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Does anyone know how to tell if an ECC83 tube has been manufactured by RFT? Does anyone know their factory code(s)? Thanks.
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Topic - RFT factory codes - Marshall George 09:18:40 03/20/06 (2)
- Re: RFT factory codes - RM 04:20:23 03/21/06 (1)
- Re: RFT factory codes - Marshall George 08:41:49 03/22/06 (0)