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Old 6th January 2010, 07:58 PM   #1
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Talking Tube Symbols

Does anyone know of a free schematic software program that has tube symbols in it's schematic library?
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Old 6th January 2010, 08:19 PM   #2
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cheers!

just a screenshot:
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Old 6th January 2010, 08:23 PM   #3
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Quote:
Originally Posted by riverrat373 View Post
Does anyone know of a free schematic software program that has tube symbols in it's schematic library?
Not any free ones.
The free software isusally poor and lacking in functionalty.

I have used a couple and teh error checking was so poor I ended up dumping 100 pcbs due to teh software not picking up a mistake.
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Old 6th January 2010, 08:39 PM   #4
SY is offline SY  United States
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ExpressPCB's schematic program has tubes. And it's easy to create your own symbols.
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Old 6th January 2010, 08:40 PM   #5
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Baloney (to #3)... LTSpice is free and has both triode and pentode symbols in the default library.
Nothing poor or lacking about LTSpice. If all you wanna do is draw and/or simulate, that is...
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Old 6th January 2010, 09:05 PM   #6
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ever heard of EAGLE?

It doesn't come with tubes in the standard library, but you can create them on your own, or maybe even find a lib on the web.

Affirmative on the Tubes in LTSpice. Nice program, if drawing (and simulting) is all you want.
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Old 6th January 2010, 11:49 PM   #7
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I have Pcb Express and did not see any tube symbols. I want to copy a tube schematic then convert it to a pcb.
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Old 7th January 2010, 11:49 AM   #8
marce is offline marce  United Kingdom
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Even the expensive packages tend to only have a limited set of symbols, and most firms tend to ditch the supplied libraries and do their own, based on paper sizes preffered, internal standards, text size and base grid the schematics are drawn to. Getting the libraries right is one of the most important tasks when using ECAD, then you can place the sysmbols and join the dots. Also being able to transfer directly from the schematic to PCB layout will save lots of heartache and errors.
The IPC is currently working towards a standard for schematic symbols (IPC-261x series) but unlike PCB footprints (IPC-7351) it is proving hard to get a unified response between engineers.
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Old 8th January 2010, 01:22 AM   #9
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*** t3h GeeK ZonE *** Schematic Symbols

Cheers!
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Old 8th January 2010, 04:15 AM   #10
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Thanks for all the help! I found what I was looking for!
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