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6AL5: Difference between revisions
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The '''12AL5''' (European type '''HAA91''') is the same but has a 12.6 V, 0.15 A heater. Both have a {{B9A base}}. | 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 "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]]. | The 6AL5/12AL5 serves 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]]. | ||
Tektronix part number: 154-0016-00 (6AL5), 154-0038-00 (12AL5/HAA91) | Tektronix part number: 154-0016-00 (6AL5), 154-0038-00 (12AL5/HAA91) | ||