Real German Speaker Fully Original Vintage Speaker employed in Vintage Cinema Hall in 1930's in Germany with Power tube Amplifiers of best audio quality. This is the right choice for your project Do It Yourself with Your power amplifier System with Direct Heater Triode DHT. Speaker Klangfilm fieldcoil 8" = 20 CENTIMETERS TESTED COILS = 944 + 470 OHM & 2.8 OHM HIGH QUALITY SUSPENSIONS phenolic spider SEE PICTURES Fully Tester and perfect working conditions Test Results as per pictures tube valve lampe röhre tsf 진공관 真空管 HAM RADIO audio hi-end hi-fi diy POWER AMPLIFIER roehre Pre-Amplifier Preamp Pri VINTAGE stereo SE Single Ended PP Push-Pull VACUUM TUBES röhren roehre vorverstärker röhrenverstärker preamp preamplifier roehre röhre nos nib tube ovp röhren full range voice coil field coil turntable