39,728
edits
7A19: Difference between revisions
no edit summary
(update fuse part number) |
No edit summary |
||
| Line 34: | Line 34: | ||
The manual explains that the motivation for using two fuses in parallel is | The manual explains that the motivation for using two fuses in parallel is | ||
to minimize the effect of the series impedance of the fuses. | to minimize the effect of the series impedance of the fuses. | ||
The fuse part number in the manual (Littelfuse 279-100) appears to be wrong since the MICRO 279 series fuse has 25. | The fuse part number in the manual (Littelfuse 279-100) appears to be wrong since the MICRO 279 series fuse has 25.4 mm long pins. | ||
The correct replacement fuse is Littelfuse 273-100 which comes in a box of 5 labeled "MICRO 1/10A 273", it has 4. | The correct replacement fuse is Littelfuse 273-100 which comes in a box of 5 labeled "MICRO 1/10A 273", it has 4.32 mm long pins. | ||
The only active device in the vertical signal path of the 7A19 is an [[155-0068-00]] amplifier hybrid, (U40, Tek internal part number H101). | The only active device in the vertical signal path of the 7A19 is an [[155-0068-00]] amplifier hybrid, (U40, Tek internal part number H101). | ||
A second | A second 155-0068-00 is used in the trigger signal path of the 7A19, which is almost identical to the vertical signal path. | ||
The 7A19 uses the ±50 V supplies provided by the mainframe. | The 7A19 uses the ±50 V supplies provided by the mainframe. | ||