Shuguang Vacuum Tube 813 For Tube Amplifier Replace FU13 High Power – IWISTAO HIFI MINIMART
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Pair of RCA Red Logo 813 Vacuum Tubes - Used (Item: RDW-141) - Radio Daze LLC
2 X 813 TUBE. MARCONI BRAND TUBE. USED GOOD TUBE. 2 PCS. RCB310
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1 RCA JAN CRC 813 Vacuum Tube 200 Watt PEP Power Pentode for Radio Transmitters | eBay
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HF 813 Linear Amplifier | Jet Propulsion
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