? Too Much Capacitance Is BAD - Measuring Inrush Current - Improving Inrush Performance - No.883
Too Much Capacitance Is BAD - Measuring Inrush Current - Improving Inrush Performance
0:00 - Intro. 3:09 - Measuring inrush current with a current probe from Micsig. 5:15 - Testing inrush current after installing a inrush limiting resistor. 11:05 - Selecting capacitance to control inrush current. 14:05 - Inrush current probe setup. 14:50 - Other ways of reducing inrush current. 17:11 - Patreon Supporters: https://defs.link/?u=fcb3a1
Part 2 of the repair on the Valhalla 2703 AC Voltage Calibrator.
I replace the very noisy 115V AC Fan (reducing the noise level by over 10dB), and then begin to recap the PCB's.
My 3D Printed Replacement Parts: https://defs.link/?u=981bf1
This was part of a series, see the playlist for the entire series here: https://www.youtube.com/watch?v=zc068_yG-ts&index=3&list=PL2z3V9RkHQE1RIVzzrBfP7L1PLWJcMwXg&t=1044s
Remember to subscribe and click the Bell Icon to get notifications!
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Test equipment appeal: https://www.youtube.com/watch?v=cDFThnxqDWU
My test equipment replacement part designs on Thingiverse: https://defs.link/?u=0347b1
My website (well, one of them): http://www.TheDefpom.com #ifixstuff #thedefpom #electronicsrepair
TheDefpom Merchandise: https://teespring.com/stores/thedefpom
==========================================
Some Of My Electronics Tools (video and purchase links)
==========================================
Boonton
------
4220.
8210: https://defs.link/?u=e1eddc
Fluke
------
8842A:
45: https://defs.link/?u=eac51d
343A: https://defs.link/?u=13c93d
5200A: https://defs.link/?u=a43c99
540B: https://defs.link/?u=0c6bd9
893A.
A90.
HP/Agilent/Keysight
------
4261A: https://defs.link/?u=07ed95
5005A.
5342A 18GHz: https://defs.link/?u=5f7513
6181B: https://defs.link/?u=b12aef
8012B: https://defs.link/?u=ca5764
8648B: https://defs.link/?u=da52a3
8901B: https://defs.link/?u=535835
DSOX1102G: https://defs.link/?u=a68d39 https://defs.link/?u=12d498
E3646A: https://defs.link/?u=128f4a
Marconi
------
2022D.
2955.
TF2103: https://defs.link/?u=61baaa
Rohde & Schwarz
------
SMY: https://defs.link/?u=93514b
CMU200: https://defs.link/?u=8ccd72
Polarad SPN: https://defs.link/?u=2ead82
Siglent
------
SDM3065X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SDS2102 (hacked to 340MHz): https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SPL-1008.
SDP1168X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SDL1020X-E: https://defs.link/?u=a0eccb
Other Equipment
------
KSGER T12 Soldering Iron: https://defs.link/?u=620ace http://defs.link/?u=5c112e
Quick 861DW: https://defs.link/?u=138c0f https://defs.link/?u=a3fc81
S-993A: https://defs.link/?u=079677 https://defs.link/?u=e855a0
EEVBlog BM235: https://defs.link/?u=12d498
YR1030 Battery ESR: https://defs.link/?u=c56527
Heathkit IT-12 Signal Tracer.
Racal Dana 1992: https://defs.link/?u=8eeeba
Bird 43: htt
...
https://www.youtube.com/watch?v=lwnmcZBjrUc
Diana McKay and a couple of her dogs getting clear rounds, I think there was another one which I had missed and not recorded. #ifixstuff #thedefpom #electronicsrepair
TheDefpom Merchandise: https://teespring.com/stores/thedefpom
...
https://www.youtube.com/watch?v=N9aUVhKR8bA
Remember to subscribe !
I repair the Power Supply Regulator PCB again, it got shorted out by the extender card and it blew the -15V regulator (Q8) and the +20V regulator (Q17), I substitute both parts with some higher current transistors (as I didn't have the correct parts, these have been ordered).
Measurement & Analysis Instruments: https://goo.gl/gPxTxT
Give this a Thumbs Up if you like it share the video with your friends, it helps to grow the channel.
To donate money to the channel please use one of the methods below, cheers !
Patreon: https://www.patreon.com/TheDefpom
PayPal Donations: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=SDDYPAS9BJ2CE
Test equipment appeal: https://www.youtube.com/watch?v=cDFThnxqDWU #ifixstuff #thedefpom #electronicsrepair
TheDefpom Merchandise: https://teespring.com/stores/thedefpom
==========================================
Some Of My Electronics Tools (video and purchase links)
==========================================
Boonton
------
4220.
8210: https://defs.link/?u=e1eddc
Fluke
------
8842A:
45: https://defs.link/?u=eac51d
343A: https://defs.link/?u=13c93d
5200A: https://defs.link/?u=a43c99
540B: https://defs.link/?u=0c6bd9
893A.
A90.
HP/Agilent/Keysight
------
4261A: https://defs.link/?u=07ed95
5005A.
5342A 18GHz: https://defs.link/?u=5f7513
6181B: https://defs.link/?u=b12aef
8012B: https://defs.link/?u=ca5764
8648B: https://defs.link/?u=da52a3
8901B: https://defs.link/?u=535835
DSOX1102G: https://defs.link/?u=a68d39 https://defs.link/?u=12d498
E3646A: https://defs.link/?u=128f4a
Marconi
------
2022D.
2955.
TF2103: https://defs.link/?u=61baaa
Rohde & Schwarz
------
SMY: https://defs.link/?u=93514b
CMU200: https://defs.link/?u=8ccd72
Polarad SPN: https://defs.link/?u=2ead82
Siglent
------
SDM3065X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SDS2102 (hacked to 340MHz): https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SPL-1008.
SDP1168X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SDL1020X-E: https://defs.link/?u=a0eccb
Other Equipment
------
KSGER T12 Soldering Iron: https://defs.link/?u=620ace http://defs.link/?u=5c112e
Quick 861DW: https://defs.link/?u=138c0f https://defs.link/?u=a3fc81
S-993A: https://defs.link/?u=079677 https://defs.link/?u=e855a0
EEVBlog BM235: https://defs.link/?u=12d498
YR1030 Battery ESR: https://defs.link/?u=c56527
Heathkit IT-12 Signal Tracer.
Racal Dana 1992: https://defs.link/?u=8eeeba
Bird 43: https://defs.link/?u=4b18f7
Sinadder 3: https://defs.link/?u=2bf1dd
Audio Control SA-3050A RTA: https://defs.link/?u=a04df2
Korad KA3305D: https://defs.link/?u=69090a
PDVS2mini: https://defs.link/?u=869ba4
Valhalla 2703: https://defs.link/?u=06bcfc
Feeltech FY6800: https://defs.link/?u=8b98cd http://defs.link/?u=34d101
E
...
https://www.youtube.com/watch?v=QVUkvPQgqfE
Remember to subscribe !
The saga continues....
Part 3 of the Fluke 5200A Programmable AC Voltage Calibrator shows me doing more diagnostics and repairs to the power supply.
Give this a Thumbs Up if you like it, it helps to grow the channel, also please share the video with your friends to help the channel to grow !
Test equipment appeal: https://www.youtube.com/watch?v=cDFThnxqDWU
To donate money to help fund items for the channel please use one of the methods below, cheers !
PayPal Donations: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=SDDYPAS9BJ2CE
Patreon: https://www.patreon.com/TheDefpom #ifixstuff #thedefpom #electronicsrepair
TheDefpom Merchandise: https://teespring.com/stores/thedefpom
==========================================
Some Of My Electronics Tools (video and purchase links)
==========================================
Boonton
------
4220.
8210: https://defs.link/?u=e1eddc
Fluke
------
8842A:
45: https://defs.link/?u=eac51d
343A: https://defs.link/?u=13c93d
5200A: https://defs.link/?u=a43c99
540B: https://defs.link/?u=0c6bd9
893A.
A90.
HP/Agilent/Keysight
------
4261A: https://defs.link/?u=07ed95
5005A.
5342A 18GHz: https://defs.link/?u=5f7513
6181B: https://defs.link/?u=b12aef
8012B: https://defs.link/?u=ca5764
8648B: https://defs.link/?u=da52a3
8901B: https://defs.link/?u=535835
DSOX1102G: https://defs.link/?u=a68d39 https://defs.link/?u=12d498
E3646A: https://defs.link/?u=128f4a
Marconi
------
2022D.
2955.
TF2103: https://defs.link/?u=61baaa
Rohde & Schwarz
------
SMY: https://defs.link/?u=93514b
CMU200: https://defs.link/?u=8ccd72
Polarad SPN: https://defs.link/?u=2ead82
Siglent
------
SDM3065X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SDS2102 (hacked to 340MHz): https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SPL-1008.
SDP1168X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SDL1020X-E: https://defs.link/?u=a0eccb
Other Equipment
------
KSGER T12 Soldering Iron: https://defs.link/?u=620ace http://defs.link/?u=5c112e
Quick 861DW: https://defs.link/?u=138c0f https://defs.link/?u=a3fc81
S-993A: https://defs.link/?u=079677 https://defs.link/?u=e855a0
EEVBlog BM235: https://defs.link/?u=12d498
YR1030 Battery ESR: https://defs.link/?u=c56527
Heathkit IT-12 Signal Tracer.
Racal Dana 1992: https://defs.link/?u=8eeeba
Bird 43: https://defs.link/?u=4b18f7
Sinadder 3: https://defs.link/?u=2bf1dd
Audio Control SA-3050A RTA: https://defs.link/?u=a04df2
Korad KA3305D: https://defs.link/?u=69090a
PDVS2mini: https://defs.link/?u=869ba4
Valhalla 2703: https://defs.link/?u=06bcfc
Feeltech FY6800: https://defs.link/?u=8b98cd http://defs.link/?u=34d101
Eakins Microscope: https://defs.link/?u=b0278b https://defs.link/?u=262327
Mustool G600: https://defs.link/?u=b8bc26 https://
...
https://www.youtube.com/watch?v=j3x4d4zIY94
I show how to calibrate the 10MHz reference frequency of the HP8648B RF signal generator, you can do exactly the same 10MHz Reference Calibration on the HP8647A HP8648A, HP8648C, HP8648D.
Subscribe: https://defs.link/?u=ffa106
Click the Bell Icon to get notifications about my future videos!
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Test Equipment Repair Videos: https://www.youtube.com/playlist?list=PL2z3V9RkHQE21HOatpZqBT7XPDF-xVgYp
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Apple Repair Videos: https://www.youtube.com/playlist?list=PL2z3V9RkHQE1vu2Hh_8Mg5NhVSWzbPWFD
CB & HAM Radio Videos: https://www.youtube.com/playlist?list=PL2z3V9RkHQE3ki74hMMitH9aRlLa9ZgZx
Donate so I can make more videos for you:
Become a Patreon!: https://defs.link/?u=fcb3a1
PayPal Donations: https://defs.link/?u=b099ee
My website: https://www.TheDefpom.com
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My Thingiverse for 3D printed replacement test equipment parts: https://defs.link/?u=0347b1
I upload new videos at the same time each morning (NZ Time) at least 3 times a week, on Monday, Wednesday and Friday at a minimum, if possible I will also do a Live Stream on a Sunday morning, so watch out for those too.
#TheDefpom
#IFixStuff
#RepairVideo
#Electronics
#Repair
#TestEquipment
#Review
#Defpom
==========================================
Some Of My Electronics Tools (video and purchase links)
==========================================
Boonton
------
4220.
8210: https://defs.link/?u=e1eddc
Fluke
------
8842A:
45: https://defs.link/?u=eac51d
343A: https://defs.link/?u=13c93d
5200A: https://defs.link/?u=a43c99
540B: https://defs.link/?u=0c6bd9
893A.
A90.
HP/Agilent/Keysight
------
4261A: https://defs.link/?u=07ed95
5005A.
5342A 18GHz: https://defs.link/?u=5f7513
6181B: https://defs.link/?u=b12aef
8012B: https://defs.link/?u=ca5764
8648B: https://defs.link/?u=da52a3
8901B: https://defs.link/?u=535835
DSOX1102G: https://defs.link/?u=a68d39 https://defs.link/?u=12d498
E3646A: https://defs.link/?u=128f4a
Marconi
------
2022D.
2955.
TF2103: https://defs.link/?u=61baaa
Rohde & Schwarz
------
SMY: https://defs.link/?u=93514b
CMU200: https://defs.link/?u=8ccd72
Polarad
...
https://www.youtube.com/watch?v=PV5uh6Dam3g