processor board for the Altair 8800 system. It was made by CCS (California Computer Systems) in 1979.
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 Electronics: Lexmark/Optrex T612/T622 11K0627/11K0628 Display w/ Keypad and Control Panel
I recently purchased a couple of these control panels from a local surplus vendor (Apache Reclamation and Electronics), and I am trying to find out how to interface to them, preferably with my Arduino. From what I have been able to discover, they are control panels for two particular Lexmark laser printers, the T612 and the T622...
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 Electronics: Thank You, Energy Concepts, Inc!
A few weeks ago I purchased used (and in pretty rough condition) an Energy Concepts, Inc. (new window) model # 20500B Digital Solid-State Power Supply, from my favorite local electronics junkyard, Apache Reclamation and Electronics...
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NPN H-Bridge Schematic
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Lectrotech TO-50 Scope Back
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Lectrotech TO-50 Scope Front
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Acer NT-150 Rear
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Acer NT-150 Front
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El-Cheapo Bose Acoustimass Speaker
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Connector LCD 1
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Connector LCD 2
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Back Side LCD 2
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