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This is an old Z80 based computer that I built many years ago when I was in high school. It's somewhat battered and in need of repairs - but since it's been floating around for 20+ years, I think it's doing ok!
It was designed by a small electronics company here in Melbourne, Australia called Talking Electronics
After seeing the crazy price SparkFun was charging for these, I had to get one.
I picked up a complete set - large screen, small screen and frame with backlights. They stick together easily.
I'm still dreading the prospect of somehow connecting up to them - the small screen especially has 0.4mm wide copper contracts, 33 of them! that's crazy. I've ordered some of the very thin wire used for modding games consoles (kylar insulated 30AWG stuff) and will attempt that later.
Even once they're connected, there's the massive issue of figuring out how to write data to them.
One easy part to get working was the backlight. This is a seperate connector with seven pins - one anode and six cathodes, one per LED. I connected wires up to each pin and put them through some heatshrink to 0.1" crimp headers and have connected them to 2 AA batteries temporerily. The backlight looks pretty snazzy, so I can't wait to get some actual display on these!
A bulk pack of 2500(50 values X 50pcs) 1% 1/4W resistors. They were from Hong Kong, Other than getting 2 sets of 33k and possibly missing another value in it's place. Their quality is good and they were cheap.
Electronics factory workers, Cikarang, Indonesia © ILO/Asrian Mirza
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 IGO License. To view a copy of this license, visit creativecommons.org/licenses/by-nc-nd/3.0/igo/deed.en_US.
This is hanging from a building on my way to work. I don't know what it is exactly. I can make out a transformer, a relais, some capacitors, and an IC.
This is the back panel.You can see the holes for the power outputs 6X2.
The big one is for the blower....
Один из наиболее массовых советских процессоров. Оказалось, что вопреки распространенному убеждению, он не является послойной копией Intel 8080/8080A (некоторые блоки похожи, но разводка и расположение контактных площадок существенно отличается). Самые тонкие линии — 6µm.
The front of the BalvenAmp. The Balvenie DoubleWood packaging has pictures of the two casks the whisky is aged in; the volume pot is coming out of the whisky cask, the gain pot is coming out of the sherry cask, and the guitar cord plugs into the Balvenie seal in the middle.
All soldering and wiring done.
Definitely not the best soldering I've ever done. Seems I need the practice…
The Digilent Electronics Explorer board (EE board) includes all of the test and measurement equipment needed to design, build, and test analog and digital circuits of all types. Built around a large solderless breadboard, the EE board includes a 4-channel mixed-signal USB oscilloscope, waveform generator, variable power supply, voltmeter, reference voltage generator, and thirty-two digital signals that can be configured as a logic analyzer, pattern generator, or any one of several static digital I/O devices. All of these instruments can be connected to circuits built on the solderless breadboards using simple jumper wires.
store.digilentinc.com/electronics-explorer-all-in-one-usb...
Electronics factory workers, Cikarang, Indonesia © ILO/Asrian Mirza
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 IGO License. To view a copy of this license, visit creativecommons.org/licenses/by-nc-nd/3.0/igo/deed.en_US.
Electronics cabinet. Receiver, lighting control relay, mac mini (audio and video server), and RF remote control system. Not visible is the ventilation system, near the top of the cabinet.
Two workers assemble a flat screen TV at an electronics factory in Cikarang, Indonesia © ILO/Asrian Mirza
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 IGO License. To view a copy of this license, visit creativecommons.org/licenses/by-nc-nd/3.0/igo/deed.en_US.
Before my local shop for electronic components, Labb Elektronik, shut down, they gave away free bags with random stuff. These pictures are the result of sorting the components in these bags.
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Standard hole mount resistors, mostly with odd values. I've got 10* this amount
Related blog post: gameboygenius.8bitcollective.com/wordpress/2008/11/02/ele...
An electronics room in the Solar Telescope Gallery at Kitt Peak National Observatory. www.noao.edu/kpno/
Homebrew 175MHz prescaler for frequency counter. This was based on Heathkit IB-102 design, with some modifications. The circuit boards were my only use of a photographic technigue to develop the resist patterns. The boards came out nice but it was too time consuming for a one-off application.