Latest threads in Electronics Repairshow only best voted threads
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SMPS inductor clone
OK, so I want to clone this inductor, L9. It is wound on a ETD29 former, I have counted the turns and the wire gauge. What I don't know is the core material. There are several types available. (The...
8
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7 years ago
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8 | |
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Mark Bass amps
I assume this will become a generic problem as they age. A dropper in the fan supply line is R67 of value 150R, barely 2W size perhaps 1.5W. On the schematic it is marked as 150R 5W. The relay dropper...
7
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7 years ago
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7 | |
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Black mica?
Anyone ever seen this before? Basically clear mica but with black smokey looking intrusions, something geological in the way of tar/bitumen leeching into the cleaving planes?
7
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7 years ago
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7 | |
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Powering up old stuff that's not been run for several years
I don't think any of us here would take some semi-ancient item of electronic equipment of unknown provenance and just plug it in the mains socket and switch on. We know from experience or elsewhere...
8
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7 years ago
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8 | |
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Inexpensive replacement for these garage flourescent lights?
What do you think, honestly, of this idea? Costco has supposedly "universal" LED replacement tubes: The price is currently $7.70 per tube: So I bought 16 of these reputedly "universal" LED tubes: At...
48
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7 years ago
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48 | |
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Anchor Ensign Podium With Mic and Amp
I am trying to help a friend of mine fix the electronic podium for his chur ch. It worked fine for years til they brought it to someone (not me) to cha nge the rechargeable battery. He changed the...
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7 years ago
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BS 1363 plug on a two conductor cord of a lamp.
Hi, Does installation of a BS 1363 plug, with a ground pin, on a two conductor cord of a table lamp, violate wiring regulations? I don't imagine an unconnected ground pin posing a hazard. Does a lamp...
12
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7 years ago
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12 | |
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Roomba lawn mower
Roomba now also has a mop. How long until they come out with a lawn mower? Yes, I've seen the video of a Roomba finding and splattering dog poop. Never had a Roomba but I'd'a hoped they had some way...
23
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7 years ago
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23 | |
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Tree pruning laser?
They want ten grand to chop the tops of three pines, so I got to (uh oh) thinking what if I could put a laser on a drone. Then I realised the power is too much, so you would need a cable. The power...
14
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7 years ago
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14 | |
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Cambridge A5 amp crowbarring?
Headscratching time. On first receipt tried the amp out as owner had been using 1 channel only , after having blown the other by shorting it. Both LV ac fuses ok but one SAP15 p-type blown. Had to...
5
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7 years ago
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5 | |
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ML-1610 lost its way
After a period of non-use I pulled my Samsung ML-1610 back into service, an d put in a new cartridge (since then I've put in yet another in the thought s that the problem lies there) and fired her up....
2
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7 years ago
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How long do LED shop/ceiling lights really last at full output anyway?
How long do LED shop/ceiling lights really last at full output anyway? In another thread, the topic came up that LED lights may not last as long nor as bright as claimed on the package: Lights of...
38
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7 years ago
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38 | |
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washing machine pump motor
There was a discussion a LONG time ago about a washing machine pump motor. I have a Kenmore Oasis washing machine that I've had to do some repairs on. The drain pump has gotten clogged a few times...
8
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7 years ago
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8 | |
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Sanken SAP15 , 5 pin Darlingtons
With the built in temp comp diodes, 1 silicon in the N type and 5 Schotky in the P and mirror-reversed pinning . Owner put a short across one speaker line, magic smoke but other channel is normal....
4
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7 years ago
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Help Google search Oscilloscope
Would like to hook up my newish Rigol 4 channel scope to analyze ignition in my 1948 Pontiac. Need hookup and safety information. Entering "lab scope ignition testing" etc. leads to hundreds of links...
22
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7 years ago
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22 |