Anotherpower.com Forum
The Corner Tavern. => Classifieds => Topic started by: tomw on February 12, 2012, 10:57:56 am
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To any members in good standing:
I have a lot of odd stuff I have accumulated over the years of the electronic variety.
I am just uncovering some of this stuff for the first time in maybe decades.
Network hubs, WIFI gear, router, oscilloscopes a VA Linux rack server, satellite receivers, LNBs, computers, internal hard drives, cd/dvd drives, even an old zip drive,dead multimeters, 2 dead Macbooks a dead scanner, probably a couple dozen various wallwarts, both AC and DC output. And more.
Some of it junk some simply upgraded and shelved.
All will be offered as is, untested and no guarantee other than I will send it. Mostly for the shipping costs.
I will try to do an inventory in the next day or so. It is literally too much stuff to list separately.
So, if you have a junk "wish list" post in here and I will see what I have.
Almost everything will have value to some tinkerer.
I am trying to clear out decades of stashing things for "some day" but will never get to most of it.
Maybe toss it all on the floor and take a photo and post it but kind of busy just now.
I already have a few photos of said "junk" shown below.
I have 3 of these Panadac Power Supplies:
(http://pics.ww.com/d/434830-1/100_4991.JPG)
I think they would be nice bench supplies as they have a wide range of voltage taps. They came out of a circuit stuffing machine I salvaged some years ago.
This B&K 1405 'Scope. It has a trace but I never actually used it. Picked it up helping clear out an estate sale for my stepdaughters' dads place. Small, only 5" X 8" X 12":
This Scope is GONE..
(http://pics.ww.com/d/444992-1/100_5035.JPG)
This Decade / Substitution box which is great for dialing in capacitor or resistor values in a live circuit: Substitution Box is GONE..
(http://pics.ww.com/d/444996-1/100_5036.JPG)
And this Seco TV Flyback & Reactance Analyzer has an Eye tube:
(http://pics.ww.com/d/445002-1/100_5037.JPG)
If interested just PM me via the board messaging system and we can work out details in private.
Tom
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Stuff looking good, especially that O-Scope
I will be having a Mass GiveAway soon too
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The B&K O'scope is spoken for!
I have 2 others, however.
A Tectronix rack mount dual trace R647A and a Bell and Howell Schools branded one with no model #.
Tom
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I'll pm you also, but I'm interested in the substitution box. Those are always handy
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I'll pm you also, but I'm interested in the substitution box. Those are always handy
Substitution box is spoken for...
Tom
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.Tom
will either of the remaining scopes capable of reading battery waves.I wouuld like to find one that we can use in our
battery reclaiming projects. Dio you have pictures of what you have left?
Isaiah
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.Tom
will either of the remaining scopes capable of reading battery waves.I wouuld like to find one that we can use in our
battery reclaiming projects. Dio you have pictures of what you have left?
Isaiah
Sorry, no photos of anything right now. Life jumped on me with a bunch of priorities.
Not even sure what "battery waves" are? So no clue what is required to read them? If they are simply ripple going in to the battery any sensitive scope should be able to show them unless they are too fast for the scope to lock on to. Pretty certain these are all capable to many kilohertz and maybe up into the megahertz range.
One of these days I will get caught up (yeah, right ;D) and get at taking some photos of the rest of what I want to get rid of.
Tom
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Tom
Ok Im in no hurry here either and also have a lot of projects.
Im not sure on the frequency that I would need to watch the battery on a scope.
Maybe someone will answer?
Isaiah
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Im not sure on the frequency that I would need to watch the battery on a scope.
Maybe someone will answer?
If it's charging off the mains or a generator using just a transformer and diode pack, you'll be looking at 50/100Hz or 60/120Hz depending on the arrangement and country.
If it's a PWM charger you could be looking at anything up to 100KHz.
I can't imagine Tom being in possession of a CRO that wouldn't manage either of those frequency ranges.
As for sensitivity - you may need to put a DC blocking capacitor on the input if the CRO doesn't have enough offset on the vertical axis to see the signal you want, if it's a small signal on a large DC offset.
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Thank You Rossw,
My brother Bub73 has a scope just like the one Tom pictured so we will be experimenting when spring gets here.
We have a old Tungar that puts a lot of current in a battery and not a lot of amps. we have several other chargers we use in our reclaiming process and we use desulatators also and it would be interesting to see what goes on when a battery is in process of coming back.
We are probably going to put a add to trade scrap battery's for battery's that we may be able to bring back. mostly looking for Golf cart battery's.
Southern Michigan or Northern Indiana area's
Isaiah
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We have a old Tungar that puts a lot of current in a battery and not a lot of amps.
Can you translate that for me? I can't make head nor tail of what you might mean.
Amps are merely a measure of current. How can it be "a lot of current" but "not a lot of amps"?
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rossw
The old Tungar will put out around 50 volts at 6-8 amps. it will do around 10 amps short test.
Guess I should have said hi voltage at low amps.at any rate this helps bringing some of the run down batter's back.
And has been knowen to raise the top on a few!!!
Isaiah
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Back on topic:
This scanner does not work.
Umax Astra 1600U model.
The light comes on and it "scans" but the colors are all wrong. I do not have the cables or power supply or at least can't find them.
offered as is for parts. Weighs about 9# to ship. Available for shipping:
(http://pics.ww.com/d/445046-1/100_5041.JPG)
(http://pics.ww.com/d/445049-1/100_5042.JPG)
(http://pics.ww.com/d/445052-1/100_5043.JPG)
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Got this Bell & Howell Schools Scope:
(http://pics.ww.com/d/445064-1/100_5047.JPG)
No model number on it. Throws a trace but untested beyond that.
20# to ship. You pay shipping and its yours. No guarantee other than I will send it.
Tom
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Tom
That scanner might have a good motor for someone wanting to make a little mini mill to charge AA or something.
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The light in the scanner is neat for projects
It has a low voltage inverter for it and is neat for under-the-desk keyboard tray light, or other projects like a low voltage closet light if the bulb is protected well. Or if your into case modding computers or game systems, these would work well for that also.
I'm Not sure how long it would last but its a fun toy to have while it does.
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While on the subject of the scanner yes there are some goodies inside but the cover glass is the best bit especially if one wants to lap something nice and flat. Put the glass on some board with edging to prevent it from moving and it then becomes a poor mans flat edge for lapping parts.
Cheers Bryan
P.S. Sorry for the tangent Tom but those scanner glass covers are just so good as described above.
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While on the subject of the scanner yes there are some goodies inside but the cover glass is the best bit especially if one wants to lap something nice and flat. Put the glass on some board with edging to prevent it from moving and it then becomes a poor mans flat edge for lapping parts.
I've found most of them are too thin to be particularly good and flex a fair bit.
Your mileage may vary - but I got a thicker slab that I use for that purpose. Cost me next to nothing - and laminated too, for safety.
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Made one just like it (exactly?) into a laser spirograph once...
Remove the guts, plenty of room for bouncing laser beams off of round motorized mirrors.
Makes a cool science project for the kiddies ;)
Steve