View previous topic :: View next topic |
Author |
Message |
Frank Guest
|
Posted: Sat Apr 21, 2007 8:52 pm Post subject: AC Amps measurements |
|
|
I found this old tranformer from an old tube tv, is 120v input and about 140v output, so i can build myself an Isolation Transformer,and i'm trying to know how many amps does it put out, i already blew a fuse out by measuring the same way we measure volts with the AC A setting in the meter 88V, is there another way to measure amps , i never studed it deeply because never had to use the amps side, do i have to use some resistor in series with it,can some one please explain it to me but not so technicaly speaking. thanks guys |
|
Back to top |
|
|
RODALCO
Joined: 28 Oct 2006 Posts: 30 Location: Auckland - New Zealand
|
Posted: Sun Apr 29, 2007 9:27 am Post subject: 120 Volts TX |
|
|
Frank, What is your mains voltage in your country ? ( 110, 220 ?)
If you put 220 Volts on a 120 Volts TX, you are likely to blow a fuse and may damage the TX.
What is the fisical size of the TX core ?
You say the TX is from an old tube TV, what was the nameplate rating ?
That will give you an approx idea.
I would guess that it is something in the range from 100 VA to 300 VA.
You can draw about 1 to 2 Amps from it. Put a 200 Watt lamp in series as a resistor during testing, when not sure if a short is present. |
|
Back to top |
|
|
minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
|
|
Back to top |
|
|
Guest
|
Posted: Sun Apr 29, 2007 10:03 pm Post subject: |
|
|
Frank, What is your mains voltage in your country ? ( 110, 220 ?)
If you put 220 Volts on a 120 Volts TX, you are likely to blow a fuse and may damage the TX.
What is the fisical size of the TX core ?
You say the TX is from an old tube TV, what was the nameplate rating ?
That will give you an approx idea.
Thanks for your help. I 'm in USA, V 110, the size is the size of a 300w that i have but is a step down TX 220 to 110,
it has no imfo, no plate nothing,
i have built myself a SSPL (Simple Series Power Limiter}and have a 200w bulb , i'll try that. Thanks in advance. |
|
Back to top |
|
|
|
|
|
You can post new topics in this forum You can reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|
eServiceInfo on FB -
Service Manuals Free Download -
Service Diagrams
Free TV Schematics Download -
HARDW.net -
Pinout Master -
Jabse Service Manual Search -
Jabse.InK -
onTap.bg
SnimkiOt.com -
Poblizo.com : пътешествия
Latest Service Manuals :
tip3055 Inchange Semiconductor • cp 600 dlp 32d1lps 158 Daewoo • Wren VI HH Brochure Nov88 cdc • NP6012PC CANON • PHILIPS Q522.1E LB CHASSIS LCD TV SM Phi • Panel SAMSUNG LTA320AA05 0 [DS] . Variou • BENQ- E61 1 siemens • B53-0138-00-TXT Kenwood • 2sd2120 Sanyo • VZ8 Chassis MITSUBISHI •
|