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John Curl's Blowtorch preamplifier part II
John Curl's Blowtorch preamplifier part II
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Old 27th July 2012, 12:05 AM   #24991
scott wurcer is online now scott wurcer  United States
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Quote:
Originally Posted by john curl View Post
I think the Ls of the household wiring might be something like 50 milli-Henries
I'll bet Bill Gates has more .
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Old 27th July 2012, 12:44 AM   #24992
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NO, I made a mistake, it is probably 50 uH. Sorry about that. You could have HAD me, Scott. Keep sharp! '-)
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Old 27th July 2012, 12:52 AM   #24993
RNMarsh is offline RNMarsh  United States
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John Curl's Blowtorch preamplifier part II
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Originally Posted by scott wurcer View Post
I'll bet Bill Gates has more .
Top Fuel AA class..... 0-100mph in .75 seconds. F1 0-60 = 2.5 seconds. Lingenfelter (street legal) C6 = F1. Bet Kawasaki Ninja ZX-14R has more.
 
Old 27th July 2012, 01:49 AM   #24994
Wavebourn is offline Wavebourn  United States
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John Curl's Blowtorch preamplifier part II
About 150 micro Henry for 2 wires, 20 meters. How long wires does Billy Gates have?
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Old 27th July 2012, 02:18 AM   #24995
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Originally Posted by Wavebourn View Post
About 150 micro Henry for 2 wires, 20 meters. How long wires does Billy Gates have?
You sure, Wave? Rule of thumb, 7nH per cm of conductor in free space, I make it 15uH for that scenario ...

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Old 27th July 2012, 02:24 AM   #24996
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"-I'm selling my 700 Hp ZR1"
With the shotgun in the rear window?
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Old 27th July 2012, 02:36 AM   #24997
Wavebourn is offline Wavebourn  United States
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John Curl's Blowtorch preamplifier part II
Quote:
Originally Posted by fas42 View Post
You sure, Wave? Rule of thumb, 7nH per cm of conductor in free space, I make it 15uH for that scenario ...
Let's check.

Click the image to open in full size.

For 20M of 2mm thick copper wire it is 39386.7389298843 nH
2 wires in a cable will give approximately 4 times more. 140 micro Henry.

My rule of dumb gives closer result.

Did I miss anything?

Here is online calculator: Inductance of a Straight Wire: A Calculator
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Nothing in the universe is perfect. The ideal things are the ones that are most optimal. Optimization criteria, what matters. When I hear "No Compromise Design", I want to take a sledgehammer and test how impact-proof it is.
 
Old 27th July 2012, 02:45 AM   #24998
RNMarsh is offline RNMarsh  United States
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John Curl's Blowtorch preamplifier part II
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Originally Posted by miklos View Post
"-I'm selling my 700 Hp ZR1"
With the shotgun in the rear window?
 
Old 27th July 2012, 02:52 AM   #24999
RNMarsh is offline RNMarsh  United States
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John Curl's Blowtorch preamplifier part II
Boy! This is great. We have 15uH, 50uH, 140uH and 150uH. Good thing you all dont do design work for a living.
 
Old 27th July 2012, 03:07 AM   #25000
Wavebourn is offline Wavebourn  United States
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John Curl's Blowtorch preamplifier part II
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Originally Posted by RNMarsh View Post
Boy! This is great. We have 15uH, 50uH, 140uH and 150uH. Good thing you all dont do design work for a living.
Join the company. What will be the number if to design for living?
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Nothing in the universe is perfect. The ideal things are the ones that are most optimal. Optimization criteria, what matters. When I hear "No Compromise Design", I want to take a sledgehammer and test how impact-proof it is.
 

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