Latest threads in Electronics Repairshow only best voted threads
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Clueless customers
I need to rant... Welcome to life in the slow lane. I got an email from a customer asking what type of contact cleaner to use on his laptop keyboard. I grab the phone, call, but too late. He had...
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14 years ago
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Schematic Software Schematic Software
Schematic Software Schematic Software Schematic Software Schematic Software SchematicPro, Custom Design Electrical Schematics Exstensive Parts Library, Import Export Schematics Save in many formats...
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14 years ago
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Need a sound recorder, what should I get?
Need a sound recorder for recording noise intrusion from an adjacent tenant. Using Sony ICD-SX700 did not achieve very good results. What should I use?
40
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14 years ago
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Update: Charging MP3 Player, Coby MP620-4G
Hi, Since my original post, I bought the Coby MP620-4G MP3 player. The OM says to use a "high power" USB port (computer). There is no other information in the OM or at their web site on a recommended...
8
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14 years ago
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B&K 3025 sweep Gen
Anyone out there got a manual for the B&K 3025 Sweep gen? I only need the calibration instructions. TIA, JC
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14 years ago
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Who says incandescent lamps are dead ?
bob
6
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14 years ago
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Backpack generator
bob
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14 years ago
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CRT TV SMPS
I continue to try and repair a CRT TV. The set's main SMPS is a discrete, self oscillating design. The set powers up for a few seconds and then shuts down; I think the Micon controller chip releases...
2
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14 years ago
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3.3V on a 3V device?
I'm wondering if running a 3-volt device (cheap digital camera) on 3.3 volts will hurt it. Yeah, I coulda gotten a 3-volt wall wart to run it, but it was expen$ive. The 3.3V regulator I got was a...
20
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14 years ago
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20 | |
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Which chip is this? 274 E16 L309
Hi, all. In a recently acquired pile of vintage junk (well not all junk, some good pieces!) I found a stick of 12 vintage IC's. They are all 14 pin DIP's marked "274 E16 L309". Does anyone know what...
2
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14 years ago
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2 | |
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Sony PVM-2030 video monitor won't switch to RGB
I've got a matched pair of Sony PVM-2030s here, and for the life of me I can't get either of them to display an RGB signal. A little background: On the back of these things is a 25 pin connector...
2
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14 years ago
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Horizontal Deflection
Doe anyone have a copy of the Horizontal Deflection article by David Sharples in "Electronics World", June 1996?. Thanks
2
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14 years ago
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2 | |
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Increasing the range/output power of a UHF video sender?
I have a UHF audio-video sender unit which I am attempting to use in a house with three floors, in a remote area. The aim being to send the signal from a VCR downstairs in order that a couple of TVs...
7
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14 years ago
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Chemical test for SnPb lead/ RoHS lead-free solder
A chemist gave me enough potassium chromate to have a go. Ground off a few mg from some sheet lead , dropped into some chromate solution and a cloudy yellowish deposit formed in the otherwise orange...
6
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14 years ago
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Yamaha EMX640 mixer amp
As far as I can tell this is the basic form to the power amp - what class is it? and in general terms the operational bounds of the biasing, a lot of diodes? seem to be involved. Equi-spaced font...
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14 years ago
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