Old Telephones

Jasper County Fair, July 26 2022

Brian Capouch

medaryville.org/telephones

POTS

Techology Sequence

  • Local Battery
  • Common Battery
  • Touchtones
  • Cellular Service
  • Integrated media device (aka "smartphone")

Parts of a Telephone*

*Local-battery type

A telephone is TWO devices!!

  • A talk circuit
    • AKA "bearer"
  • A signal circuit

The hookswitch toggles between the two

Hookswitch DOWN: signal

Hookswitch UP: talk

Talk Circuit

  • Transmitter
  • Receiver
  • Battery for power
  • Connecting Line
  • Induction Coil
    • Provides the "magic sauce"
  • Direct current

Signal Circuit

  • Generator (magneto)
  • Gongs (bells)
  • Alternating current
    • It can SHOCK you!!

Historical Sequence

  • One-box wall set
  • Candlestick
  • Grab-a-phone
  • Desk set

Old Telephones

By capouch

Old Telephones

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