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4 tube ED TUBE VALVO MONO PLATE DIRECT HEATER TRIODE 60mA 100% DHT POST SIEMENS  #Valvo

4 tube ED TUBE VALVO MONO PLATE DIRECT HEATER TRIODE 60mA 100% DHT POST SIEMENS #Valvo

1X tube MARCONI MT16 DHT DIRECT HEATER TRIODE PIP ENGLAND TRANSMITTING JE 5008 #MARCONIWIRELESSTELEGRAPH

1X tube MARCONI MT16 DHT DIRECT HEATER TRIODE PIP ENGLAND TRANSMITTING JE 5008

1X tube MARCONI MT16 DHT DIRECT HEATER TRIODE PIP ENGLAND TRANSMITTING JE 5008 #MARCONIWIRELESSTELEGRAPH

1X TUBE 845 RCA RADIOTRON DIRECT HEATER TRIODE POWER DHT 65-52 8 4 5 STRONG!! #RCARADIOTRON

1x tube 845 rca radiotron direct heater triode power dht 65-52 8 4 5 strong

1X TUBE 845 RCA RADIOTRON DIRECT HEATER TRIODE POWER DHT 65-52 8 4 5 STRONG!! #RCARADIOTRON

1X tube Siemens & Halske Ca triode DHT NOS NIB PIP TOP METAL BASE TEST 20ma !!! | eBay

1X tube Siemens & Halske Ca triode DHT NOS NIB PIP TOP METAL BASE TEST 20ma

1X tube Siemens & Halske Ca triode DHT NOS NIB PIP TOP METAL BASE TEST 20ma !!! | eBay

# TUBE DA SIEMENS & HALSKE # PIP TOP # NOS # VALVE DA # POSTAL # RARE # DHT D A

# tube da siemens & halske # pip top # nos # valve da # postal # rare # dht d a

ONE tube siemens Ca triode DHT NOS NIB PIP TOP RED LABEL DA CA BA AA E2D OBE AD1 #SIEMENS

ONE tube siemens Ca triode DHT NOS NIB PIP TOP RED LABEL DA CA BA AA E2D OBE AD1 #SIEMENS

Western Electric 300B. The most over-hyped audio tube. Originally designed for reliability in telephone modulation circuits, it was used briefly in early movie sound amplifiers (1920s). Audiophiles somehow think it sounds superb. Stereo telephone, anyone?

Western Electric 300B. The most over-hyped audio tube. Originally designed for reliability in telephone modulation circuits, it was used briefly in early movie sound amplifiers (1920s). Audiophiles somehow think it sounds superb. Stereo telephone, anyone?

2 tube 45 RCA RADIOTRON 245 345 BALLOON DHT ENGRAVED BASE TEST 75/78 (47=100%) #RCARADIOTRON

2 tube 45 RCA RADIOTRON 245 345 BALLOON DHT ENGRAVED BASE TEST 75/78 (47=100%)

2 tube 45 RCA RADIOTRON 245 345 BALLOON DHT ENGRAVED BASE TEST 75/78 (47=100%) #RCARADIOTRON

3x tube MATCHED RE074 TELEFUNKEN DIRECT HEATER TRIODE RE 074 TEST 9mA (4.4=100%) | eBay

3x tube MATCHED RE074 TELEFUNKEN DIRECT HEATER TRIODE RE 074 TEST 9mA (4.4=100%)

3x tube MATCHED RE074 TELEFUNKEN DIRECT HEATER TRIODE RE 074 TEST 9mA (4.4=100%) | eBay

2X TELEFUNKEN RS237 # NOS TUBE # TRIODE DHT # 60mA (25= 100%) RS 237 PAIR 211  #TELEFUNKEN

2# TELEFUNKEN # RS237 # NOS TUBE # TRIODE DHT # 60mA (25= 100%) RS 237 PAIR 211

2X TELEFUNKEN RS237 # NOS TUBE # TRIODE DHT # 60mA (25= 100%) RS 237 PAIR 211 #TELEFUNKEN

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