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Posts Made By:
petehall347
Forum:
General Electronics Technical Discussion
Today, 10:14 AM
Replies:
4
Old analog Power Supply needs your advice
Views:
40
Posted By
petehall347
Re: Old analog Power Supply needs your advice
2 bridge ones go to the missing transformer
Forum:
General Electronics Technical Discussion
Yesterday, 03:41 AM
Replies:
31
Help me with capacitors replacement
Views:
350
Posted By
petehall347
Re: Help me with capacitors replacement
just what i was thinking .
Forum:
General Electronics Technical Discussion
08-13-2022, 07:05 PM
Replies:
31
Help me with capacitors replacement
Views:
350
Posted By
petehall347
Re: Help me with capacitors replacement
from what i can find about these its happened at least 3 times . its for a cheap welding machine so corners may have been cut building it .
Forum:
General Capacitor Questions & Issues
08-13-2022, 04:05 PM
Replies:
15
Indentifying an old exploded cap.
Views:
289
Posted By
petehall347
Re: Indentifying an old exploded cap.
there are 120 ohm on that ebay but i didn't look at the temperature curve .....being as yours seems to be working you could figure it out with a thermometer and heat source .
Forum:
General Electronics Technical Discussion
08-13-2022, 03:41 AM
Replies:
31
Help me with capacitors replacement
Views:
350
Posted By
petehall347
Re: Help me with capacitors replacement
please show pictures after you have cleaned the pcb
Forum:
General Electronics Technical Discussion
08-12-2022, 06:03 PM
Replies:
31
Help me with capacitors replacement
Views:
350
Posted By
petehall347
Re: Help me with capacitors replacement
it was a rectifier ..
looks like it needs redesigning to me . its that or needs quality parts .. bridge rectifiers arent fuses or even a good substitute , resistors however ......
Forum:
General Electronics Technical Discussion
08-12-2022, 05:36 PM
Replies:
31
Help me with capacitors replacement
Views:
350
Posted By
petehall347
Re: Help me with capacitors replacement
https://preview.redd.it/hac4ns2tevv81.jpg?width=2532&format=pjpg&auto=webp&9011d083this might help a bit
...
Forum:
General Capacitor Questions & Issues
08-10-2022, 01:58 AM
Replies:
15
Indentifying an old exploded cap.
Views:
289
Posted By
petehall347
Re: Indentifying an old exploded cap.
looks like a thermistor .
Forum:
Troubleshooting TVs and Video Sources
08-09-2022, 09:44 AM
Replies:
10
toshiba 50L4333D TV with a LG 32L4300 board low brightness
Views:
208
Posted By
petehall347
Re: toshiba 50L4333D TV with a LG 32L4300 board low brightness
i don't know .. maybe find the manual and read it
Forum:
Troubleshooting TVs and Video Sources
08-09-2022, 01:46 AM
Replies:
10
toshiba 50L4333D TV with a LG 32L4300 board low brightness
Views:
208
Posted By
petehall347
Re: toshiba 50L4333D TV with a LG 32L4300 board low brightness
it may be in hotel mode .
Forum:
Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
08-08-2022, 02:37 AM
Replies:
5
MSI RX6900XT - i fcked up - shorted TOUT with BOOT on
Views:
151
Posted By
petehall347
Re: MSI RX6900XT - i fcked up - shorted TOUT with BOOT on
looks like they are on backorder
Forum:
Troubleshooting Power Supplies and Power Supply Design
08-06-2022, 03:59 PM
Replies:
17
ATX PSU SL-500 Short circuit can't find where? Transformer?
Views:
515
Posted By
petehall347
Re: ATX PSU SL-500 Short circuit can't find where? Transformer?
throw the safety light bulb away and keep blowing everything up first try .
:poof:
Forum:
General Electronics Technical Discussion
08-05-2022, 02:55 PM
Replies:
63
Another water pump automation project (suggestions ?)
Views:
1,327
Posted By
petehall347
Re: Another water pump automation project (suggestions ?)
is it not possible to add a balancing pipe between the tanks ? then it should only need 1 pump and float .
Forum:
General Electronics Technical Discussion
08-05-2022, 02:53 PM
Replies:
63
Another water pump automation project (suggestions ?)
Views:
1,327
Posted By
petehall347
Re: Another water pump automation project (suggestions ?)
look possibly a cubic metre .so 1000 litres
Forum:
General Electronics Technical Discussion
08-01-2022, 04:14 PM
Replies:
4
Battery Charger - Transformer advice
Views:
86
Posted By
petehall347
Re: Battery Charger - Transformer advice
yes the buzzing is the laminations . i have in the past sprayed lacquer onto the laminations so it runs down into them .
Forum:
General Electronics Technical Discussion
08-01-2022, 01:46 PM
Replies:
4
Battery Charger - Transformer advice
Views:
86
Posted By
petehall347
Re: Battery Charger - Transformer advice
firstly tighten the screws up .
Forum:
Troubleshooting Printers, Copiers, Scanners and other Imaging & Printing Devices
07-30-2022, 05:51 PM
Replies:
3
service tools for Canon mx 495
Views:
166
Posted By
petehall347
Re: service tools for Canon mx 495
https://www.youtube.com/watch?v=9SrBzabJj00
Forum:
General Capacitor Questions & Issues
07-28-2022, 09:45 AM
Replies:
13
Any good references for variable capacitor design?
Views:
263
Posted By
petehall347
Re: Any good references for variable capacitor design?
i remember adding different capacitors to the earth and the antenna for selectivity and sensitivity .
Forum:
General Electronics Technical Discussion
07-28-2022, 09:42 AM
Replies:
23
Samsung battery in Xiaomi
Views:
428
Posted By
petehall347
Re: Samsung battery in Xiaomi
think it must be a mi xiaomi mi 9
Forum:
Troubleshooting TVs and Video Sources
07-28-2022, 04:45 AM
Replies:
16
Samsung UN55ES7003 has blown fuse on TCON and short to ground.
Views:
487
Posted By
petehall347
Re: Samsung UN55ES7003 has blown fuse on TCON and short to ground.
http://j5d2v7d7.stackpathcdn.com/wp-content/uploads/2016/08/4435-datasheet-pinout.gif
Forum:
General Electronics Technical Discussion
07-26-2022, 04:15 AM
Replies:
5
Help with IC identification please
Views:
170
Posted By
petehall347
Re: Help with IC identification please
can you find the lump that blew off ?
Forum:
General Capacitor Questions & Issues
07-24-2022, 06:58 PM
Replies:
13
Any good references for variable capacitor design?
Views:
263
Posted By
petehall347
Re: Any good references for variable capacitor design?
wish i still had the book i used all them years ago .. all simple stuff really . i used to try different windings around a ferrite core and capacitors connected to an external antenna for selectivity...
Forum:
Troubleshooting TVs and Video Sources
07-24-2022, 03:45 PM
Replies:
2
Samsung TV UN55KS8000 dead - bad diode
Views:
238
Posted By
petehall347
Re: Samsung TV UN55KS8000 dead - bad diode
if diodes are working parallel i change all of them and match vf . they really need to work together .. silly idea to run parallel to up the current really .be better with single bigger diodes . well...
Forum:
General Capacitor Questions & Issues
07-24-2022, 11:21 AM
Replies:
13
Any good references for variable capacitor design?
Views:
263
Posted By
petehall347
Re: Any good references for variable capacitor design?
when i was building crystal sets i knew nothing about pf values i just threw them together and they worked fine . i did however know the differences of am and fm tuners though .
Forum:
General Capacitor Questions & Issues
07-24-2022, 07:59 AM
Replies:
13
Any good references for variable capacitor design?
Views:
263
Posted By
petehall347
Re: Any good references for variable capacitor design?
try searching tuning capacitor on ebay and google .. i see an an abundance of them
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