OT : PCB design software
2003-09-11 by Dave Mucha
http://groups.yahoo.com/group/winqcadlist/ is a new yahoo list to get the OT software questions off the other lists. simple and the limited version is full
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Re: [Homebrew_PCBs] Re: makeing party hat traces
2003-09-11 by Ron Amundson
We used them as spark gaps during CE surge testing. The problem is that once they fire, you may get carbon tracks, but they are cheaper than gas tubes. One key
Re: makeing party hat traces
2003-09-10 by Steve
... some ... It isn t to save the board, it is to reduce the chance for fire. And lightning may hit many miles away, you could be looking at the sun outside
Re: makeing party hat traces
2003-09-10 by Dave Mucha
... simple ... I d go for the spark gaps. there are pleanty of individual posts lableled TP3 and such. but it seems a strike would wipe out the whole board,
Re: makeing party hat traces
2003-09-09 by crankorgan
Dave, When a building is struck by lightning, long runs of wires in the building like Alarms and Computer networks, receive an induced high voltage. Some
makeing party hat traces
2003-09-09 by Dave Mucha
Hi all, I have been looking at some board from some other stuff, laser jets I ve pulled apart and alarm panels and stuff, and I have seen more than a few
Re: OT Q-Cad help
2003-09-09 by Dave Mucha
Thanks, After finding out there are TWO Qcad packages, one is a real cad the other a cad for PCB s, I also found that one can make their own packages.
Re: OT Q-Cad help
2003-09-09 by ghidera2000
Aleksander goofed and forgot to include a TO-220 in the TO library. For the moment just choose the Connect1 library and use CONSIP-3-1. Wont give you the
OT Q-Cad help
2003-09-09 by Dave Mucha
Hi all, not sure where to turn, but I m having 2 dumb problems with Q-cad. #1 finding a standard TO-220 description for a TIP-120 that will lay flat, actually
Re: my camera flash circuit burned out! can someone help???
2003-09-08 by Steve
You need to post this on an Electronics repair group, like Electronics 101. This list is about making printed circuit boards. Steve, the moderator
Re: Guidance & possible fee work
2003-09-08 by Sotiris
Hi For printing-etching take a look to a method we use for prototypes at: http://www.geocities.com/pdmtr Regards Sotris Pdmtr http://www.aspisys.com ASPiSYS
my camera flash circuit burned out! can someone help???
2003-09-08 by mumin55555
my camera flash circuit burned out while i was trying to check something there. i tried soldering something over there and suddenly i heard a small blast and a
Re: Guidance & possible fee work
2003-09-08 by ghidera2000
Have you actually attempted to make a board yet? It always seems a lot more complicated when you re on the outside looking in. Two days ago I pumped out a
Re: Guidance & possible fee work
2003-09-07 by wheedal99
If you ve got access to a laser printer and a paper laminator you might try toner transfer. I ve been able to get pretty good results. Under the links section
Re: Printing resist directly onto PCBs
2003-09-07 by Steve
Of course, that print head is designed for paper which would require very little heat. The CD printers are, of course, designed for something thicker but still
Re: [Homebrew_PCBs] Guidance & possible fee work
2003-09-07 by Leon Heller
... I often do this sort of thing for people. Have a look at my web site, and have helped people to get their own PCB processes working properly at home. I
Guidance & possible fee work
2003-09-07 by tamerlane221
Homebrewers... I ve been subsribed to the group and reading posts for several months now with the goal of learning enough to be able to fab a few simple
Re: Printing resist directly onto PCBs
2003-09-07 by wheedal99
Actually, I ve tried it with a citizen printiva 700. Didn t work very well. The copper is a huge heatsink and I couldn t get the printhead hot enough to
Re: [Homebrew_PCBs] Printing resist directly onto PCBs
2003-09-06 by Stuart Winsor
In article , ... ROTFL :-))) Stuart. -- __ __ __ __ __ ___ _____________________________________________ ...
Printing resist directly onto PCBs
2003-09-06 by Steve
Sorry, still haven t found time to test Future in that Epson 800. However: I mentioned before the possibility of using those wax ribbon CD printers for this.
Re: [Homebrew_PCBs] Re: heaving problems with my soldering iron!!!
2003-09-05 by Bard
What is the best soldering method?? ... From: Homebrew_PCBs@yahoogroups.com Date: Thursday, August 28, 2003 9:21:51 PM To: Homebrew_PCBs@yahoogroups.com
Re: Soldering SMT resistors
2003-09-03 by Steve
A friend who s worked in the industry for a long time told me he d hired an immigrant asian woman to assemble SMT boards for him, based on her reputation for
Re: Soldering SMT resistors
2003-09-03 by Steve
... my ... resistors. ... solder ... expensive ... the 2 ... appreciated. Look in the Links section, there s a link to the Seattle Robotics newsletter with a
Re: [Homebrew_PCBs] Soldering SMT resistors
2003-09-03 by Stefan Trethan
On Wed, 3 Sep 2003 08:26:48 +0100, Mike Cowlishaw ... very nice idea. i will try it. another thing i often make: when i have to do
Soldering SMT resistors
2003-09-03 by Mike Cowlishaw
I ve found that a very fast and reliable way to solder SMT resistors is as follows: a) Make a simple hold-down, e.g., from a block of wood and a bent piece
Re: [Homebrew_PCBs] Soldering SMT resistors
2003-09-02 by Adam Seychell
This is what I ve found to work. Get yourself an extra soldering iron fitted with a very fine tip. Using some 0.5 mm diameter solder, tin one of the pads so
Re: [Homebrew_PCBs] Soldering SMT resistors
2003-09-01 by Stuart Winsor
In article , ... I ve tried solder paste but haven t been terribly happy with it. The paste actually contains the solder in tiny
Re: Engraving Bits - alternate sources or suggestions?
2003-09-01 by grantfair2001
I ve never tried this, but here s some info: http://www.angelfire.com/az2/proff/PaulJonesEngravingCutters.html Grant
Re: [Homebrew_PCBs] Re: Engraving Bits - alternate sources or suggestions?
2003-09-01 by JanRwl@AOL.COM
In a message dated 9/1/2003 1:48:27 PM Central Standard Time, ... I simply save busted carbide drill-bits and grind the tips at a very slight angle, so that
Re: Engraving Bits - alternate sources or suggestions?
2003-09-01 by crankorgan
Hi, I use the 60 degree mechanical etching bits from Think and Tinker. They are about $9US each in lots of 10. I have yet to try a CARBIDE dental bit. See if
Re: [Homebrew_PCBs] Soldering SMT resistors
2003-09-01 by Leon Heller
... If you apply the correct amount of paste, it won t cause any shorting. I have used sokler paste with a Weller Pyropen, but it s easier to use thin solder
Soldering SMT resistors
2003-09-01 by aussiedude36
I have recently decided I need to utilize SMT resistors on one of my designs as there simply isn t room for regular thru hole resistors. From reading recent
Engraving Bits - alternate sources or suggestions?
2003-09-01 by aussiedude36
I modified an old CNC training machine to work with DeskCNC and have been happily engraving PCB s for a while now, however the only bit that I have found that
Re: [Homebrew_PCBs] Ersin "Savbit"
2003-09-01 by Stefan Trethan
there are other brands than savbit. it is, i would say, common here. ... there are other brands than savbit. it is, i would say, common here. my favourite mail
File - monthly.txt
2003-09-01 by Homebrew_PCBs@yahoogroups.com
Monthly Reminder, please read: Subject lines: Remember to change the subject line if you are straying from the original thread. Please change the subject line
Re: [Homebrew_PCBs] Ersin "Savbit"
2003-09-01 by Leon Heller
... They are still around, as Multicore Solders. They are now owned by Loctite, who are owned by Henkel. Leon -- Leon Heller, G1HSM Tel: +44 1424 423947
Re: [Homebrew_PCBs] Ersin "Savbit"
2003-09-01 by Hugh Prescott
Yes Ersin is still making solder not sure of Savbit though. Try DigiKey. Ersin solders is the only solder that will not cause an asthma attack for me. Used to
Ersin "Savbit"
2003-08-31 by JanRwl@AOL.COM
In a message dated 8/31/2003 8:58:54 AM Central Standard Time, ... Stuart: You are correct. I think it was 1% copper, but it MAY have been much less than 1%.
Re: [Homebrew_PCBs] but is "soldering paste" ok to use?
2003-08-31 by kok@surfbest.net
There is perhaps some confusion about what the term “solder(ing) paste” means. “Solder paste” is solder powder in a paste form, generally including
Re: [Homebrew_PCBs] Re: heaving problems with my soldering iron!!!
2003-08-31 by Stuart Winsor
In article , ... Don t know if you can find it, or even if they still make it, but a company called Multicore Solders of Hemmel
Re: [Homebrew_PCBs] but is "soldering paste" ok to use?
2003-08-31 by Stuart Winsor
In article , ... Perhaps it should be mentioned that there are solder pastes specifically for electronic work. See the example
Re: [Homebrew_PCBs] but is "soldering paste" ok to use?
2003-08-30 by JanRwl@AOL.COM
In a message dated 8/30/2003 2:36:12 AM Central Standard Time, ... Now, THIS is NEW! SMT has caused invention of some new preparations, and, yes, probably
Re: [Homebrew_PCBs] but is "soldering paste" ok to use?
2003-08-30 by Stefan Trethan
On Sat, 30 Aug 2003 08:34:08 +0100, Leon Heller ... but washing of proper flux (colophony) is only for making it look better. it
Re: [Homebrew_PCBs] but is "soldering paste" ok to use?
2003-08-30 by Leon Heller
... From: mumin55555 To: Sent: Friday, August 29, 2003 2:12 PM Subject: [Homebrew_PCBs] but is
Re: [Homebrew_PCBs] but is "soldering paste" ok to use?
2003-08-30 by JanRwl@AOL.COM
In a message dated 8/29/2003 8:14:12 AM Central Standard Time, ... Surely in Israel, electronic solder is readily available if you know how to FIND it! That
Re: [Homebrew_PCBs] but is "soldering paste" ok to use?
2003-08-29 by Stefan Trethan
On Fri, 29 Aug 2003 13:12:32 -0000, mumin55555 ... solder paste may be the stuff for plumbing etc. which corrodes metal. you need
Re: [Homebrew_PCBs] Re: Phenolic boards for PCB Milling
2003-08-29 by Bard
I only found here in Brazil, 1.0 mm Hard steal . I paid 3 Dolares here eheh Very Cheap. Can anyone help me to find a smaller mill too?? Thanks .. ... From:
but is "soldering paste" ok to use?
2003-08-29 by mumin55555
hallo again! i read your answers, thanks a lot. but here, in israel there are almost no electronics stors, and the ones existing, do not have a lot of stuff.
Re: heaving problems with my soldering iron!!!
2003-08-29 by Ben H. Lanmon
... A Cheap $5 iron can be a problem but they can work. If you have a copper tip it is expected for the tip to wear, and can be reshaped with a file, a grinder
Re: [Homebrew_PCBs] heaving problems with my soldering iron!!!
2003-08-28 by JanRwl@AOL.COM
Mumin: The problem you are having is common with solid copper tips. When solder is liquid (hot!), it acts upon the copper as does hot water on sugar or