6AL5: Difference between revisions

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|Part_nos=154-0016-00, 154-0038-00
|Part_nos=154-0016-00, 154-0038-00
|Description=[https://en.wikipedia.org/wiki/Perveance high-perveance] dual diode
|Description=[https://en.wikipedia.org/wiki/Perveance high-perveance] dual diode
|Used_in=181;316;317;502;502A;511;511A;516;535A;545A;549;581;581A;585;585A;551;Telequipment S52
|Used_in=181;316;317;502;502A;511;511A;516;535A;545;545A;549;581;581A;585;585A;551;Telequipment S52
|Designers=
|Designers=
}} with a 6.3 V, 0.3 A heater.
}} with a 6.3 V, 0.3 A heater.

Revision as of 05:55, 11 October 2021

6AL5 Tube

The 6AL5/12AL5  (European: EAA91/EB91/HAA91) (P/N 154-0016-00, 154-0038-00) is a high-perveance dual diode vacuum tube with a 6.3 V, 0.3 A heater.
The 12AL5 (European type HAA91) is the same but has a 12.6 V, 0.15 A heater. Both have a B9A (Noval) miniature 9-pin base.

The 6AL5/12AL5 serves as the as the "disconnect diode" in the timebase circuit of many tube-era Tektronix scopes starting with the 511 in the 1940s and continuing through the 1960s in sweep plug-ins such as the 3B2 and other plug-ins such as Type C/Type CA.

Tek part number: 154-0016-00 (6AL5), 154-0038-00 (12AL5/HAA91)

Aged/Checked/Matched Pair Details
Used in Tek Part# S/N Range
535A, 545A, 585A 157-0075-00 (12AL5) All
316, 317, 502A, 516 157-0104-00 (6AL5) All
53X, 54X series, 551, 580 157-0104-02 (6AL5) All

Reference:

Tube aging procedure / Selection and checking procedure

Data and Links