6AL5: Difference between revisions
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[[File:6AL5_Tube.jpg|thumb|300px|right|6AL5 Tube]] The '''6AL5''' (European type '''EAA91''') is a a [https://en.wikipedia.org/wiki/Perveance high-perveance] dual diode vacuum tube with | [[File:6AL5_Tube.jpg|thumb|300px|right|6AL5 Tube]] The '''6AL5''' (European type '''EAA91''') is a a [https://en.wikipedia.org/wiki/Perveance high-perveance] dual diode vacuum tube with 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}}. | ||
The 6AL5/12AL5 serves as the as the "disconnect diode" in the timebase circuit of many tube-era Tektronix scopes starting with the the [[511]] in the 1940's and continuing through the 1960's in sweep plug-ins such as the [[3B2]] and other plug-ins such as [[C|Type C]]/[[CA|Type CA]]. | The 6AL5/12AL5 serves as the as the "disconnect diode" in the timebase circuit of many tube-era Tektronix scopes starting with the the [[511]] in the 1940's and continuing through the 1960's in sweep plug-ins such as the [[3B2]] and other plug-ins such as [[C|Type C]]/[[CA|Type CA]]. | ||
Revision as of 15:54, 4 July 2018
The 6AL5 (European type EAA91) is a a high-perveance dual diode vacuum tube with 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 the 511 in the 1940's and continuing through the 1960's in sweep plug-ins such as the 3B2 and other plug-ins such as Type C/Type CA.
Data and Links
- System: max. 420 V peak, max. 9 mA, 2.5 pF
- RCA 6AL5 Datasheet (PDF)
- 6AL5 / 12AL5 @ radiomuseum.org