109: Difference between revisions
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The Tektronix Type 109 is a pulse generator using a | The Tektronix Type 109 is a pulse generator using a | ||
GR-874 50-ohm output connector and has a | [[Connectors#GR-874|GR-874]] 50-ohm output connector and has a | ||
specified rise time of 250ps. Pulse width can be | specified rise time of 250ps. Pulse width can be | ||
programmed with a external 50 Ohm cable through | programmed with a external 50 Ohm cable through | ||
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The internal power supply allows 50Vpk and with ext. PWR max. 300Vpk is possible! | The internal power supply allows 50Vpk and with ext. PWR max. 300Vpk is possible! | ||
The special feature of the 109 is that the switching action is made directly by a mercury | The special feature of the 109 is that the switching action is made directly by a | ||
[[mercury switch]]. Frequency and life time was therefore fairly short, | |||
about 600Hz and 200 hours. | about 600Hz and 200 hours. | ||
So, if the operator forgets to shut the 109 down over the weekend and | So, if the operator forgets to shut the 109 down over the weekend and | ||