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The most recent discussions

Motorola RCA 24718140 24712879


February 12, 2017, 5:17 pm

hello, From an 60's or 70's computer power supply I have those paired transistors but I am not able to find their figures. Three of them are Motorola's and the last one from RCA. Any Idea ? Wi... Read more »

Finding 100A TVS diode?


February 6, 2017, 8:25 pm

BZW6-26, 26v TVS unidirectional diode, through-hole, obsolete, n/a. The original datasheet says that the 600W peak pulse power is measured over 10/1000 uS waveform, but the 100A forward surge curr... Read more »

LA3607 likely fakes


December 27, 2016, 10:05 pm

I was just to order some LA3607 graphic equalizer chips from this seller (have other stuff in the cart from them) when realized that the chips in the photo are almost 100% fakes: there are traces... Read more »

Resistors needed locally


December 18, 2016, 2:04 am

I am in need for 10 3300uf 10vdc 105 degree resistors. I live in the Dallas/Ft Worth area and I would like to pick them up locally. I have tried Frys with no luck. Any ideas? Thanks in advance. D Read more »

Senisys data book - early 1990s vintage


December 18, 2016, 12:23 am

Anyone have one of these they want to part with or scan a few pages for me? Looking for data sheets on Senisys IR opto interrupter pairs S-1945 and S-1865. Looks like Senisys was taken over by Ho... Read more »

is Futurlec reliable? (wrt fake parts)


December 13, 2016, 11:34 pm

I was looking for a supplier of low noise jfets and found some good prices at Futurlec (.com). Never purchased from them but I recall adding their shop to the bookmarks after reading favorable co... Read more »

Led thermal design...


November 14, 2016, 4:10 am

This newsgroup seems to be deserted. Does anyone can help me to arrange a led array to reduce heat ? I can give further details if someone show up. Read more »

HDMI, DVI standard, adaptability?


November 8, 2016, 6:50 am

I see plenty of DVI-to-HDMI and HDIM-to-DVI adapters to be purchased. Are these standards equally convertible without losing fidelity (manufacturing quality issues aside)? Are such adapters simply... Read more »

SCSI.


November 1, 2016, 7:55 pm

Just won a few SCSI cards - even found drivers for some of them. Is SCSI still used? Thanks. Read more »

What form of words would I present a search engine to find out


September 2, 2016, 9:53 am

What form of words would I present a search engine to find out the technical info on lithium jump starters, how they work, what is the bank of the three pin TO packages in the positive line to ca... Read more »

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The best rated discussions

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5

resistor color code help


Howdy all I have a resistor on a front panel tv control that has a 5 band color code of brn-blu-red-gold-grn. This resistor is not burnt but measures 1.62K ohms. from the color code I would suspect... Read more »

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5

How solder to very fine enamelled woven wires in earphone lead?

  [ 2 3 ]

I have some Sony in-ear headphones. The lead to one earpiece has been cut through completely and I want to rejoin the two wires (which I will call 'conductors' to avoid confusion). The two 'conduc... Read more »

rating
5

capacitor ESL measurement


Hello, Is there anyone know how to measure the ESL of film capacitor? Will there be any reference standard? Thanks, GS Read more »

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5

Bell tone generator IC ?


Can any reader suggest a bell or chime tone generator IC that's presently available retail? In the past I've used parts like the SAB0600 - 8 pin DIP, hooks up directly to an 8 ohm loudspeaker, only r... Read more »

rating
5

9v battery terminal blanks?

  [ 2 3 ]

I want to keep some NiMH rechargeable 9v batteries in my tool bag (well, my meter bag, actually). I am currently running a double loop of electrical tape around the entire battery to insulate the... Read more »

rating
2.5

Stepper Motors and Hobby Motors


I have collected a huge amount of stepper motors and hobby motors from CD Roms, DVD players, toys, Audio equipment and just about any item that uses a motor. All motors are tested. If you are interes... Read more »