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0.2MHz - 2MHz step up transformer

Started by Paul Jackson January 22, 2012
On Mon, 23 Jan 2012 09:34:14 -0800, Joerg <invalid@invalid.invalid>
wrote:

>John Larkin wrote: >> On Mon, 23 Jan 2012 09:47:38 -0600, amdx <amdx@knology.net> wrote: >> >>> On 1/22/2012 11:58 AM, John Larkin wrote: >>>> On Sun, 22 Jan 2012 08:01:45 -0600, amdx<amdx@knologynotthis.net> >>>> wrote: >>>> >>>>> On 1/22/2012 6:05 AM, Paul Jackson wrote: >>>>>> I am looking for an impedance matching transformer that will convert >>>>>> the 50 Ohm output of my function generator and to a 1K Ohm resistive >>>>>> load. >>>>>> >>>>>> That provides a 20x step-up as well, so with losses 10V yields maybe >>>>>> 100V. >>>>>> >>>>>> Frequency range is anywhere between 200KHz to 2MHz. Required current, >>>>>> up to 20mA. >>>>>> >>>>>> I would definitely prefer a ready-made transformer. Does anyone know >>>>>> under what application heading one might be found? >>>>>> >>>>>> Paul Jackson >>>>> If you want 20 ma at 100 volts, I don't think you generator will supply >>>>> the power you need. >>>>> If the generator supplies 10V into 50 ohms that is 20 ma. >>>> 200 mA, short-circuit current. >>>> >>>> John >>> >>> >>> Hi John, >>> Oh, redid the math. You're right :-) >>> Mikek >> >> >> I have this background thing that runs in the back of my head and >> checks the math on everything. ... > > >Careful. That can quickly ruin an engineer's marriage. There are things >that are better left non-calculated :-)
My wife is a speech pathologist, and has phenomenal language and people skills. SPs tend to marry engineers, to do the grunt work for them. Maybe they feel sorry for us, too. I do the cooking that involves any serious time:temperature profiles. John
Paul Jackson wrote:

> On Sun, 22 Jan 2012 10:27:38 -0500, Jamie > <jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote: > > >> Being a function generator as the source, I think you better start >>thinking of HV amplifiers instead. A DC coupled one to be exact. >> > > > How then would I match the 1K Ohm resistive load? > > Paul
I think that would be obvious with a use of an amp, you simply use a series R in the load or current limit the amp to equate to the same. Jamie
John Larkin wrote:
> On Mon, 23 Jan 2012 09:34:14 -0800, Joerg <invalid@invalid.invalid> > wrote: > >> John Larkin wrote: >>> On Mon, 23 Jan 2012 09:47:38 -0600, amdx <amdx@knology.net> wrote: >>> >>>> On 1/22/2012 11:58 AM, John Larkin wrote: >>>>> On Sun, 22 Jan 2012 08:01:45 -0600, amdx<amdx@knologynotthis.net> >>>>> wrote: >>>>> >>>>>> On 1/22/2012 6:05 AM, Paul Jackson wrote: >>>>>>> I am looking for an impedance matching transformer that will convert >>>>>>> the 50 Ohm output of my function generator and to a 1K Ohm resistive >>>>>>> load. >>>>>>> >>>>>>> That provides a 20x step-up as well, so with losses 10V yields maybe >>>>>>> 100V. >>>>>>> >>>>>>> Frequency range is anywhere between 200KHz to 2MHz. Required current, >>>>>>> up to 20mA. >>>>>>> >>>>>>> I would definitely prefer a ready-made transformer. Does anyone know >>>>>>> under what application heading one might be found? >>>>>>> >>>>>>> Paul Jackson >>>>>> If you want 20 ma at 100 volts, I don't think you generator will supply >>>>>> the power you need. >>>>>> If the generator supplies 10V into 50 ohms that is 20 ma. >>>>> 200 mA, short-circuit current. >>>>> >>>>> John >>>> >>>> Hi John, >>>> Oh, redid the math. You're right :-) >>>> Mikek >>> >>> I have this background thing that runs in the back of my head and >>> checks the math on everything. ... >> >> Careful. That can quickly ruin an engineer's marriage. There are things >> that are better left non-calculated :-) > > My wife is a speech pathologist, and has phenomenal language and > people skills. SPs tend to marry engineers, to do the grunt work for > them. Maybe they feel sorry for us, too. >
So do nurses (my wife's original background before she went into industry). She said she vowed not to marry an engineer and then ... One thing I learned lately: Do not question the price of a hand bag :-)
> I do the cooking that involves any serious time:temperature profiles. >
I used to cook my own elaborate meals every day while at university, didn't like any of the cantina foods there. Since my wife is much better in that department my cooking duties is now reduced to Sat/Sun, barbecue. But then everything is cooked outside, meat, vegetables, pizza, bread, potatoes, whatever she hands me. -- Regards, Joerg http://www.analogconsultants.com/
On Mon, 23 Jan 2012 07:18:38 -0800 (PST), Bill Sloman
<bill.sloman@ieee.org> wrote:

>On Jan 23, 3:02&nbsp;pm, John Larkin
>> >> Right. He actually does stuff. > >So did I. A few decades ago.
IFYPFY
On Mon, 23 Jan 2012 17:05:30 -0800, Joerg <invalid@invalid.invalid>
wrote:

>John Larkin wrote: >> On Mon, 23 Jan 2012 09:34:14 -0800, Joerg <invalid@invalid.invalid> >> wrote: >> >>> John Larkin wrote: >>>> On Mon, 23 Jan 2012 09:47:38 -0600, amdx <amdx@knology.net> wrote: >>>> >>>>> On 1/22/2012 11:58 AM, John Larkin wrote: >>>>>> On Sun, 22 Jan 2012 08:01:45 -0600, amdx<amdx@knologynotthis.net> >>>>>> wrote: >>>>>> >>>>>>> On 1/22/2012 6:05 AM, Paul Jackson wrote: >>>>>>>> I am looking for an impedance matching transformer that will convert >>>>>>>> the 50 Ohm output of my function generator and to a 1K Ohm resistive >>>>>>>> load. >>>>>>>> >>>>>>>> That provides a 20x step-up as well, so with losses 10V yields maybe >>>>>>>> 100V. >>>>>>>> >>>>>>>> Frequency range is anywhere between 200KHz to 2MHz. Required current, >>>>>>>> up to 20mA. >>>>>>>> >>>>>>>> I would definitely prefer a ready-made transformer. Does anyone know >>>>>>>> under what application heading one might be found? >>>>>>>> >>>>>>>> Paul Jackson >>>>>>> If you want 20 ma at 100 volts, I don't think you generator will supply >>>>>>> the power you need. >>>>>>> If the generator supplies 10V into 50 ohms that is 20 ma. >>>>>> 200 mA, short-circuit current. >>>>>> >>>>>> John >>>>> >>>>> Hi John, >>>>> Oh, redid the math. You're right :-) >>>>> Mikek >>>> >>>> I have this background thing that runs in the back of my head and >>>> checks the math on everything. ... >>> >>> Careful. That can quickly ruin an engineer's marriage. There are things >>> that are better left non-calculated :-) >> >> My wife is a speech pathologist, and has phenomenal language and >> people skills. SPs tend to marry engineers, to do the grunt work for >> them. Maybe they feel sorry for us, too. >> > >So do nurses (my wife's original background before she went into >industry). She said she vowed not to marry an engineer and then ... > >One thing I learned lately: Do not question the price of a hand bag :-) > > >> I do the cooking that involves any serious time:temperature profiles. >> > >I used to cook my own elaborate meals every day while at university, >didn't like any of the cantina foods there. Since my wife is much better >in that department my cooking duties is now reduced to Sat/Sun, >barbecue. But then everything is cooked outside, meat, vegetables, >pizza, bread, potatoes, whatever she hands me.
My wife is the epitome of feminine grace and elegance. Just a few minutes ago, she delicately remarked to me that "The great thing about beer is that the burps are so satisfying." John (full of Dungeness crab, sourdough, Purple Haze.)
On Mon, 23 Jan 2012 17:05:30 -0800, Joerg <invalid@invalid.invalid> wrote:

>John Larkin wrote: >> On Mon, 23 Jan 2012 09:34:14 -0800, Joerg <invalid@invalid.invalid> >> wrote: >> >>> John Larkin wrote: >>>> On Mon, 23 Jan 2012 09:47:38 -0600, amdx <amdx@knology.net> wrote: >>>> >>>>> On 1/22/2012 11:58 AM, John Larkin wrote: >>>>>> On Sun, 22 Jan 2012 08:01:45 -0600, amdx<amdx@knologynotthis.net> >>>>>> wrote: >>>>>> >>>>>>> On 1/22/2012 6:05 AM, Paul Jackson wrote: >>>>>>>> I am looking for an impedance matching transformer that will convert >>>>>>>> the 50 Ohm output of my function generator and to a 1K Ohm resistive >>>>>>>> load. >>>>>>>> >>>>>>>> That provides a 20x step-up as well, so with losses 10V yields maybe >>>>>>>> 100V. >>>>>>>> >>>>>>>> Frequency range is anywhere between 200KHz to 2MHz. Required current, >>>>>>>> up to 20mA. >>>>>>>> >>>>>>>> I would definitely prefer a ready-made transformer. Does anyone know >>>>>>>> under what application heading one might be found? >>>>>>>> >>>>>>>> Paul Jackson >>>>>>> If you want 20 ma at 100 volts, I don't think you generator will supply >>>>>>> the power you need. >>>>>>> If the generator supplies 10V into 50 ohms that is 20 ma. >>>>>> 200 mA, short-circuit current. >>>>>> >>>>>> John >>>>> >>>>> Hi John, >>>>> Oh, redid the math. You're right :-) >>>>> Mikek >>>> >>>> I have this background thing that runs in the back of my head and >>>> checks the math on everything. ... >>> >>> Careful. That can quickly ruin an engineer's marriage. There are things >>> that are better left non-calculated :-) >> >> My wife is a speech pathologist, and has phenomenal language and >> people skills. SPs tend to marry engineers, to do the grunt work for >> them. Maybe they feel sorry for us, too. >> > >So do nurses (my wife's original background before she went into >industry). She said she vowed not to marry an engineer and then ...
My wife has a nursing degree, though she got it after we were married. She's never used it, since the kid came along a couple of months after she graduated.
>One thing I learned lately: Do not question the price of a hand bag :-)
Oh, I always do. I don't care but I always question it. She pays me back when I buy tools. ;-)
>> I do the cooking that involves any serious time:temperature profiles. >> > >I used to cook my own elaborate meals every day while at university, >didn't like any of the cantina foods there. Since my wife is much better >in that department my cooking duties is now reduced to Sat/Sun, >barbecue. But then everything is cooked outside, meat, vegetables, >pizza, bread, potatoes, whatever she hands me.
I can't stand cooking. Since I'm by myself four nights a week, meals are pretty monotonous.
On Mon, 23 Jan 2012 22:51:34 -0500, "krw@att.bizzzzzzzzzzzz"
<krw@att.bizzzzzzzzzzzz> wrote:

>On Mon, 23 Jan 2012 17:05:30 -0800, Joerg <invalid@invalid.invalid> wrote: > >>John Larkin wrote: >>> On Mon, 23 Jan 2012 09:34:14 -0800, Joerg <invalid@invalid.invalid> >>> wrote: >>> >>>> John Larkin wrote: >>>>> On Mon, 23 Jan 2012 09:47:38 -0600, amdx <amdx@knology.net> wrote: >>>>> >>>>>> On 1/22/2012 11:58 AM, John Larkin wrote: >>>>>>> On Sun, 22 Jan 2012 08:01:45 -0600, amdx<amdx@knologynotthis.net> >>>>>>> wrote: >>>>>>> >>>>>>>> On 1/22/2012 6:05 AM, Paul Jackson wrote: >>>>>>>>> I am looking for an impedance matching transformer that will convert >>>>>>>>> the 50 Ohm output of my function generator and to a 1K Ohm resistive >>>>>>>>> load. >>>>>>>>> >>>>>>>>> That provides a 20x step-up as well, so with losses 10V yields maybe >>>>>>>>> 100V. >>>>>>>>> >>>>>>>>> Frequency range is anywhere between 200KHz to 2MHz. Required current, >>>>>>>>> up to 20mA. >>>>>>>>> >>>>>>>>> I would definitely prefer a ready-made transformer. Does anyone know >>>>>>>>> under what application heading one might be found? >>>>>>>>> >>>>>>>>> Paul Jackson >>>>>>>> If you want 20 ma at 100 volts, I don't think you generator will supply >>>>>>>> the power you need. >>>>>>>> If the generator supplies 10V into 50 ohms that is 20 ma. >>>>>>> 200 mA, short-circuit current. >>>>>>> >>>>>>> John >>>>>> >>>>>> Hi John, >>>>>> Oh, redid the math. You're right :-) >>>>>> Mikek >>>>> >>>>> I have this background thing that runs in the back of my head and >>>>> checks the math on everything. ... >>>> >>>> Careful. That can quickly ruin an engineer's marriage. There are things >>>> that are better left non-calculated :-) >>> >>> My wife is a speech pathologist, and has phenomenal language and >>> people skills. SPs tend to marry engineers, to do the grunt work for >>> them. Maybe they feel sorry for us, too. >>> >> >>So do nurses (my wife's original background before she went into >>industry). She said she vowed not to marry an engineer and then ... > >My wife has a nursing degree, though she got it after we were married. She's >never used it, since the kid came along a couple of months after she >graduated. > >>One thing I learned lately: Do not question the price of a hand bag :-) > >Oh, I always do. I don't care but I always question it. She pays me back >when I buy tools. ;-) > >>> I do the cooking that involves any serious time:temperature profiles. >>> >> >>I used to cook my own elaborate meals every day while at university, >>didn't like any of the cantina foods there. Since my wife is much better >>in that department my cooking duties is now reduced to Sat/Sun, >>barbecue. But then everything is cooked outside, meat, vegetables, >>pizza, bread, potatoes, whatever she hands me. > >I can't stand cooking. Since I'm by myself four nights a week, meals are >pretty monotonous.
Guys just eat ribs and Scoops over the sink. It just takes a minute. John
On Jan 24, 3:08=A0am, Pueblo Dancer <Kach...@AllHopiIsLost.org> wrote:
> On Mon, 23 Jan 2012 07:18:38 -0800 (PST),BillSloman > > <bill.slo...@ieee.org> wrote: > >On Jan 23, 3:02=A0pm, John Larkin > > >> Right. He actually does stuff. > > >So did I. A few decades ago.
******* A little fraud here - and the last time I was in full-time work was May 2003, which isn't even one decade ago yet.
> =A0 IFYPFY
I Fraudulently altered Your Post for You. And got it wrong - as you'd expect from AlwaysWrong. -- Bill Sloman, Nijmegen
On a sunny day (Mon, 23 Jan 2012 12:59:21 -0800) it happened Joerg
<invalid@invalid.invalid> wrote in <9o601dFcgeU1@mid.individual.net>:

> >Ah, that reminds me of the old days. Somewhere I still have that article >"Torrenbuizen" from the Dutch ham radio magazine of the VERON. No, it >was not in the Vonkenboer :-) > >Years ago there was an issue in the test set of a client. We were eating >lunch and I said "Oh, that's easy, we'll just use a video transistor". >Shouldn't have said that. Back in the engineer's cubicle we quickly >found out that those had gone the way of the dinosaurs, extinct.
I still have one...
>> Anyways, finally managed to get dvb-terrestrial, plus DVB-satellite HD (DVB-S2) >> working on this laptop, it is recording now, testing if I can >> screw it up by doing lots of other things at the same time. >> This will replace my media PC, still have to test HD. >> A hundred patches and compiles and recompiles were needed. >> And it runs smooth in Linux, unlike in redmond7 virus, >> > >You guys must watch a lot of TV. My wife would not want a PC in the >living room and I don't either. We watch the evening news and maybe one >old movie. That's it.
Not that much. Did you know there are a lot of religious channels on satellite here? Actually the notebook in the living room is not so bad, you do not even notice it next to the 46 inch LCD, the 300 W RMS amp, speakers, the DVD player, the mp3 player, the DVD collection, and now that cigarette sized HD USB receiver, lotsa cellphones, other laptops, gadgets, what not. DVB-t antenna. I got a new insurance against burglars. In Amsterdam I was robbed 12 times.... Up here does not seem to happen.
On Tue, 24 Jan 2012 00:47:21 -0800 (PST), Bill Sloman
<bill.sloman@ieee.org> wrote:

>On Jan 24, 3:08&nbsp;am, Pueblo Dancer <Kach...@AllHopiIsLost.org> wrote: >> On Mon, 23 Jan 2012 07:18:38 -0800 (PST),BillSloman >> >> <bill.slo...@ieee.org> wrote: >> >On Jan 23, 3:02&nbsp;pm, John Larkin >> >> >> Right. He actually does stuff. >> >> >So did I. A few decades ago. > ******* > >A little fraud here - and the last time I was in full-time work was >May 2003, which isn't even one decade ago yet. > >> &nbsp; IFYPFY > >I Fraudulently altered Your Post for You. And got it wrong - as you'd >expect from AlwaysWrong.
It doesn't qualify as "a few years" either, asshole. After three, the term is "several".