W1RKW
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« on: January 19, 2008, 12:20:55 PM » |
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Anyone have any idea what this component is? I have a bunch of them but can't seem to find any reference to the number stamped on it. The number is 701708.
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Bob
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wa9yor
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« Reply #1 on: January 19, 2008, 02:48:00 PM » |
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probably not,but could be a 3 phase bridge rect
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KA1HNH
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« Reply #2 on: January 19, 2008, 02:54:37 PM » |
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Anyone have any idea what this component is?
A closer up picture would be better. Is it a balun? i.e. ferrite material? |
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KF1Z
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Are FETs supposed to glow like that?
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« Reply #3 on: January 19, 2008, 03:31:21 PM » |
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My first guess is 3 phase rectifier...
My second guess is a dual transistor, with a shared base or shared emitter....
You could slap a meter on them ( "diode check" ) and map it out.....
BTW... do we win a prize if we guess right? :-)
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W1RKW
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« Reply #4 on: January 19, 2008, 03:49:56 PM » |
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I got curious and busted one open. It looks like an old buzzard IC chip of some sort.
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Bob
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WA1GFZ
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« Reply #5 on: January 19, 2008, 03:55:19 PM » |
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looks like a thick film hybrid
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Pete, WA2CWA
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CQ CQ CONTEST
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« Reply #6 on: January 19, 2008, 04:42:06 PM » |
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It does look like those flat-pack encapsulated Fairchild ua703 or ua709 Op Amps from the late 60's/early 70's.
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Pete, WA2CWA - "A Cluttered Desk is a Sign of Genius"
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W1RKW
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« Reply #7 on: January 19, 2008, 04:58:27 PM » |
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Pete,
I've been thinking they were some sort of op-amp but was never sure. They came from an old college professor at my alma mater who was big into audio and collected all sorts of stuff like we hams and experimented. He was big into McIntosh audio gear and when I was in the audio business 25 or so years ago and I used to service his McIntosh gear. He was an interesting fellow. He passed away in the 80's and I continued to service the audio system for for his wife and she had all his old buzzardly junk. His wife asked me if I wanted any of it. So I took boxes of stuff and in that stuff were these mystery parts. I always thought they were some sort of op-amp but could never cross reference them.
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Bob
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W2JTD
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« Reply #8 on: January 19, 2008, 07:35:26 PM » |
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KA1HNH - Eye-witness accounts reported the deceased's last words as "Hold my beer. Now watch this" Some actually report the odor still lingers in their clothing. Excellent tag line. The odor still lingers. too funny. |
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Moe: Where were you born? Curly: Lake Winnipesaukee. Moe: How do you spell that? Curly: W-O... woof! Make it Lake Erie. I got an Uncle there.
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W3RSW
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Rick & "Roosevelt"
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« Reply #9 on: January 19, 2008, 07:49:21 PM » |
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Oh yeah,
recognized it instantly, ceramic hi temp matrix, et. al.
That thing went to the moon,
On the little LEM,
Hear it echo tonight,
Creme de la creme.
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RICK *W3RSW*
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Bill, KD0HG
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« Reply #10 on: January 19, 2008, 11:53:53 PM » |
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It's an Orgasmatron.
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k7yoo
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« Reply #11 on: January 20, 2008, 05:53:45 PM » |
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Could it be the rare "Spacistor" that they taught us about at Keesler AFB back in 68?? It was part of the basic electronics curriculum, but I was sure it never existed--until now!
Skip
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W1RKW
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« Reply #12 on: January 21, 2008, 04:22:36 PM » |
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My digital camera doesn't have the ability to get up close and personal with the dissected piece I was able to extract from a spare but upon looking at it very closely with reading glasses and a magnifying glass I can see what look like transistors and diodes by the very very fine wires that connect them to the substrate. The wires are nearly invisible. There are also traces that meet up with black areas which I'm assuming the black areas are resistors on the substrate. It's definitely some sort of early IC. What type, who knows.
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Bob
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WBear2GCR
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Brrrr- it's cold in the shack! Fire up the BIG RIG
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« Reply #13 on: January 21, 2008, 05:53:41 PM » |
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Yes it does.
It is called a MAGNIFYING GLASS!
Put it flush onto the lens of the camera, look at the LCD finder, move the camera to focus, push button!
_-_-bear
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WBear2GCR
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Brrrr- it's cold in the shack! Fire up the BIG RIG
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« Reply #14 on: January 21, 2008, 05:55:29 PM » |
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Ok,
so you've got to have ground, +,- power, output and inverting and non-inverting input.
not enough leads.
so, maybe it is a single ended opamp - +, gnd, output, inverting and non-inverting.
??
_-_-bear
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WA5VQM
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« Reply #15 on: January 21, 2008, 06:50:32 PM » |
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A knuter valve.
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W2JBL
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« Reply #16 on: January 21, 2008, 07:11:22 PM » |
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FLUX CAPACITOR
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WU2D
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CW is just a narrower version of AM
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« Reply #17 on: January 21, 2008, 08:06:42 PM » |
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That looks like a squegging throttle off the only surviving Kluge Interositor - don't throw it away because it is considered hazardous. In other words I think you have to pay extra at the recycling center for those.
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These are the good old days of AM
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KB2WIG
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« Reply #18 on: January 21, 2008, 08:13:03 PM » |
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What AM I ? ?
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What? Me worry?
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W1RKW
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« Reply #19 on: January 22, 2008, 03:45:19 PM » |
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Tried that but didn't have good results. I'll give it a shot again. Yes it does.
It is called a MAGNIFYING GLASS!
Put it flush onto the lens of the camera, look at the LCD finder, move the camera to focus, push button!
_-_-bear
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Bob
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