Keyboard Shortcuts
ctrl + shift + ? :
Show all keyboard shortcuts
ctrl + g :
Navigate to a group
ctrl + shift + f :
Find
ctrl + / :
Quick actions
esc to dismiss
Likes
Search
Re: Recycling monitors
|
Hans Summers
Ok, last off topic post from me on this subject... I completed the
toggle quoted message
Show quoted text
dismantling of the monitor and posted the pictures on my web page at . Just look at this long list of all the nice components I found inside! There's enough here to build a very nice CW transceiver and other useful stuff! 73 Hans G0UPL Integrated Circuits: LM324 Quad Operational Amplifier (SMD) KA358 Dual operational Amplifier 74HCF4011 Quad 2-input NAND gate (SMD) 74HCT02 Quad 2-input NOR gate (SMD) 74HC86 Quad 2-input XOR gate (SMD) 74HCT74 Dual D-type Flip Flop (SMD) 74HCF4053 Tripple 2-channel multiplexer (SMD) UC3842 Current mode PWM controller TDA9105 Deflection processor LM1283 140MHz RGB Video Amplifier MAS9181 Eight discrete 8-bit Digital-Analogue converters in one IC, I2C programmed CVA4401 Triple 400MHz buffer CR6727 Triple hybrid video amplifier LM2940 12V 1A Voltage Regulator 7805 12V 1A Voltage Regulator Several other custom IC's which I couldn't find datasheets for on the internet Other semiconductors: SLA5038 5-MOSFET array Several LARGE rectifier diodes Several zener diodes Numerous small signal diodes, look like 1N4148, both SMD and normal Numerous small transistors, both SMD and normal Several IRF-series TO220 MOSFET's, e.g. IRF620 Several BD-series bipolar power transistors e.g. BD135 5mm green LED Other components: Numerous resistors, both SMD and normal, various power ratings Numerous capacitors, both SMD and normal, including many useful electrolytics Notable LARGE 330uF 385V smoothing capacitor in the mains rectifier Two small neon bulbs, used as spark gaps 8MHz quartz crystal, HC49 case Numerous inductors and transformers, but no toroids 12V Relay, dual pole changeover Numerous preset potentiometers Five small push buttons Approx 10 metres of shielded cable, i.e. 5 shielded conductors in the cable -----Original Message-----
From: Hans Summers Sent: 08 February 2005 17:57 To: 'BITX20@...' Subject: RE: Recycling monitors P.S. For those who don't get attached pictures, they're also in the group photos under G0UPL/recycle 73 Hans -----Original Message----- From: Hans Summers Sent: 08 February 2005 17:56 To: 'BITX20@...' Subject: OT: Recycling monitors Latest news, following Paolo's influence: I have commenced dismantling of the previously mentioned 19-inch DELL monitor, which the IT department failed to remove from the cupboard next to my desk here in the office! Inside I found a secondary RF shielded box made from thin sheet metal. Very difficult to remove. Attached are the pictures so far. You can see that I managed to open 1 side of the RF shield box and see the back of the PCB. Still haven't glimpsed the front of the PCB. I will make a page on my site about this, following Paulo's example, and list the useful things I find inside! Later, I will add links to that pages, to other projects on my website, to show where I used the parts. Recycling is fun! I've been using old recycled parts for all of my electronics hobby since I was 5 or 6 years old. Now it's time to document this side of things! 73 for now Hans G0UPL -----Original Message----- From: Paolo Cravero as2594 [mailto:pcravero@...] Sent: 03 February 2005 17:52 To: BITX20@... Subject: Re: [BITX20] Stability? Hans Summers wrote: IT department still haven't taken it, I might be found harvestingBeen there! :-) And written about it. See Also featured: VCR, CD-ROM and laptop. One day I will add TV and floppy-disk drives as well. Paolo IK1ZYW PS: when I dismantled that monitor I was not yet into winding coils, so I just kept the inductors, which I am now using as wire source. PPS: hot-air guns are a great tool for part scrounging! (but you MUST do it in open-air and dry WX ;-) ) Yahoo! Groups Links |
to navigate to use esc to dismiss