I inherited old RFT 6401 Cascada speakers. These are from east Germany produced in 1988 and I'm hardly familiar with audio technology. At that time, the speakers were probably expensive and very
1 x PL36 RFT Germany NOS Beam Power Output Pentode Tube Lampe BOX | eBay
RFT B150 4 WAY GERMAN AUDIOPHILE SPEAKERS Photo #602389 - US Audio Mart
Microphone Boutique - Stereo Matched Pair! Vintage RFT MV201 with handmade AEG tube modification. They're classic, boutique,handmade, German, matched,restored,modified all in one. $1119 for the pair! | Facebook
Best Value Pair) EL34 East Germany RFT branded AEG NOS 1970's (75ma and 79.2ma)