A small gold mine in the trash! - Page 2 - Electronic Circuits Projects Diagrams Free

HiTech · 14th July 2006, 07:35 PM

I have a recently built lab in my basement. I finished a small area set aside as a storage room. It has shelves, benches, heat/cooling/dehumidfier and plenty of storage for components as well as whole equipment. I've worked in shops/lab most of my life but never had a nice lab at home. So I buckled down last winter, designed and built one from scratch, including the storage shelves, benches, and cabinets. I have is acoustically insulated to the point that I can hear electron flow inside a transistor!!

Blasty · 15th July 2006, 05:20 AM

Dean, Thanks for the tip!

So far I've just done the quick and easy work and pulled socketed IC's from the boards. I haven't needed any soldered ones yet except for some TO-220 regulators. Eventually I may pull off the IC sockets, as they're all very nice gold plated machine pin types. We have a desoldering pump at work that is great for pulling off parts with many pins.

I've also been cutting off the gold card edges and saving them. a few pounds of these sell pretty well on eBay to people who use them for gold recovery.

dknguyen · 15th July 2006, 05:26 AM

Quote:

Originally Posted by HiTech

I have is acoustically insulated to the point that I can hear electron flow inside a transistor!!

Doesn't that drive you nuts after a while?

AllVol · 16th July 2006, 06:30 AM

I don't think he heard you.

Someone Electro · 16th July 2006, 10:16 AM

I do the oposite then soundprofing it.I put in a radio so there is no silence.I dont like being in total silence for extended periods.

16th July 2006, 11:53 AM

Really old and I mean early 60's IC and how many 60s ICs were there anyway, had a lot of gold in them. While browsing thru a telegraph exchange that was being bulldozed I came upon across some circuit boards with ancient ICs on board, the top of the ICs was a white clip-on cover and when removed you could see the gold wires to the pins each with a different coloured varnish. The main part of the IC was in a ceramic type encapsulation.
the pin numbering was also differentit went
top
1 2
3 4
5 6

really, really old I donated them to the Communications museum

HiTech · 17th July 2006, 01:05 PM

Dean,
you bring up a good point and although I didn't mention it, I remove just the more common use ICs while leaving the boards in a box. Yes, ESD can be a problem and they are better left mounted to the board, also making it easier to quickly scan a board for a needed chip, versus rifling thru a parts drawer of them.

Someone Electro,
The reasoning behind having a quiet room is to better hear horiz. oscillators in a television to confirm they are working, as well as listening for other low level mechanical sounds in problem equipment. For the most part, a television or stereo is running off side for entertainment. And that can be a real distraction just like it was last night as hot solder dripped off the pencil onto my leg ... nice blister!!

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14th July 2006, 07:35 PM	(permalink)
HiTech	I have a recently built lab in my basement. I finished a small area set aside as a storage room. It has shelves, benches, heat/cooling/dehumidfier and plenty of storage for components as well as whole equipment. I've worked in shops/lab most of my life but never had a nice lab at home. So I buckled down last winter, designed and built one from scratch, including the storage shelves, benches, and cabinets. I have is acoustically insulated to the point that I can hear electron flow inside a transistor!! __________________ Don't make me reach through this monitor to slap you a good one!

15th July 2006, 05:20 AM	(permalink)
Blasty	Dean, Thanks for the tip! So far I've just done the quick and easy work and pulled socketed IC's from the boards. I haven't needed any soldered ones yet except for some TO-220 regulators. Eventually I may pull off the IC sockets, as they're all very nice gold plated machine pin types. We have a desoldering pump at work that is great for pulling off parts with many pins. I've also been cutting off the gold card edges and saving them. a few pounds of these sell pretty well on eBay to people who use them for gold recovery.

16th July 2006, 06:30 AM	(permalink)
AllVol	I don't think he heard you. __________________ All those who believe in psycho kinesis, raise my hand.

16th July 2006, 10:16 AM	(permalink)
Someone Electro	I do the oposite then soundprofing it.I put in a radio so there is no silence.I dont like being in total silence for extended periods. __________________ Il give you shocking experience.

16th July 2006, 11:53 AM	(permalink)
Paul Obrien	Really old and I mean early 60's IC and how many 60s ICs were there anyway, had a lot of gold in them. While browsing thru a telegraph exchange that was being bulldozed I came upon across some circuit boards with ancient ICs on board, the top of the ICs was a white clip-on cover and when removed you could see the gold wires to the pins each with a different coloured varnish. The main part of the IC was in a ceramic type encapsulation. the pin numbering was also differentit went top 1 2 3 4 5 6 really, really old I donated them to the Communications museum

17th July 2006, 01:05 PM	(permalink)
HiTech	Dean, you bring up a good point and although I didn't mention it, I remove just the more common use ICs while leaving the boards in a box. Yes, ESD can be a problem and they are better left mounted to the board, also making it easier to quickly scan a board for a needed chip, versus rifling thru a parts drawer of them. Someone Electro, The reasoning behind having a quiet room is to better hear horiz. oscillators in a television to confirm they are working, as well as listening for other low level mechanical sounds in problem equipment. For the most part, a television or stereo is running off side for entertainment. And that can be a real distraction just like it was last night as hot solder dripped off the pencil onto my leg ... nice blister!! __________________ Don't make me reach through this monitor to slap you a good one!