Vacuum Tube - 81, Rectifier, ST Glass
New-Old-Stock (NOS) tube.
The 81 is a half-wave high-vacuum rectifier which may be used with either choke or condenser input to the filter.
Note: brands may vary. Photo is for reference only and may not exactly represent final product received.
Packaging Dimensions | 3 in. × 3 in. × 7 in. | ||
Weight (Packaging) | 0.1918 lbs. |
NOS Tube Specification Sheet | All Models |
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