|   Germany (??) Vacuum Tube Manufacturer - RSD | jctc
May 20, 2003 6:56 PM | | I have a few new in box KT88, ECC88 and 6L6 tubes made by "RSD" but cannot get much info of this manufacturer.
Does any one know about the history of this Germany (??) Vacuum Tube manufacturer called "RSD" ???? |
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