Seeking a free Electronic Circuit Analysis Program - for Vacuum Tubes

Hi All;

I live in Australia and also new to this forum. I'm seriously interested in getting a copy of an Electronics Circuit Analysis Program for drawing Vacuum Tube circuits ( Audio Amplifiers ). It does not have to be the latest edition, but as I am unemployed I cannot afford the luxury of a $5,000 dollar program such as Microcap 9 ( by Spectrum software ) or similar.

I am running Windows XP ( 256MB RAM, 2.4 Ghz Processor & 80Gb HDD) on my computer, so an older program should suffice. If you can help, please email me at my address below.

Thanks & Cheers;

There are several websites offering SPICE models of many tubes. Use the search terms "spice model" and "vacuum tube" with your favorite search engine.

Maybe some member could tell you where to find a copy of a
( R.C.A) tube manual.They use to publish the manual every year,try ebay. The manual give's tube number's and application's,with a curcuit diagram.

Loosewire, how would such a manual help with simulation or software-based analysis?