Re: 7704a repair adventure
Back in the day...the -269 was a cut above anything elsetoggle quoted messageShow quoted text
in it's class. Compared to most any other transistor
you could find, it had lower C, faster transient response,
low saturation, very linear gain vs current vs voltage
curves. And it really liked to amplify without oscillating.
And it was cheap.
Because of all that, it was a very popular transistor at TEK.
Remember that there are a bunch of time constants in the vertical
to compensate thermal time constants in the devices.
If you can find a pair anywhere else in the scope, or in
some less critical application in a plugin, I suggest you use real
-269s in the vertical and sub the other application that
doesn't show up directly on the screen as vertical deflection.
--- In TekScopes@yahoogroups.com, "Craig Sawyers" <c.sawyers@t...> wrote:
I've just had a browse around, and anything of that spec in a TO92 packagehere are the characteristics: