Явно модела не е CREDO. CREDO_то е с радиолампи А серия. Вижте що нещо излезе от Радиомузея:
1. For model Romanza 750A, Philips – (Schweiz)
EK2 EF5 EBC3 EBL1 EM1 AZ1
http://www.radiomuseum.org/r/philips_romanza_750a.html2. For model 750A, Philips Belgium (Belgien)
EK2 EF5 EBC3 EBL1 EM1 AZ1
http://www.radiomuseum.org/r/philips_750a_3.html3. For model 750A-14, Philips akc. spol., Praha-Hloubetin (Czechoslovakia)
AK2 AF3 ABC1 ABL1 AM1 AZ1
http://www.radiomuseum.org/r/philips_philips_credo_750a_750a_8.html4. For model 750A, Philips; Eindhoven (tubes international!); Miniwatt (Netherlands)
EK2 EF5 EBC3 EBL1 EM1 AZ1
http://www.radiomuseum.org/r/philips_750a_2.htmlhttp://www.radiomuseum.org/r/philips_symphonie_750u750.html 5. For model 750A-32, Philips; Eindhoven (tubes international!); Miniwatt (Netherlands)
EK2 EF5 EBC3 EBL1 EM1 AZ1
http://www.radiomuseum.org/r/philips_750a_32.html 6. For model Symphonie 750A-33, Philips; Eindhoven (tubes international!); Miniwatt (Netherlands)
EK2 EF5 EBC3 EBL1 EM1 AZ1
http://www.radiomuseum.org/r/philips_750a.html 7. For model 750A-13, Philips; Eindhoven (tubes international!); Miniwatt (Netherlands)
AK2 AF3 ABC1 ABL1 AM1 AZ1
http://www.radiomuseum.org/r/philips_750a_13.html 8. For model 750A-16, Philips; Eindhoven (tubes international!); Miniwatt (Netherlands)
EK2 EF5 EBC3 EBL1 EM1 AZ1
http://www.radiomuseum.org/r/philips_750a_16.html For model 750A -29, Philips France; Paris (France)
EK2 EF5 EBC3 EBL1 EM1 AZ1
http://www.radiomuseum.org/r/philips_750_a_29750a2.html 9. For model RA68A, Radiola (marque) (France)
EK2 EF5 EBC3 EBL1 EM1 AZ1
http://www.radiomuseum.org/r/radiola_ra68ara_68.html10. For model Barcarole 750A-30, Philips Radios – Deutschland (Germany)
EK2 EF5 EBC3 EBL1 EM1 AZ1
http://www.radiomuseum.org/r/philips_barcarole_750a_30_750_a_3.html11. For model Credo 750A, Philips Radios – Deutschland (Germany)
AK2 AF3 ABC1 ABL1 AM1 AZ1
http://www.radiomuseum.org/r/philips_750a_750_a.html