The amazing thing abut that is that the aircraft never new it was upside-down. It was a perfect 1G roll (no change in the gravity vector). It was impressive to see, though not so once the physics are understood. "Tex" Johnson was "suspended" (he ws reinstated after promising never to do it again) for doing something "that dangerous", but the Dash-80 (the
707 prototype) didn't care a bit.-- Keith
....and for those who don't have the patience for automated pages which mess around without telling you what they're doing or for those who don't bother with proprietary video formats: Be warned--it's 707_roll_video.wmv.
Hello Sampei,
If you can't find much on the web there are still several options:
a. Obtain a really old ARRL Handbook, at least 30 years old. Lots of tube amp schematics in those.
b. Look at the schematics of the Drake TR-4 ham radio transceiver. It used to be very widespread in the 70's and used a 6AQ5 for the receiver audio.
c. I believe the Gibson Skylark tube guitar amps also used it.
d. If you find a large public library somewhere that doesn't throw out older books they might have something, too. Probably only in big cities.
Regards, Joerg
Right.
John
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