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Old 21st March 2013, 08:37 PM   #37061
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Quote:
Originally Posted by simon7000 View Post
Well back to audio.

Attached is my 50 ohm load from a CT 24V transformer. I used four 4700 uF capacitors and three 1 ohm resistors. It went from all the capacitors in parallel to a four stage CRCRCRC filter. As a CRCRC filter it did not seem to matter where the 9400 uF was positioned. Of course the four stage filter was the best. Total voltage loss was 6%. So the conclusion seems to be calculated what the worst case into the filter will be and the minimum you need out of it and use a three or four stage filter that uses up the voltage.

ES
Ed, what are you looking at? Filtered out dc with one diode? What schematic?

jn
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Old 21st March 2013, 08:39 PM   #37062
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Originally Posted by jneutron View Post
didn't notice
If there's no sensitory difference, summer or winter, means 100% success score of the repair job.
Nerves are not single solid core, but strands. Bigger the function, the more strands.
The lower the function, fewer strands, higher chance of conductivity issues, and/or under/over-sensitivity.
Double or nothing is my middle name.

(I read latin, but from a different bible)
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Old 21st March 2013, 08:49 PM   #37063
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2 Diodes, CT grounded. Capacitor and series resistors are the variable. Output is across the 50 ohm load resistor. 0dB is 1 VRMS.
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Old 21st March 2013, 08:58 PM   #37064
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Originally Posted by jacco vermeulen View Post
If there's no sensitory difference, summer or winter, means 100% success score of the repair job.
Nerves are not single solid core, but strands. Bigger the function, the more strands.
The lower the function, fewer strands, higher chance of conductivity issues, and/or under/over-sensitivity.
Double or nothing is my middle name.

(I read latin, but from a different bible)
Ah. So if there's high conductivity, then maybe I'm suffering skin effect???

Seriously, thanks for the info..really appreciate it.


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Originally Posted by simon7000 View Post
2 Diodes, CT grounded. Capacitor and series resistors are the variable. Output is across the 50 ohm load resistor. 0dB is 1 VRMS.
Did you match the diodes? There's an awful lot of 60 and odds there..

What speed are the diodes?

jn
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Old 21st March 2013, 09:11 PM   #37065
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Originally Posted by jneutron View Post
.




Did you match the diodes? There's an awful lot of 60 and odds there..

What speed are the diodes?

jn
The pictures shown are with something fancy, (http://www.mouser.com/ds/2/389/CD00050205-112771.pdf) pretty much the same with GI 1N4004 and a few others. The 60 hz is from the transformer unbalance. It is a Signal flat pack, the worst of the bunch.
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Old 21st March 2013, 09:42 PM   #37066
wrinkle is offline wrinkle  United Kingdom
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Originally Posted by jneutron View Post
Sounds dangerous to me. Looks like I'm gonna need a chemist to explain all these compounds to me so I don't kill mself.

Where the heck am I gonna find a chemist around here???

specially an OLD one..

jn

ps..my favorite beverage name in Beijing was "40 degree"
those look like coal tar dyes to me, most of them will also have E-numbers too...
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Old 21st March 2013, 10:19 PM   #37067
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So if there's high conductivity, then maybe I'm suffering skin effect
Exactly.
Amusing about human skin, by putting heat in, the conductivity level can be lowered : The food thread
Reverse of an HF-field on the physical analogy.

(if only electronics had external adjustable sensors of such simple nature)
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Old 21st March 2013, 11:12 PM   #37068
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Default Clock Makers Tool Kit ?...

Click the image to open in full size.
Henry Studley's Tool Chest. - Neatorama
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Old 21st March 2013, 11:23 PM   #37069
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those look like coal tar dyes to me, most of them will also have E-numbers too...
Restoration of art is exempt from some of the rules, OTOH some artists are extremists and order lead. mercury, etc. based materials for new works. Caveat emptor.
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Old 22nd March 2013, 12:50 AM   #37070
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Scott,
You mean you don't break a thermometer open just so you can roll the mercury around in your hands, and don't fix all the dents on your car with lead? Where is the fun in that....... Next thing your going to say is you don't even put solder in your mouth to hold it while you work.....
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