... Yes, I suspect it is something like that. I just can't find any manufacturer that makes them with the marking "LB". (I've checked AVX, Bussmann, Littelfuse...
Richard Purdie
rpurdie@...
Jan 1, 2005 10:33 am
6593
I think it's a 100 Ohm 1% resistor marked per method EIA-96. I've seen this before and searched for it in the past. Please see the below reference: ...
Erhan Kaya
philipchip@...
Jan 1, 2005 9:02 pm
6594
Wait a sec! Sorry guys, I thought the 1A was on the component, apparently that's a marking on the board. Oh well, we can never over-communicate, as my old boss...
Erhan Kaya
philipchip@...
Jan 1, 2005 9:22 pm
6595
but 1A in hex is equal to 26 decimal....
Fred Townsend
fred@...
Jan 1, 2005 10:47 pm
6596
well, if you check the link below, "01" means 100 ohms, "A" means the multiplier is 1. That's where 100 ohms came from. but again, the subject component does...
Erhan Kaya
philipchip@...
Jan 1, 2005 11:42 pm
6597
I think this proves you can over communicate. Fred...
Fred Townsend
fred@...
Jan 2, 2005 12:32 am
6598
Ganswijk
ganswijk@...
Jan 15, 2005 8:18 am
6599
I have a fair understanding of how voltage type op amps like the 741 and scores of other similar differential op amps work in a circuit. They have an almost...
Martin McCormick
martin@...
Jan 16, 2005 1:48 pm
6600
You should get app note AN-72 from National Semiconductor. It's title is "the LM3900: A New Current-Differencing Quad of +/- Input Amplifiers". The first...
Dave Baldwin
dibsed@...
Jan 16, 2005 6:32 pm
6601
... Thanks. I will get that application note. What you tell me matches what I observed about that chip. I just hadn't synthesized it in to something...
Martin McCormick
martin@...
Jan 16, 2005 10:11 pm
6602
... No, it doesn't work that way. It actually makes a terrible preamp because of the noise of the required resistors on the inputs. -=-=-=-=-=-...
Dave Baldwin
dibsed@...
Jan 17, 2005 7:38 am
6603
Hello, does anyone have any info. on a Pt-100 (4-wire) interface circuit please? thanks regards, darren...
Darren Logan
Darrenl@...
Jan 17, 2005 9:32 am
6604
I have a CPU Controller card (8085 based, vintage ¬1987). The motor blew on the machine, power surges came and went, and now it won't communicate with the...
Declan Moriarty
tech.genius@...
Jan 25, 2005 6:37 pm
6605
... on ... MC1488 and MC1489 were the most common, TI versions were 75188/189. The driver required +/- 12 VDC in addition to +5. -- Author: Dave Baldwin INET:...
Dave Baldwin
dibsed@...
Jan 25, 2005 7:46 pm
6606
... Normally the boards would get + and - 12 V from a power supply. The standards are quite loose, so anything from say 9V to 15V goes, but 12V was usual. TI...
Jaap van Ganswijk
ganswijk@...
Jan 25, 2005 8:07 pm
6607
... A common technique was using the pair MC1488/MC1489. These are quad NAND type line drivers with level shifting. They do not need caps (no charge pump...
rahul
rahul@...
Jan 25, 2005 10:56 pm
6608
Hi, ... machine, power surges came and went, and now it won't communicate with the outside world. I think you have had some major currents flowing through...
Pieter Hoeben
info@...
Jan 25, 2005 11:36 pm
6609
... This looks good. I did get data on the MAX 1488 which is listed as an alternative for the MC1488/SN75188. So now all I have to do is find an alternative...
Declan Moriarty
tech.genius@...
Jan 26, 2005 10:36 am
6610
... I've spent time on a coal face, far to often, I have seen the Longwall machines running *while on fire*. Down-time on a production face loss is measured in...
Bob Paddock
bpaddock@...
Jan 26, 2005 11:12 am
6611
As I write, I finally found the 75152. It's a dual line receiver and I have a pinout in an old data book. Reverse engineering proved that this 75152 was not in...
Declan Moriarty
tech.genius@...
Jan 26, 2005 12:42 pm
6612
... Here I am back again. It didn't communicate. Examination revealed I had a 5V, +14.5V and nothing on the -12V or whatever. I found an orange glass thing...
Declan Moriarty
tech.genius@...
Jan 26, 2005 5:51 pm
6613
... How about checking your processor or UART lines, and connecting a MAX232 device to it? You probably only need Rx and Tx, maybe some RTS or CTS (lets hope...
Pieter Hoeben
info@...
Jan 26, 2005 9:52 pm
6614
Declan, Is it possible to send me more details about this 8085 board: It sounds much like a controller I have come across before (more moons ago than I care to...
Tony Wilson
collector241@...
Jan 27, 2005 7:56 am
6615
Tjfb
tjfb@...
Jan 27, 2005 8:16 am
6616
... http://homepage.ntlworld.ie/e-tronic.genius/dynapath.jpg It's by DYNAPATH, made in U.S.A. They call it an "Aulixiary Control 2B" As you see the picture,...
Declan Moriarty
tech.genius@...
Jan 27, 2005 10:07 am
6617
... Thanks for the help everybody, but reality intervened, and a new part is being ordered. Motor failure caused the damage, as I mentioned. So the machine had...
Declan Moriarty
tech.genius@...
Jan 27, 2005 3:02 pm
6618
Running memtest86 around here is giving me some strange figures, and this is really to ask why. For those who don't know it, memtest86 is an 8k boot file which...
Declan Moriarty
tech.genius@...
Jan 28, 2005 9:53 am
6619
... How many RAM-slots are attached? Probably the P3 is using two RAM banks in parallel but all other just access only to one bank at a time. (or is DDRRAM...
Matthias Weingart
chipdir@...
Jan 28, 2005 10:51 am
6620
... Just two Probably the P3 is using two RAM banks ... Actually, the P3 has only one bank - One dimm 64MB of pc100 ram. It says nothing about ddr. The Dimm...
Declan Moriarty
tech.genius@...
Jan 28, 2005 2:51 pm
6621
Declan wrote: ( my comments inside your text) ... ************************ is this output produced by 3 or by 5 diffferent computers? Here it suggests 5, but...
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