Latest threads in Electronics Repairshow only best voted threads

Subject Author Posted Replies
 
ART Tube MP Studio V3 Mic Instrument Preamp 12AX7A Valve Vacuum
I found this item listed in a eBag auction, listed as not-working missing parts etc. Chancing that the unit was repairable (how hard could it be? as they say on Top Gear) I bought said non-working...
 
LM7824CT replacement
I need to replace this TO220 regulator in a power supply I'm working on. The original is a "CT" suffix however looking through the books I see that there are several other versions of this part. The...
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Oscilloscope 'floating' measurements
Many advocate the use of an isolating transformer. The oscilloscope probe and ground are then used like multimeter leads. Tektronix and others maintain this is a dangerous practice and may result in...
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QAM tuner?
Well this is not about repair, but I don't know where else to ask it, and someone here will know. I still have an old CRT TV, which works fine, and I subscribe to Cox cable. Recently Cox has converted...
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TO3 mounting query
In typing this I thought of a reason for it but will continue for any one else's input. I've never seen it before but seems quite sensible now I have a likely treason. 5 amp rated TO3 mounted through...
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SMD top code graphics and other symbols
Other than hyphen is it only letters and numbers only for the type code? If some extended graphics symbol then is it date code or makers code or something other than type designation.? Faced with 4...
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wanted: new VC for Fisher CA273 stereo amplifier
Does anyone know where I might find a slider-type volume control potentiometer for a Fisher CA273 stereo amplifier? The markings are: Noble 74190 15AM-100K(ohms) X2 and it is tapped for audio contour...
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Types of lead-free solder
Still no industry standard? Which alloy do you like for repair of new boards?
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Normal to Have Warm Outlet to Portable Oven?
Hi, When I use a portable roaster / oven, the outlet that I plug the cord into gets pretty warm, as well as the wire at the last few inches. The cord has only 2 prongs, not 3. I think the roaster is...
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Panasonic Euro 4 Cogging - Please help
Hi I've got a Panasonic TX24DX1 tv with the Euro 4 chassis. There is slight cogging on the verticals, which I think may be caused by a fault (capacitor?) in the synch circuitry. Could anyone suggest...
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How to adjust Volume control range on TV monitor?
I use Direct TV satellite receiver. For the monitor connected via HDMI camble: Element Electreonics 40 inch LCD, ELGFT401 After following all the setup, several things make NO sense. What is...
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JFET identification
Hi all, Looking for a datasheet or any info on a FET used in a Keithley 2000 location Q105. The service manual lists it as: TRANS, N CHANNEL JFET, SNJ132199(SOT-23) It is marked with three digits...
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Nakamichi CD Player 3 - needs to heat before it's able to read disc
Hi, I have a Nakamichi CD Player 3, circa 1992, that is a terrific player, but requires to be warmed up for about 1.5 hours before it is able to read the disc; After this point, then it works fine. I...
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Aerial wifi antennae
Since HDTV came out, I basically get one different station in each room I move the TV to. Someone joked that the reason HDTV was invented was to force people off of aerial TV. Any anecdotes? I tried...
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Curious longlived battery
ca 1995 I bought some 7yr diver watches from Woolworth. WHen they doed I tried to replace the battery but the entire watch was sealed in silicone and could not be salvaged. I had tied one of those...
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