Electronics Computer-Aided Design

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ALPS switches

I think I screwed up. I am building a test fixture and need to have some user controls on the board. I added a few push...
0 comments posted 18yrs
posted by gnuarm
0 comments posted 18yrs posted by gnuarm

LTspice Behavioral Expression Question

Can LTspice handle TANH in a behavioral expression? I'm sending a client a netlist and want to make sure it'll run on L...
3 comments posted 18yrs
posted by To-Email-Use-The-Envelope-Icon
3 comments posted 18yrs posted by To-Email-Use-The-Envelope-Icon

PROTEL 99 SE AREA ROUTING QUESTION

Hello ! I am a new member and please forgive my inexperience. I would like to autoroute just a selected area in my PCB,...
0 comments posted 18yrs
posted by microlatina
0 comments posted 18yrs posted by microlatina

PCB manufacture

I had some PCBs made with 22 boards per panel (small boards). I wanted a single panel for prototypes, but it turned out...
17 comments posted 18yrs
posted by gnuarm
17 comments posted 18yrs posted by gnuarm

New version of Eagle

CADsoft has a beta version of Eagle 5.0 on their web site. I downloaded it and it still has their weird user interface....
4 comments posted 18yrs
posted by leon355
4 comments posted 18yrs posted by leon355

Gerber viewer/handler

Any recommendations for a Gerber viewer and/or handler greatly appreciated. The more the merrier (don't ask why) but I r...
20 comments posted 18yrs
posted by h.lewis
20 comments posted 18yrs posted by h.lewis

Group's favourite SPICE software

Hello group, I'm looking for SPICE software recommendations, both freeware and for purchase. Whose programs do you use,...
23 comments posted 18yrs
posted by franciselers
23 comments posted 18yrs posted by franciselers

Drawing questions

I see these frequently on PCB figures (REF BSC TYP). Could someone kindly explain what these mean? REF = reference (to...
2 comments posted 18yrs
posted by blip
2 comments posted 18yrs posted by blip

LTSpice rounding error?

Also posted to LTSpice Yahoo Group: This oscillator is "inter-modulated" by SINE voltage V2, even though the latter is...
1 comments posted 18yrs
posted by ah
1 comments posted 18yrs posted by ah

Error in Spice simulation

I have a strange trouble with a NetList Spice The trouble is relative to vdd. vdd 2000 0 dc 5 returns: Node '2000' has...
0 comments posted 18yrs
posted by noname
0 comments posted 18yrs posted by noname

LTspice - .step waveform viewing

Greetings: I have done a .step (with 4 parameter values) on a .tran simulation. When viewing a trace in LTspice (ver. 2...
1 comments posted 18yrs
posted by crcarleREMOVETHIS
1 comments posted 18yrs posted by crcarleREMOVETHIS

Trying to learn new methods for PCB Layouts.

I've been a tech for 30 or so years, and a hobbyist even longer. I've drawn PCBs using sharpies and the little transfer...
12 comments posted 18yrs
posted by bill_marsden2
12 comments posted 18yrs posted by bill_marsden2

Temperature Sweep in DXP?

Is there any way to get a plot of output vs temperature rather than a series of sweeps at different temperatures?
0 comments posted 18yrs
posted by david95630
0 comments posted 18yrs posted by david95630