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RSD & RFT 12AX7 tubes

People normally deem RFT very good for guitar pre-amps/amps, very good gain, low noise, low microphony. I've never personally tried them yet though.

However, I've found no info on RSDs. Are they good as well? I know both are german and RFT had a conglomerate of industries producing tubes, but not quite sure whether RSD belonged to them as well.

Any advice?


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Topic - RSD & RFT 12AX7 tubes - gusfmm 12:35:17 10/04/04 (0)


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