In article , Fleetie
wrote:
"Arny Krueger" wrote
"The biggest problem with the amps is poor current haring between the
output triodes. All 4 need to be matched closely to prevent failures.
Initial matching on the bench ensures initial reliability."
A hearty DOOOH! to that!
**** me. It must be a **** design then.
Do you design a transistor circuit making assuptions about h_FE?
Yes. I assume it will vary over a range bigger than written in the
databook, and slug the value accordingly. :-)
Slainte,
Jim
--
Electronics
http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Audio Misc
http://www.st-and.demon.co.uk/AudioMisc/index.html
Armstrong Audio
http://www.st-and.demon.co.uk/Audio/armstrong.html
Barbirolli Soc.
http://www.st-and.demon.co.uk/JBSoc/JBSoc.html