• Country
• Germany

• Manufacturer / Brand
• EIGENBAU (selbst geb. - nicht Nachbau) - siehe auch Nachbau oder Selbstbau - evtl. Unbekannt

• Year
• 2003 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 352292

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Transistors
• 4

• Semiconductors
• BD234 BD234 unknown_tr unknown_tr 1N4006

• Wave bands
• - without

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / NiCd: 7,2 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: M-A-Tester - Magische Augen Tester 18 - EIGENBAU selbst geb. - nicht

• Shape
• Portable set > 8 inch (also usable without mains)

• Notes

• A tube tester only for "magic eyes" EM80 EM84/EM800 and other old tubes. The anode voltage of approximately 220 V is produced by an internal transistor inverter. Power is supplied via a 1600 mAh 7.2 V NiCd rechargeable battery.
  The unknown transistors are two TUPs which can therefore be chosen from many with these characteristics.
  Diodes 1N4006 are 7.
  The test consists of opening and closing the magic eye with 2-second cycles, simulating maximum and minimum tuning.

• Author
• Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.

• Other Models

• Here you find 48 models, 40 with images and 17 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from EIGENBAU (selbst geb. - nicht Nachbau) - siehe auch Nachbau oder Selbstbau - evtl. Unbekannt