37,101
edits
Delay relay: Difference between revisions
m
no edit summary
(Created page with "Several tube-era Tektronix oscilloscopes such as the 549, 581 and 585 contain a circuit that delays turn-on of the main high voltage supplies until the tubes are w...") |
mNo edit summary |
||
| Line 1: | Line 1: | ||
Several tube-era Tektronix oscilloscopes such as the [[549]], [[581]] and [[585]] contain a circuit that delays turn-on of the main | Several tube-era Tektronix oscilloscopes such as the [[549]], [[581]] and [[585]] contain a circuit that delays turn-on of the main supply voltages until the tubes are warmed up. | ||
A main relay that switches the anode voltages is controlled by a '''thermal delay relay''' such as the 6N045 or 6N030 which is housed in a miniature 9-pin glass tube enclosure. | A main relay that switches the anode voltages is controlled by a '''thermal delay relay''' such as the 6N045 or 6N030 which is housed in a miniature 9-pin glass tube enclosure. | ||