Yes I agree with rsavas. Consistency check between sch and layout is very helpful though eagle has lots of idiosyncrasies. Dip trace is another program that I would like to try.
Reg
Prasi
Reg
Prasi
Hi guys,
All cad tools have their idiosyncrasies for sure. I have used the high end stuff when i was a designer for some of the big guys. I have used Cadence Allegro, Mentor Boardstation, they have so many features it takes a while to get up to speed. But they all have bugs in them, so you have to know how to work around these bugs, if they affect your design.
Difficult to call a s/w pkg a EE cad tool if it can not sync a sch with a layout, better to call it a drawing tool than a cad tool.
You know you have a good or half decent EE cad tool when you can cross-probe or highlight nets/comps between the schematic and layout. Kind of where I draw my line.
I was looking further yesterday and recall a series of articles in Elektor mag of late detailing the use of the DesignSpark toolset, written by Neil Gruending. The series starts in the June 2013 issue and is still going in July 2015, which is installment #20, so it is very well documented.
DesignSpark is free and has none of the limits(pcb size, pin/page limits) that Eagle or Diptrace have for their free tools.
I myself have not used DesignSpark yet but it does look very encouraging. Neil seems to be a very knowledgeable EE, so if he endorses the tool I would have to say it is worth trying it out.
Cheers
Rick
All cad tools have their idiosyncrasies for sure. I have used the high end stuff when i was a designer for some of the big guys. I have used Cadence Allegro, Mentor Boardstation, they have so many features it takes a while to get up to speed. But they all have bugs in them, so you have to know how to work around these bugs, if they affect your design.
Difficult to call a s/w pkg a EE cad tool if it can not sync a sch with a layout, better to call it a drawing tool than a cad tool.
You know you have a good or half decent EE cad tool when you can cross-probe or highlight nets/comps between the schematic and layout. Kind of where I draw my line.
I was looking further yesterday and recall a series of articles in Elektor mag of late detailing the use of the DesignSpark toolset, written by Neil Gruending. The series starts in the June 2013 issue and is still going in July 2015, which is installment #20, so it is very well documented.
DesignSpark is free and has none of the limits(pcb size, pin/page limits) that Eagle or Diptrace have for their free tools.
I myself have not used DesignSpark yet but it does look very encouraging. Neil seems to be a very knowledgeable EE, so if he endorses the tool I would have to say it is worth trying it out.
Cheers
Rick
Last edited:
oh I see you modified the main connection with faston type really nice Terry 🙂
man if I was no so short in money I be ordering the updated PCB F100 I made a from the original files that mister Mile post #12 and I think is an awesome amplifier to have in my/your collections guys 🙂
man if I was no so short in money I be ordering the updated PCB F100 I made a from the original files that mister Mile post #12 and I think is an awesome amplifier to have in my/your collections guys 🙂
Attachments
Last edited:
Hi Juan,
Yes, I like the fastons because my amps usually only see the bench so it is easier to use the fastons rather than having wires hanging off the board. I have lots of jumper cables with female faston connecstors.
Blessings, Terry
Yes, I like the fastons because my amps usually only see the bench so it is easier to use the fastons rather than having wires hanging off the board. I have lots of jumper cables with female faston connecstors.
Blessings, Terry
Well my parts came in so the FX100 is singing. Sounds lovely as expected. I had to set the bias up to at least 40mA to get rid of the crossover node. I installed a 5k pot in place of the 4k7 resistor and I think it is at about 2k5 right now. I had one issue when I hooked up both channels together for the first time I forgot to attach the left channel input and blew two outputs before the fuse blew. It doesn't like running with the input open. I replaced the outputs and all is good. I cheated a little and attached a jumper wire on the bottom of the board to attach signal ground to power ground so I didn't have to worry about running a separate wire to star right now. If the amp ever makes it to a case I will probably run it right. The amp is dead quiet.
Blessings, Terry
Blessings, Terry
Attachments
Hi Juan,
I haven't put on the big system yet but it sound really good through the test speakers. I'll hook it to the A/B later today and let you know.
Blessings, Terry
I haven't put on the big system yet but it sound really good through the test speakers. I'll hook it to the A/B later today and let you know.
Blessings, Terry
Hi Juan,
I got a chance to hook it up the the A/B setup. It is virtually indistinguishable from the VSSA. Very, very nice. It has higher gain than the VSSA. No need for a preamp at all.
Very worth building. I'll post the etching files if anyone is interested.
Blessings, Terry
I got a chance to hook it up the the A/B setup. It is virtually indistinguishable from the VSSA. Very, very nice. It has higher gain than the VSSA. No need for a preamp at all.
Very worth building. I'll post the etching files if anyone is interested.
Blessings, Terry
Yup, that was my finding. BTW, Mile, what rail voltage do you suggest is best. I'm using +-50vdc but have other options.
Thanks, Terry
that is wonderful Terry 🙂 yes good idea to post PDF file is some one want to try out
I do have the file but the one you edit you place those faston male connectors is better 
Best Regards
Juan
that is wonderful Terry 🙂 yes good idea to post PDF file is some one want to try out
Best Regards
Juan
Hi Juan,
I'm attaching the iron transfer pdf.
Hi Mile. OK that's good to know.
Thanks, Terry
Yes, if you look in the picture in post #486 you will see that I fly it on wires and mount it on top of one of the outputs, ala SKA GB150.
i'm sorry, i haven't seen that picture - i downloaded pdf from few posts ago and than commented. i am browsing internet over my mobile lately, so i can not see much detailes from pictures in posts.
.
thank you both for the pcb/layout and checking schematic!
.
thank you both for the pcb/layout and checking schematic!