Xara3d6-Hanging

**Soquili** · 20 January 2008, 07:59 PM

Sorry Steve. I was off on the wrong tack. A variance of +5 volts would be excessive.

Some old equipment I worked with had very high tolerance for voltage flucuations, but not that much

**steve.ledger** · 20 January 2008, 08:02 PM

Yes that should have read +/- .5v (damn my typos

)

**handrawn** · 20 January 2008, 08:13 PM

Thanks Steve

Bill - I used to have a themonic valve 'HiFi' rig - I still think they sound best - but getting replacement KT's was becoming a problem, however +/- 5V would not have been

**Scotty** · 20 January 2008, 11:54 PM

Hi All,
Thanks to all that submitted suggestions to start with. I remedied the problem and had to reo all my settings.
Apparently when I have some maintenance done on my machine the store setup a new administrator as well as myself. Xara3D6 was under that new adminstrator so I had to copy all his stuff to my adminsistrator and now everything works. (so far)
What a pain in the U know What.
Thanks again for all advice.
Jim

**steve.ledger** · 21 January 2008, 12:00 AM

Aha - it's all in the details

Glad it's sorted for you. At least the problem wasn't X3D itself after all.

**Soquili** · 21 January 2008, 01:55 AM

Glad you have it sorted Jim.

Steve J. I liked the old thermionic valve amplifiers, they have a larger linear range. Analog transistor circuits require more stages which add more distortion. Digital transistor circuits introduce quantising distortion.

**handrawn** · 21 January 2008, 05:30 AM

Bit of a pain Jim as you say - would be nice if they'd made that clear to you at the time - glad its sorted.

Bill - yes, I prefer a good well balanced valve amp. Power amp only had two stages - triode driving a KT per channel. Preamp had a double triode per channel. The only semiconductor amp that could match it was a Class A transistor amp - again the power amp had few stages just 3 npn transistors per channel: lownoise highgain input - driver - power. Diostortion very low on a Class A, but power consumption and heat output on the high side - heatsinks you could sink a battleship with

EDit - the power transistors may have been doubled up to run in parallel as one per channel - memory a bit sketchy - I shall have to look it up..