RF Transformers Lead Colors
10:59 28-03-07
Hello everyone,
I need to use a RF Transformer in a TV circuit, But i can't find it in
my country, So i think to search for it in an old Radio to use it, But
they dont write t... Read More
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Danfoss autopsy
J.E.B. - 17:44 31-03-07
Recently I dissected a danfoss variable speed a.c. moter drive. I
found what looked like two transformers with only to wires coming from
each. Are these transformers? If so how w... Read More
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Jacobs Ladders & Stacking Transformers?
15:28 09-03-07
I've build a Jacob's Ladder with an old "Franceformer". The specs
are:
Input; 120 volts - 60 Hz. Output;14,000 volts- 30 Ma.
If I wanted a bigger show and had two identical ... Read More
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how to id transformers ?
robb - 23:06 28-11-07
i have a couple of mystery transformer pulls {microwave, vcr,
clock radio, etc}
i try to google codes on trans with no proper hits ...
how to id these transformers ? is there... Read More
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Questions about Current Transformers:
theCase - 20:32 27-08-06
I've got a tentative plan to try and log power usage in my home, here's
a summary of the plan:
1) Buy two current transformers like these:
http://www.crmagnetics.com/newprod/P... Read More
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a help please
arjun - 03:49 15-11-06
Hello Friends i have a request:
Can anyone give a good performance
emergency lamp circut for a 11Watt CFL, f... Read More
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more noob questions - transformers
20:14 28-03-07
Ok ... try not to laugh when i ask... tho i only have a few questions
on designing a home made transformer.. And of course i dont want to
burn my house down.. so lets start ... Read More
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Transformer drawing 1 amp
08:17 14-03-07
I have a transformer that is drawing about 1 amp when the secondary is
not in use. Is this normal? Its a 15amp 12V CT transformer. The
secondaries read 12 volts from the center... Read More
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Re: oscillator needed
Phil Allison - 23:03 26-11-07
> Hi - I need a 10.7 Mhz signal to debug an FM receiver kit I am putting
> together.
** No you dont.
You maybe need an FM modulated signal at 10.7MHz.
> A... Read More
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Part numbers
J.E.B. - 17:37 17-04-07
Hey everybody, Anyone care to help A newbie figure out what part
numbers are all about? what I mean here is... I have many parts
( transformers and such) with only a number stamp... Read More
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Re: An "active" device
Bob Myers - 21:21 02-08-07
"JeffM" wrote in message
news:1186102598.910040.275650@z24g2000prh.googlegroups.com...
> Trying to define it so that a relay is excluded[1]
> but semiconductors used in ... Read More
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wall wart basic question
LB - 20:01 06-02-07
I have a electronic device that uses an OEM ($$$) wall wart rated at
5VDC and 220mA. In my collection of transformers I found one rated at
5VDC with the same plug/ polarity excep... Read More
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Re: Ferrite Transformer ?
Anthony Fremont - 15:21 21-03-07
mowhoong@hotmail.com wrote:
> Some hobby project uses E or Round type of ferrite transformer which
> are found in the HV driver
> circuit. As this is uncommon or a standard ... Read More
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Re: Fan Motor
00:28 28-04-08
On Thu, 24 Apr 2008 22:53:14 GMT, Rich Grise wrote:
> Well, it sounds like it's definitely probably maybe an induction motor.
>
> Controlling the speed of an induction m... Read More
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Splitting Audio Signal
Brandon - 00:48 21-11-07
I am thinking about starting a project where I will need to split an
input audio signal (from a guitar) into two matching output signals.
To put it simply, I need to "Y" an audio... Read More
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Re: Low Resistance Measurement
06:29 15-10-07
On Mon, 15 Oct 2007 06:42:00 -0400, "Tom Biasi"
wrote:
> As for problems with the megger, you could fry things if you don't know what
> you are doing.
Thanks Tom, tha... Read More
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"coupled" Inductors
Jon Slaughter - 20:40 31-03-08
What are the components that are coils of wire that are used like an
inductor but are wound on the same bobbin/core?
I took a part a dsl filter and I'm trying to determine wha... Read More
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Re: Jacobs Ladder
Don Klipstein - 03:32 28-10-06
In , Jonathan Kirwan wrote:
> On 25 Oct 2006 07:04:40 -0700, "Chris" wrote:
>
> > Michael wrote:
> > > Hi,
> > >
> > > I hope you don't mind me posting this here as ... Read More
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