155-0078-00: Difference between revisions
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The '''155-0078-xx''' is a Tek-made broadband vertical amplifier integrated circuit in a [[minipac]] package. | The '''155-0078-xx''' is a Tek-made broadband vertical amplifier integrated circuit in a [[minipac]] package. | ||
The input and output are differential. | The input and output are differential. It uses the "[[Transit frequency doubler|f<sub>t</sub> doubler]]" circuit invented by [[Carl Battjes]]. | ||
The 155-0078 was designed by [[John Addis]] for the [[485]] scope <sup>(Note 1)</sup>, which uses no less than 18 of these chips in various grades. | |||
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Revision as of 04:36, 28 November 2015
The 155-0078-xx is a Tek-made broadband vertical amplifier integrated circuit in a minipac package. The input and output are differential. It uses the "ft doubler" circuit invented by Carl Battjes.
The 155-0078 was designed by John Addis for the 485 scope (Note 1), which uses no less than 18 of these chips in various grades.
| SUFFIX | SPEED | DC CHARACTERISTICS | REPLACEABLE BY |
|---|---|---|---|
| 00 | Fast | Best | ---- |
| 01 | Fast | Third best | -03,-00 |
| 02 | Fast | Most relaxed | -01,-03,-00 |
| 03 | Fast | Second best | -00 |
| 04 | Slow | Same as -00 | -00 |
| 05 | Slow | Same as -01 | -03,-00,-07,-04 |
| 06 | Slow | Same as -02 | -01,-03,-00,-05,-07,-04 |
| 07 | Slow | Same as -03 | -00,-04 |
| 10 | Fast | Best | ---- |
| 11 | Fast | Third best | -13,-10 |
| 12 | Fast | Most relaxed | -11,-13,-10 |
| 13 | Fast | Second best | -10 |
| Sometimes an instrument will contain a better grade of part than called for in the manual.
The manual should be consulted for the correct replacement type. | |||
Pictures
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Excerpt from 067-0587-01 schematic, showing application of 155-0078-00.
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155-0078-01 amplifiers in 7A26. Note symmetric layout.
Used in
Notes
- Note 1: See John Addis quote in 7A11 article