E

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Tektronix Type E
Differential amplifier
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Compatible with 500-series scopes

Produced from 1955 to 1969

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix Type E is a low-level differential amplifier plug-in for 500-series scopes. The sensitivity ranges from 50 μV/div to 10 mV/div. The input is an XLR connector feeding directly into the grids of a 12AX7 differential amplifier.

Despite the DC-coupled input stage, the Type E is an AC-coupled amplifier. It has front panel knobs for selecting the low-frequency and high-frequency cutoff. It achieves a 50,000 to 1 common mode rejection ratio. Maximum bandwidth is 60 kHz. It has seven tubes, three of which are on a shock-mounted subchassis.

The Type 53E/54E was introduced in 1955. Along with Types G and K, it was the first plug-in offered after, not during, the original 531/535 introduction in 1954. The nomenclature was revised after just a few months, to 53/54E. In 1959, when the A-suffix mainframes came out, all plugins dropped the "53/54". Type E was dropped after 1968; its replacement, Type 1A7, had been available for a few years.

Links

Pictures


Some Parts Used in the E

Part Part Number(s) Class Description Used in
0B2 154-0075-00 Gas Discharge Tube (Voltage regulator) 105-108 V voltage reference 190 E Hickok 1825
12AU7 154-041 154-0041-00 154-0287-00 Vacuum Tube (Dual Triode) dual medium-μ triode 104 104A 122 160 161 162 181 190 310 310A 316 317 3C66 502 502A 507 511A 512 516 517 517A 524 526 535 536 545 545A 545B 547 549 555 561 564 570 575 581 581A 585 585A C D E N Q Hickok 1825
12AX7 154-043 154-0043-00 Vacuum Tube (Dual Triode) dual triode 3C66 513 524 531 531A 535 536 545 545A 545B 546 547 549 555 570 581 581A 585 585A E Q Hickok 1825
5751 154-0094-00 Vacuum Tube (Dual Triode) dual triode E
5879 154-0055-00 Vacuum Tube (Pentode) sharp-cutoff pentode 112 512 D E Hickok 1825