• Country
• Netherlands

• Manufacturer / Brand
• Philips; Eindhoven (tubes international!); Miniwatt

• Year
• 1972 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 347079

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

• Number of Transistors
• 2

• Semiconductors
• AC127 AC128 TAA840

• Main principle
• Superheterodyne (common); ZF/IF 468 kHz

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Alternating Current supply (AC) / 50 Hz, 110; 127; 220; 240 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Power out
• 0.45 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Clock Radio 22RS291 - Philips; Eindhoven tubes

• Shape
• Tablemodel with Clock ((Alarm-) Clock Radio).

• Notes

• Philips clock radio 22RS291, equipped with two transistors for the output stage and 1 DIL 14 tag IC TAA840 for all other dynamic functions.

  Loudspeaker: 4 inch, 8 Ω.

  The clock operates on 50 Hz.

• Mentioned in
• -- Original-techn. papers. (Trader Service Sheet 3052/ 1972)

• Author
• Model page created by Sándor Selyem-Tóth. See "Data change" for further contributors.

• Other Models

• Here you find 5257 models, 4401 with images and 3453 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips; Eindhoven (tubes international!); Miniwatt