7403N: Difference between revisions
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The 7403N was discontinued around 1975, having been superseded largely by the popular [[7603]] introduced in 1973. | The 7403N was discontinued around 1975, having been superseded largely by the popular [[7603]] introduced in 1973. | ||
In 1974, the 7403N had a list price (without plug-ins) of $950. | |||
In the same year, the 7603 was $1600. | |||
{{MissingSpecs}} | {{MissingSpecs}} | ||
Revision as of 15:31, 14 June 2018
The Tektronix 7403N is a 65 MHz oscilloscope mainframe that takes two 7000-series vertical plug-ins and one 7000-series horizontal plug-in. It has a large CRT (8 × 10 divisions @ 1.22 cm each, 154-0640-xx or 154-0672-xx tubes). There is no readout system.
There two versions: the 7403N, which is a benchtop version with the CRT above the plug-ins, and a rackmount version, the R7403N, with the CRT to the left of the plug-ins.
The 7403N was discontinued around 1975, having been superseded largely by the popular 7603 introduced in 1973. In 1974, the 7403N had a list price (without plug-ins) of $950. In the same year, the 7603 was $1600.
Key Specifications
- please add
The 7403N consumes a maximum of 130 watts and uses convection cooling, no fan. It weighs 30 pounds.
Internals
The power supply is a linear design, similar to that of the 7313. The vertical and horizontal amplifiers are made of discrete bipolar transistors. The only integrated circuit in the vertical signal path is U214, the vertical channel switch, a 155-0022-00.
The 7403N uses a CRT anode voltage of 12 kV, produced by a solid state voltage multiplier.
