8056: Difference between revisions

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[[File:Nuvistor 8056.jpg |thumb|350px|right|Nuvistor 8056]] The '''8056''' is a low-voltage [[Nuvistor]] triode with a 6.3 V heater.  
[[File:Nuvistor 8056.jpg |thumb|350px|right|Nuvistor 8056]] The '''8056''' is a low-voltage [[Nuvistor]] triode with a 6.3 V heater.  


It is used in the [[10A1]], [[422]] and the [[5T3]]. It can sometimes be replaced with a [[MPF102]] FET.
It is used in the [[10A1]], [[422]] and the [[5T3]].
It can sometimes be replaced with a [[MPF102]] FET.
 
The 8056 has a maximum plate-to-cathode voltage of 50V.
Contrast this with another Nuvistor triode, the [[7586]],
which has a maximum plate-to-cathode voltage of 110V.
The 7586 and 8056 have the same pinout,
but the two tubes are not interchangable
since they have different voltage ratings.
For example, in the front-end differential amplifiers
of the [[3A1]], the plate voltage of the 7586 tubes, V113 and V123, is 55 V,
and possibly a bit higher during warm-up.
This exceeds the maximum plate voltage of the 8056,
unless the 3A1 is modified for lower front-end plate voltages.


==Links==
==Links==

Revision as of 12:18, 15 July 2018

Nuvistor 8056

The 8056 is a low-voltage Nuvistor triode with a 6.3 V heater.

It is used in the 10A1, 422 and the 5T3. It can sometimes be replaced with a MPF102 FET.

The 8056 has a maximum plate-to-cathode voltage of 50V. Contrast this with another Nuvistor triode, the 7586, which has a maximum plate-to-cathode voltage of 110V. The 7586 and 8056 have the same pinout, but the two tubes are not interchangable since they have different voltage ratings. For example, in the front-end differential amplifiers of the 3A1, the plate voltage of the 7586 tubes, V113 and V123, is 55 V, and possibly a bit higher during warm-up. This exceeds the maximum plate voltage of the 8056, unless the 3A1 is modified for lower front-end plate voltages.

Links