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The Tektronix 160 series is a modular oscilloscope made from the mid 1950's | The '''Tektronix 160 series''' is a modular oscilloscope made from the mid 1950's | ||
(schematics drawn in [[introduced in 1953|1953]]) to the late 1960's (in 1969 catalog). | (schematics drawn in [[introduced in 1953|1953]]) to the late 1960's (in 1969 catalog). | ||
A 160 series system typically includes a Type 160 power supply, | A 160 series system typically includes a Type 160 power supply, | ||
a [[360|Type 360 indicator unit]], | a [[360|Type 360 indicator unit]], and one or more of the | ||
and one or more of the [[161]], [[162]], and [[163]] trigger and sweep modules. | [[161]], [[162]], and [[163]] trigger and sweep modules. | ||
Each module is the size of a small shoe box. | |||
Power connections are made behind the modules using [[W160|Type W160]] cables that have | Each module is the size of a small shoe box. Power connections are made behind | ||
[[connectors|octal connectors]]. | the modules using [[W160|Type W160]] cables that have [[connectors|octal connectors]]. | ||
The power cables can be connected in a star topology (Type 160 in the center) | The power cables can be connected in a star topology (Type 160 in the center) | ||
or can be daisy-chained using the loop-through connection on the back of each module. | or can be daisy-chained using the loop-through connection on the back of each module. | ||
Signal connections are made on the front, typically with banana plugs. | Signal connections are made on the front, typically with banana plugs. | ||
The 160, 161, 162, and 163 use the ceramic strip and silver solder construction style | |||
The 160, 161, 162, and 163 use the ceramic strip and silver solder construction style that | |||
is prevalent in other Tektronix equipment of the era, such as the 500-series scopes like the [[545]]. | |||
The Type 360 indicator unit contains the CRT HV power supply and the vertical amplifier | The Type 360 indicator unit contains the CRT HV power supply and the vertical amplifier | ||
and is constructed using a single-sided printed circuit board. | and is constructed using a single-sided printed circuit board. | ||
In a typical setup, the input signal is fed through a splitter | In a typical setup, the input signal is fed through a splitter to the Y-input of the | ||
to the Y-input of the 360 and the trigger input of the 161. | 360 and the trigger input of the 161. The 161 generates a trigger pulse that controls a 162, | ||
The 161 generates a trigger pulse that controls a 162, | which generates the horizontal ramp for the sweep. This ramp signal is sent to the 360 horizontal input. | ||
which generates the horizontal ramp for the sweep. | |||
This ramp signal is sent to the 360 horizontal input. | |||
The signals on the front panel of the 160-series modules are all single-ended. | The signals on the front panel of the 160-series modules are all single-ended. | ||
==Internals== | |||
The 360 has a phase splitter to generate the differential drive for the horizontal deflection plates. | The 360 has a phase splitter to generate the differential drive for the horizontal deflection plates. | ||
The 360 uses a standard [[3WP|3WP series 3-inch CRT]]. | The 360 uses a standard [[3WP|3WP series 3-inch CRT]]. | ||
The cathode voltage is - | The cathode voltage is -1850 V. No post-deflection acceleration is used. | ||
The 160 power supply was produced with serial numbers 101-619. | The 160 power supply was produced with serial numbers 101-619. | ||
For serial numbers 620 and up, it is slightly different and is called the 160A. | For serial numbers 620 and up, it is slightly different and is called the 160A. | ||
The 160 and 160A both use a [[5V4]] rectifier tube for the negative voltage | The 160 and 160A both use a [[5V4]] rectifier tube for the negative voltage | ||
and two 5V4 tubes in parallel for the positive voltage. | and two 5V4 tubes in parallel for the positive voltage. | ||
Both use [[5651]] 87-volt reference tubes. | Both use [[5651]] 87-volt reference tubes. | ||
The 160 and 160A differ in their output regulator circuits. | The 160 and 160A differ in their output regulator circuits. | ||
The 160 uses a [[6AS7]] dual-triode tube, one half to regulate the +225V output | The 160 uses a [[6AS7]] dual-triode tube, one half to regulate the +225V output | ||
Line 39: | Line 46: | ||
<gallery> | <gallery> | ||
File:Tek 160 dn1.jpg|photo courtesy of Dave Nicol | |||
File:Tek 160 dn2.jpg|photo courtesy of Dave Nicol | |||
File:Tek 160 schem.png|160 schematic | |||
File:Tek 160a schem.png|160A schematic | |||
</gallery> | </gallery> | ||
[[Category:Introduced in | [[Category:Introduced in 1955]] | ||
[[Category:160 system]] |