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{museum features} Mullard | equivalentsarticles
collections G8LSD Valve Collection |
The T25D from Mullard is a directly heated triode.
The T25D has glass top supports and no mica supports. The filament voltage is 6.0 Volts and the maximum anode voltage is given as 500 Volts.
With the carbonised anode box seen in side elevation, the sturdy mounting supports are visible. These rod supports are attached to a band that clamps onto the pinch near the base.
The inverted 'V's of the oxide covered filament run inside the flattened control grid that runs parallel to the anode bod on the broad face.
The balloon envelope is 67 mm in diameter and, excluding the B4 base pins, is 143 mm tall.
This exhibit was last updated on 30 June 2006
The T25D has glass top supports and no mica supports. The filament voltage is 6.0 Volts and the maximum anode voltage is given as 500 Volts.
With the carbonised anode box seen in side elevation, the sturdy mounting supports are visible. These rod supports are attached to a band that clamps onto the pinch near the base.
The inverted 'V's of the oxide covered filament run inside the flattened control grid that runs parallel to the anode bod on the broad face.
The balloon envelope is 67 mm in diameter and, excluding the B4 base pins, is 143 mm tall.
This exhibit was last updated on 30 June 2006
With the carbonised anode box seen in side elevation, the sturdy mounting supports are visible. These rod supports are attached to a band that clamps onto the pinch near the base.
The inverted 'V's of the oxide covered filament run inside the flattened control grid that runs parallel to the anode bod on the broad face.
The balloon envelope is 67 mm in diameter and, excluding the B4 base pins, is 143 mm tall.
This exhibit was last updated on 30 June 2006
The inverted 'V's of the oxide covered filament run inside the flattened control grid that runs parallel to the anode bod on the broad face.
The balloon envelope is 67 mm in diameter and, excluding the B4 base pins, is 143 mm tall.
This exhibit was last updated on 30 June 2006
The balloon envelope is 67 mm in diameter and, excluding the B4 base pins, is 143 mm tall.
This exhibit was last updated on 30 June 2006
This exhibit was last updated on 30 June 2006 |