| Brand | Svetlana |
|---|---|
| Type | Vacuum Tube |
| Unit Type | Unit |
| Vintage Soviet Vacuum Tube | Audio amplifier tube |
| Equivalent | 4cx800 |
| Model | GU-74B |
| Country/Region of Manufacture | Unknown |
| Unit Quantity | 1 |
Check the listing for details. Tetrode tube GU-74B Vacuum Tube GU74B Radio amplifier vaccum eq 4CX800A PERFECT. Condition: New. Listed at 235.00 USD. The GU-74B, also known as the 4CX800A, is a high-performance tetrode tube renowned for its excellence in RF power amplifiers like Alpha 99, 91B, 8100, and ACOM 1000, 1006, 1010, and 2000A. Key Specifications.
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