Any parts worth keeping from PC monitor?

[EC8010]

The monitors I used to look at were viewed in semi-darkness, so the tubes lasted well, in contrast (sorry) to computer monitors that face windows (oh no, not again, that really wasn't intentional).

I've just remembered. I started electronics by going to the tip outside the rental TV repair shop and cutting components out of (valve) tellys! Didn't know what I was doing, of course. Just went for the bigger brighter colours. (I was only 12.) The tellys were monochrome.

[planet10]

I went out and dissassembled one of my favorite monitors so i could take a picture of what is inside -- pic does not include some nice holey aluminum "cages". That i have 4 of these monitors makes some of the parts more useful (ie multiples of the same bits)

elcos only go up to 250, a nice looking hi-voltage film cap (big yellow one, 6.8 uF IIRC), loots of various heatsinks, plastic caps, big power resistors, some silicon (including regulators?), cermet pots, transformer/choke cores, an IEC input with filter & extra steel can for shielding, ferritte rings. The deflection coils (not shown) supply a whole bunch of magnet wire.

dave

[Sch3mat1c]

Date's gotta be 80s at least. They haven't used perforated sheilding for quite some time.

Tim

[karma]

only thing i save at the shop is power resisters and fuzes and the odd v ic

[planet10]

Originally posted by Sch3mat1c
Date's gotta be 80s at least. They haven't used perforated sheilding for quite some time.

1992, 93 Apple 21" RGB, made by Philips. Pulled these pieces of silicon out of one of the boards -- anyone recognize them?

dave

[karma]

somthing close to it i think

MJH-16006 450V @ 8A TRANSISTOR
Motorola MJH-16006, NPN, 125Watt, TO-218 case transistor, rated 450V BVceo, 6V BVeb, 8A Ic max., DC current Gain=5 @ Ic=8A & Vce=5.0V., For line operated switching supplies, inverters, motor controls, etc. [WT.] .01



http://www.mpja.com/allpict.asp?dept=113

i think its from a power supply

MJH 11022 (46102)
* Trans.250V 15A 150W

[karma]

http://www.onsemi.com/pub/Collateral/MJH11017-D.PDF

[planet10]

Originally posted by karma
i think its from a power supply

Given that much of a CRT monitor seems to be power supply there is a good chance. The particular board it came off didn't having any iron on it thou.

dave

[megajocke]

It is more likely from a deflection circuit, there aren't usually complementary transistors in the power supplies.

That's a big monitor... small ones usually don't have that much stuff inside

[DIY_Peter]

I began to search for recycled parts to build an amp (the p3a).

But it doesn't seem to be as easy as I expected it to be. I tried a few monitors and a vcr, but almost nothing I can use.

Many electrolitics, but almost always low voltage ones (16V).

When I look at prices in catalogues, it seems a waste of time to search for components, since caps and resistors are almost free. The very high quality ones aren't cheap, but you'll never find those in old equipement. unless you find a few broken Krell amps, but the chances of that happening are pretty low

Am I looking in the wrong places?