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Old 19th October 2007, 06:52 PM   #11
49 - for the 18th time
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Hi Jeb,

Take a look at this site - lots of projects and photo's.

http://www.pmillett.com/index.html

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Old 19th October 2007, 07:05 PM   #12
Gordy is offline Gordy  United Kingdom
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It's all about planning...

Step 1
Think about it.

Step 2
Plan it in your mind.

Step 3
Scribble it out on paper.

Step 5
Mock it up.

Step 6
Rest and relax. Drink a nice cup of tea (/ coffee / beer). Cuddle the wife. Kick the cat. (Or cuddle the cat and kick the wife...). Etc.

Step 7
Repeat steps 1 to 5 about a half-dozen times before you even touch the toolbox...
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Old 19th October 2007, 07:35 PM   #13
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Quote:
Originally posted by Gordy
It's all about planning...

Step 1
Think about it.

Step 2
Plan it in your mind.

Step 3
Scribble it out on paper.

Step 5
Mock it up.

Step 6
Rest and relax. Drink a nice cup of tea (/ coffee / beer). Cuddle the wife. Kick the cat. (Or cuddle the cat and kick the wife...). Etc.

Step 7
Repeat steps 1 to 5 about a half-dozen times before you even touch the toolbox...
Very good advice! Click the image to open in full size.

se
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Old 19th October 2007, 09:29 PM   #14
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i once had a job where we built test fixtures and prototypes, and had to learn how to make wiring harnesses, and make them neat (including keeping the same wires in the same place in the bundle all the way through). we used waxed nylon lacing cord, not zip ties. it takes a bit of practice, but once you get the hang of it, you can do it quickly and easily. the best knot to use is a clove hitch, topped with a surgeon's knot. put your ties about 1" apart, and keep your wires straight in the bundle. there's no books on the subject, as far as i know, but you can see examples of it in military surplus equipment. you may not want to go that far for neatness, but it's not difficult to do. you can even prefab the wiring harnesses on a piece of wood with nails in it (laid out as a duplicate of the inside of the amp chassis, with the nails in the same places as the terminals on the tie strips), which saves a lot of time if you end up making more than one amp.
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Old 19th October 2007, 09:50 PM   #15
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From time to time I've seen the following expression in DIY articles in magazines especially those involving high impedence circuits. The author will advice the constructor to; "minimize stray capacitance". In practise what does this mean for us when laying out circuitry. i.e. what precautions do we take.
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Old 20th October 2007, 12:15 AM   #16
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Hi all,

Well I do my "P to P" boards this way, as shown below: there is a lot of tinkering, ultra high patience on this but in the end the results are fine.
No noises, no hum and optimum strength for all supported components.
And excellent sound.
I use a 2mm fenolite board (with tag strips) just below the amp's top plate.
The board is supported on aluminum L shapes fixed to sides/front of the chassis.
You can see many other details and projects at:
http://vacuumtuberesearch.multiply.com/

[ ]s
Ricardo


Click the image to open in full size.

Click the image to open in full size.
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Old 20th October 2007, 12:52 AM   #17
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Quote:
Originally posted by rwellerson
Well I do my "P to P" boards this way, as shown below: there is a lot of tinkering, ultra high patience on this but in the end the results are fine.
Beautiful work! It really illustrates Gordy's advice.

Click the image to open in full size.

Hope you don't mind that I copied the image and loaded it on my server. Wasn't able to link it directly to the image on your end.

se
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Old 20th October 2007, 02:44 AM   #18
Jeb-D. is offline Jeb-D.  United States
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Wow, that's a masterpiece!
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Old 20th October 2007, 04:02 AM   #19
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I have a name to this:

Brazilian Patience to beautiful works.

Best Regards,
Felipe Navarro
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Old 20th October 2007, 05:11 AM   #20
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Hi Jeb-D I tried "point to point wiring" in Google and got several sites. I recall some years ago seeing a site with about 15 pages on the tpoic. Can't remember where though.

Try "point to point versus PCB" in Google too. That yields some results.
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