Grundig Concert Boy 1100

Grundig Concert Boy 1100
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The Concert Boy 1100 was a 5-waveband radio manufactured by the Grundig Corporation, and available in 1975/76. It had concert-hall sound quality due to the Grundig 7-inch elliptical Superphon loudspeaker, which the engineers designed especially for this radio. This was the reason why Grundig audio sounded a little better than the rest. Looking at the service manual, the audio output stage uses a complementary pair of germanium transistors AC187 and AC188 in a push-pull configuration with a 1000 µF output capacitor. This provides 3-watts of audio output when the radio is mains powered. The radio sported automatic frequency control for VHF, and band-spread for the shortwave bands.

Features

  • Mains or battery operation
  • Side-mounted tuning control
  • Volume, bass, and treble controls
  • Sockets for headphone and external speaker
  • DIN socket for additional connectivity
  • 16-inches × 8¾-inches × 3½-inches

Cost

The Concert Boy 1100 is an extremely popular radio that is often for sale on eBay and on-line sites. A broken one might sell for the price of ten pounds; however, a working one in good condition could fetch considerably more.