Latest threads in Electronics Repairshow only best voted threads
| Subject | Author | Posted | Replies | |
|---|---|---|---|---|
|
|
Re: Alps rotary encoder ID
On Sun, 05 May 2024 17:17:14 -0700, Jeff Liebermann wrote: Note that there are various types and styles of this rotary encoder: <>I can't determine which is the correct model because the shaft is...
3
|
2 days ago
|
3 | |
|
|
Switch-mode microwave HT boost in Paderno MW
Came across a switch-mode boost converter in a microwave HT supply today.~ normal magnetron. Output of the high frequency transformer looks to be a voltage doubler with 32x12mm film caps doing the job...
—
|
3 days ago
|
— | |
|
|
HP LaserJet P1606dn
Hi, A HP LaserJet P1606dn produced the output in the scan here. obvious leakage from the toner cartridge. Does anyone recognize the failure? Ideas? Thanks, ... P.
2
|
5 days ago
|
2 | |
|
|
Re: Altec Lansing ATP3 Speaker system transformer failed.
Check your typing. The company is Ten Pao. <>There is usually a part number on their transformers. Find the number and Conductivity? Plug it in and measure the AC voltage produced at the output of the...
1
|
1 week ago
|
1 | |
|
|
Signal Generator Source Impedance
Gentlemen, The service manual for this radio I'm re-aligning states to use an RF signal generator with a source impedance of 60 ohms. I have never heard of such a beast. I have a 50 ohm RF sig gen and...
8
|
1 week ago
|
8 | |
|
|
Can't get radio back in its case
Gentlemen, I had a really strong urge to smash a vintage radio into smithereens earlier today. I just couldn't get the damn thing to go back into its case. The chassis assembly is fouling on something...
5
|
1 week ago
|
5 | |
|
|
unknown connector
Can't get a name for this connector. It looks like a miniature version of an ancient signal socket, last seen on signal generators from the 50s. 'd thought it was something used on early accelerometer...
6
|
1 week ago
|
6 | |
|
|
3Com USR 56 k Sportster modems.
Hello again, I have two or three USR Sportster modems. Well made and would probably work for decades if need be. Seems somewhat wasteful to recycle. Is there a practical current use? Thanks, ... P.
4
|
1 week ago
|
4 | |
|
|
rec's for NiMH battery tester/charger?
I've got a big chunk of AA, AAA, and some C NiMh cells of varying ages... I'd love to be able to get a reading of how much charge they're still able to hold... My info on this is decades out of date,...
3
|
1 month ago
|
3 | |
|
|
Voltage halver.
A variable power adapter is required to drive a 6 V, 30 W incandescent bulb in a microscope. Similar to the 3-12 V 5 A adapter here. adapter providing 1.5-6 V output would be better but I haven't...
18
|
1 month ago
|
18 | |
|
|
Favourite Test Equipment
Hi all, I'm starting to get a bit fed up with having my test equipment blow up just when it's needed. This is the drawback with vintage gear; if it's not used frequently then it can go *bang* the next...
40
|
1 month ago
|
40 | |
|
|
Will apple ipad a1389 battery fit in an apple "ipad air 1"
Have a damaged ipad 1458 with a good battery and an ipad air 1475 1st gen needing one. Before I disassemble, anyone know if it fits? Thanks
2
|
1 month ago
|
2 | |
|
|
500 mi tv antena for radio
Can a 500 mile TV antenna work for radio? TV is digital and the signals are separated, but how will you separate radio stations that have the same frequency? Plus radio antennae have one contact but...
9
|
1 month ago
|
9 | |
|
|
RGB Mod in Panasonic CTP-2780SF
Anyone ever do one of these to a CRT? Seems like the set has this jungle IC which will be where the RGB lines for the OSD are needed for the mod: not sure what the line would be that tells the chip to...
—
|
1 month ago
|
— | |
|
|
Mitigating Signal Reflection
I'm new to electronics and I'm hitting an issue beyond my skill set. I should start by saying I'm not 100% sure signal reflection is the issue, but it's my best guess. I have a 3.3V clock signal that...
4
|
1 month ago
|
4 |