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Re: Board cleaning trials

2006-02-22 by protonceksleeperman

... tried ... will ... for ... would ... surface. ... no worries...i think that problem is in the country...i m in Europe (slovenia) and so products here are

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Re: Board cleaning trials

2006-02-22 by fenrir_co

... will ... for ... Remember that many of these tarnish removal chemicals /also/ leave a protective layer in order to prevent the metal from tarnishing

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Re: Safe CuCl etchant storage?

2006-02-22 by fenrir_co

I also agree that a milk bottle is the worst thing to store anything in. However, most milk bottles I ve seen are #2 recycling, not #5. I have used FeCl, HCl +

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Re: Board cleaning trials

2006-02-22 by protonceksleeperman

That s a good one! I can t find mentioned product here, so i tried similar stuff - tarnish remover - i found Cillit Bang in local store, tried on some old

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Re: Safe CuCl etchant storage?

2006-02-22 by John Popelish

... Then you are asking for trouble. Milk bottles are designed to work well for more than the life of the product they contain. And that isn t very long. I

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Board cleaning trials

2006-02-22 by Wayne Topa

I have followed the suggestions of those more experienced then me in precleaning the pcb, and found that I must have been doing something wrong. My first 2

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Safe CuCl etchant storage?

2006-02-22 by wbblair3

I realize that a glass container would be safe for the storage of CuCl etchant with respect to acid resistance, but breakage would be the obvious problem

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Re: Photolithography

2006-02-21 by codeSuidae

I m comfortable with the exposure and developing of photosensitive boards, but I m curious how one goes about making them photosensitive in the first place?

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Re: Photolithography

2006-02-21 by patroclus04

Thank you, I ll try to do something, and see how it comes. Yes, I live in Spain, and UV lights are quite expensive and not so easy to find. I might start with

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Re: Photolithography

2006-02-21 by Richard

I will second David s comments on the photo process. I too have been making boards, both 1 and 2 sided, since about 1980 using the photo process; and like

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Re: Acetone, HCl and H2O2 warning

2006-02-21 by wbblair3

... Simple fix. I d suggest mixing your HCL/H2O2 etchant as soon as you purchase the ingredients. I suspect the resulting mixture would be either useless or

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Re: Cleaning PCB without Acetone

2006-02-21 by wbblair3

... well clear of MEK. ... That wasn t MY story, it was one I found in this group by searching for the keyword MEK . I ve never used MEK. WB

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Re: Film Caps at RF frequencies

2006-02-21 by John Popelish

... caps. ... Who does? I have managed to shed a little by trying to answer questions for others, about things I should have understood. I foten find that I

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Re: Film Caps at RF frequencies

2006-02-21 by kilocycles

John, Now we re getting there. I went to Mouser s site and checked on a capacitor I typically buy for construction of crystal filters in transmitters and

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Re: AC to PCB

2006-02-21 by J

What do you mean by IEC? I m going to use this one because this is an actual prototype for an upstart company. After this baby is done, we re going to hook

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Greetings

2006-02-21 by coitmusic

Greetings to all... I ve been lurking about for about a year or so and I think I m finally ready to give this a try! I hope to make it down to Staples tomorrow

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Re: AC to PCB

2006-02-21 by dl5012

Hi Vlad, After thinking about it, you re right. What I said about connecting neutral to earth ground was wrong. It should only be connected at the panel.

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Re: [Homebrew_PCBs] Re: AC to PCB

2006-02-21 by Vlad Krupin

small safety note [snip] ... I think I must ve misunderstood what you said. But after re-reading this post a couple of times, what you said still sounds a bit

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Re: Film Caps at RF frequencies

2006-02-21 by John Popelish

... At the low end of that range many film caps are fine, as long as they are low inductance construction. At the top and of that frequency range, I think

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Re: Film Caps at RF frequencies

2006-02-21 by kilocycles

... capacitors aren t ... http://www.rapidelectronics.co.uk/rkmain.asp?PAGEID=80010&CTL_CAT_CODE=30151&STK_PROD_CODE=M32340&XPAGENO=1 ... Leon, Boy, I haven t

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Re: Isopropyl Alcohol

2006-02-21 by kilocycles

Stuart, Actually, the problem the gas line antifreeze solves is water in the fuel line due to condensation. It used to be much more of a problem when

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Re: AC to PCB

2006-02-20 by wh1temouse

I have a picture of how I did it in Photos- Mickey. The AC cord comes in from the left, you can kind of make out where the three leads go. Mickey

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Re: Film Caps at RF frequencies

2006-02-20 by kilocycles

John, Which type of film capacitors would be used at RF frequencies (say, 1.8 to 30 MHz)? I recently had the opposite problem...finding a low value 150 pF cap

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Re: [Homebrew_PCBs] AC to PCB

2006-02-20 by JanRwl@AOL.COM

In a message dated 2/20/2006 1:35:13 P.M. Central Standard Time, wyninejr@yahoo.com writes: Does anyone have idea about how to attach an AC line to a PCB

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Re: AC to PCB

2006-02-20 by dl5012

Hi J, ... board? ... this a ... That will work, I ve seen many pieces of equipment do that. Normally you d have a switch and fuse in series with hot line.

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Re: AC to PCB

2006-02-20 by soffee83

Hi J, I m no expert, but I ve gutted many devices for parts which were equipped with PCB-mounted transformers. I ve got a small cable box here that I m using

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Re: [Homebrew_PCBs] Re: Photolithography

2006-02-20 by David Hopkins

Gentlemen, may I add my 2 cents worth to this discussion. Over the last 30 years I have made many hundreds of PCB boards using the photographic method. I have

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Re: Photolithography

2006-02-20 by patroclus04

Thanks. So, as I se,, the light goes inside the box, and the board outside, facing down on the light. I suppose UV light is not good to take. I just meet a

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Re: [Homebrew_PCBs] Re: PCB driller

2006-02-20 by Vlad Krupin

Manly spindle indeed... but it works great! I have the same setup. The only question I have is how fast to feed the drill bit into the PCB? I do not want to

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The Reynold's Wrap Thing

2006-02-19 by soffee83

Hi again, I grabbed a roll of that Release foil a while back after Myc s recommendation, and finally got around to trying some out the other night. It s

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