| Brand | SYLVANIA |
|---|---|
| Type | NOS Tube |
| Model | 7791 |
Check the listing for details. Vintage radio/electronics Tung Sol 7791 high voltage hydrogen diode. Condition: Used. Listed at 39.00 USD. One Tung Sol 7791 hydrogen diode ( I believe, this isn't my area of expertise). Has been in storage for decades.
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