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(New page: It is a pulse generator using an GR-874 50-ohm output connector and has a specified rise time of 250ps. Pulse width can be programmed with a external 50 Ohm cable through two GR-874 50-ohm...) |
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It is a pulse generator using an GR-874 50-ohm output connector and has a specified rise time of 250ps. Pulse width can be programmed with a external 50 Ohm cable through two GR-874 50-ohm connectors. | It is a pulse generator using an GR-874 50-ohm output connector and has a specified rise time of 250ps. Pulse width can be programmed with a external 50 Ohm cable through two GR-874 50-ohm connectors. | ||
The special feature of the device is, that the switching action is made directly be a mercury-reed contact. Frequency and life time was therefore fairly short. About 600Hz and 200 hours. So, forget to shut down over weekend and some holy-days, needet a replacement of the reed switch. | The special feature of the device is, that the switching action is made directly be a mercury-reed contact. Frequency and life time was therefore fairly short. About 600Hz and 200 hours. So, forget to shut down over weekend and some holy-days, needet a replacement of the reed switch. Be aware during servicing, the thermal breaker is on full mains and has no protection cover! | ||
If there are some spare reed/contacts, please let me know. ;-) | If there are some spare reed/contacts, please let me know. ;-) | ||
<gallery> | |||
Image:109_front.jpg|Front view | |||
Image:109_right.jpg|Right internal | |||
Image:109_left.jpg|Left internal | |||
Image:109_back.jpg|Rear view | |||
</gallery> | |||
Revision as of 11:45, 5 April 2010
It is a pulse generator using an GR-874 50-ohm output connector and has a specified rise time of 250ps. Pulse width can be programmed with a external 50 Ohm cable through two GR-874 50-ohm connectors.
The special feature of the device is, that the switching action is made directly be a mercury-reed contact. Frequency and life time was therefore fairly short. About 600Hz and 200 hours. So, forget to shut down over weekend and some holy-days, needet a replacement of the reed switch. Be aware during servicing, the thermal breaker is on full mains and has no protection cover!
If there are some spare reed/contacts, please let me know. ;-)
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Front view
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Right internal
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Left internal
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Rear view
