6AL5: Difference between revisions

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The 6AL5 is a high-perveance dual-diode tube.  It is used in the [[C]], [[CA]].  
[[File:6AL5_Tube.jpg|thumb|300px|right|6AL5 Tube]]
The 6AL5 serves as the disconnect diodes in the sweep circuits of many Tek products
{{Vacuum Tube
starting with the the [[511]] in the 1940's and continuing through the 1960's in sweep
|Type=Dual Diode
plug-ins such as the [[3B2]].
|Number=6AL5/12AL5
|EuroNumber=EAA91/EB91/HAA91
|Part_nos=154-0016-00, 154-0038-00
|Description=[[wikipedia:Perveance|high-perveance]] dual diode
|Used_in=163;181;190;1M1;310;310A;315;316;317;502;502A;503;511;511A;512;516;517;517A;524;526;535;535A;545;545A;549;581;581A;585;585A;551;C;T;Telequipment S52
|Designers=
}} with a 6.3 V, 0.3 A heater.
<br />
The '''12AL5''' (European type '''HAA91''') is the same but has a 12.6 V, 0.15 A heater.  Both have a {{B9A base}}.


* [http://w140.com/6AL5.pdf RCA 6AL5 Datasheet (PDF)]
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 [[C|Type C]]/[[CA|Type CA]].
 
Tek part number: 154-0016-00 (6AL5), 154-0038-00 (12AL5/HAA91)
 
{| class="wikitable"
{{Checkedtubes TableHeader}}
|-
|  [[535A]], [[545A]], [[585A]] || 157-0075-00 (12AL5)  || All
|-
|  [[316]], [[317]], [[502A]], [[516]] || 157-0104-00 (6AL5)  || All
|-
|  53X, 54X series, [[551]], [[580-series_scopes|580]] || 157-0104-02 (6AL5)  || All
|}
 
{{Tube aging reference}}
 
==Data and Links==
* System: max. 420 V peak, max. 9 mA, 2.5 pF
* [https://w140.com/6AL5.pdf RCA 6AL5 Datasheet (PDF)]
* [https://www.radiomuseum.org/tubes/tube_6al5.html 6AL5] / [https://www.radiomuseum.org/tubes/tube_12al5.html 12AL5] @ radiomuseum.org
 
[[Category:Diode tubes]]

Revision as of 14:33, 12 February 2023

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