Philips - B4X61A + Bluetooth - Tube radio






Holds dual bachelor's degrees in electronics and physics with 20 years in audio engineering.
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Description from the seller
A well maintained cabinet, clean and few signs of wear.
The radio is used as a Bluetooth tube amplifier to play music from various BT audio devices.
The Bluetooth adapter is located inside and it has a Li-ion battery charged from local transformer.
The OTL tube amplifier works, but there is no signal on AM/FM, no dial indicator.
Technical Specifications from Radiomuseum.org:
9 Tubes: ECC85, ECH81, EF89, EF85, EM80, EABC80, EL 86, EL84, EZ80.
Main principle: Superheterodyne (common); ZF/IF 452/10700 kHz; 2 AF stage(s)
Tuned circuits: 6 AM circuit(s) 12 FM circuit(s)
Wave bands: Broadcast, Long Wave, Short Wave plus FM or UHF.
Power type and voltage: Alternating Current supply (AC) / 110; 127; 145; 165; 220; 245 Volt
Loudspeaker: Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 15 cm = 5.9 inch
Material: Bakelite case
Model: B4X61A - Philips; Eindhoven tubes
Shape: Tablemodel with Push Buttons.
Dimensions (WHD): 517 x 346 x 223 mm / 20.4 x 13.6 x 8.8 inch
Notes: AM radio with built-in ferroceptor:
LW: 150 - 260 kHz.
BC: 519 - 1620 kHz.
SW: 5,8 - 12,3 MHz.
FM radio with dipole antenna input: 87,5 - 100 MHz.
Amplifier: SRPP1 type in 800 Ohm (loudspeaker AD3700AM).
Dial lamps: 8024N (6.3V / 300mA, bajonet).
All photos are part of the description.
The radio will be properly packed and sent via Smart Shipping with insurance.
It can be picked up from Waregem, Belgium.
A well maintained cabinet, clean and few signs of wear.
The radio is used as a Bluetooth tube amplifier to play music from various BT audio devices.
The Bluetooth adapter is located inside and it has a Li-ion battery charged from local transformer.
The OTL tube amplifier works, but there is no signal on AM/FM, no dial indicator.
Technical Specifications from Radiomuseum.org:
9 Tubes: ECC85, ECH81, EF89, EF85, EM80, EABC80, EL 86, EL84, EZ80.
Main principle: Superheterodyne (common); ZF/IF 452/10700 kHz; 2 AF stage(s)
Tuned circuits: 6 AM circuit(s) 12 FM circuit(s)
Wave bands: Broadcast, Long Wave, Short Wave plus FM or UHF.
Power type and voltage: Alternating Current supply (AC) / 110; 127; 145; 165; 220; 245 Volt
Loudspeaker: Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 15 cm = 5.9 inch
Material: Bakelite case
Model: B4X61A - Philips; Eindhoven tubes
Shape: Tablemodel with Push Buttons.
Dimensions (WHD): 517 x 346 x 223 mm / 20.4 x 13.6 x 8.8 inch
Notes: AM radio with built-in ferroceptor:
LW: 150 - 260 kHz.
BC: 519 - 1620 kHz.
SW: 5,8 - 12,3 MHz.
FM radio with dipole antenna input: 87,5 - 100 MHz.
Amplifier: SRPP1 type in 800 Ohm (loudspeaker AD3700AM).
Dial lamps: 8024N (6.3V / 300mA, bajonet).
All photos are part of the description.
The radio will be properly packed and sent via Smart Shipping with insurance.
It can be picked up from Waregem, Belgium.
