dumb recapping question
dumb recapping question
check this out
http://www.triodeel.com/hf85s.gif
I want to recap one of these and am guessing
mFd=micro=uF?
or is it
mFd=mili=mF?
so is c3 10mfd= 10000uf cap?
http://www.triodeel.com/hf85s.gif
I want to recap one of these and am guessing
mFd=micro=uF?
or is it
mFd=mili=mF?
so is c3 10mfd= 10000uf cap?
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Re: dumb recapping question
mFd=micro=uF? YES
or is it
mFd=mili=mF? NO
so is c3 10mfd= 10000uf cap? No 10 mfd = 10uf, just a different way of expressing it.
Caps are either Micro, Nano, and Pico. (Nano is rare but you see some)
or is it
mFd=mili=mF? NO
so is c3 10mfd= 10000uf cap? No 10 mfd = 10uf, just a different way of expressing it.
Caps are either Micro, Nano, and Pico. (Nano is rare but you see some)
'Well, I've been to one world fair, a picnic, and a rodeo, and that's the stupidest thing I ever heard come over a set of earphones'
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- RodC
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BTW, you should change the input impedance on the front end of that and turn it into a mic pre, or a guitar amp. Maybe even throw in a tranny.
'Well, I've been to one world fair, a picnic, and a rodeo, and that's the stupidest thing I ever heard come over a set of earphones'
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- RodC
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That or, put a level control between the tranny and the input. Did you put a shunt resistor across the secondary of the tranny?
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- RodC
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Take a look at R1 in this schematic:
http://www.jensentransformers.com/as/as020.pdf
There should be a recomended value for your transformer. This affects the freq performance and what impedance is reflected back to the primary side. A transformers impedance is really what is reflected from the secondary to the primary.
http://www.jensentransformers.com/as/as020.pdf
There should be a recomended value for your transformer. This affects the freq performance and what impedance is reflected back to the primary side. A transformers impedance is really what is reflected from the secondary to the primary.
'Well, I've been to one world fair, a picnic, and a rodeo, and that's the stupidest thing I ever heard come over a set of earphones'
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On something that old, MFD (mfd) will be uF. And MMFD will be pF.
There are new caps around that have their value stated in millifarads, and also in nanofarads; even some (called supercaps) that are in farads.. So it is a good question. But these are quite new (like less than 10 years or so).
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There are new caps around that have their value stated in millifarads, and also in nanofarads; even some (called supercaps) that are in farads.. So it is a good question. But these are quite new (like less than 10 years or so).
________
Asian Tube
Last edited by philbo on Sun Mar 20, 2011 12:13 am, edited 1 time in total.
Nanofarad values are semi-common.
To convert between pF and nF and uF, you jsut slide the decimal points around by 3 or six positions. Example:
1000 pF = 1 nF = .001 uF.
Before anyone nit-picks me, the "u" we've all been using in this thread is actually the Greek letter "mu". I had to look up the code numbers for my PC keyboard, but if you hold down the ALT key and peck 230 into the numeric keypad you get: ?
I don't know how to make a ? on a Mac...or even know if my example will even appear correctly on other types of computers. i just know that I'm seeing a "mu" letter onscreen as I typed this.
Bri
To convert between pF and nF and uF, you jsut slide the decimal points around by 3 or six positions. Example:
1000 pF = 1 nF = .001 uF.
Before anyone nit-picks me, the "u" we've all been using in this thread is actually the Greek letter "mu". I had to look up the code numbers for my PC keyboard, but if you hold down the ALT key and peck 230 into the numeric keypad you get: ?
I don't know how to make a ? on a Mac...or even know if my example will even appear correctly on other types of computers. i just know that I'm seeing a "mu" letter onscreen as I typed this.
Bri
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kickazz.Roboburger wrote:I gotta try that:brianroth wrote:but if you hold down the ALT key and peck 230 into the numeric keypad you get: ?
Bri
?
Holy cow it worked.
*puts this info on a post-it note and attaches it to edge of monitor*
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