HELIOS SET

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Across
  1. 2. SPHERE
  2. 4. NON-
  3. 5. PHONO
  4. 7. EXTRA-
  5. 8. CON
  6. 9. TELE-
Down
  1. 1. CO-/COM-
  2. 3. INTER-
  3. 5. VIS
  4. 6. DE-