Coil condenser, manufactured by Marconi.
Condenser is used to reduce sparking across of the contacts of the interupter of a spark coil. It was normally used with a spark coil used in the emergency transmitter set-up of a ship. It is called a 'coil condenser' because it is used in conjunction with a spark coil.
Part of set:
ST 18546 Coherer And Tapper, Marconi
ST 18546.1 Coherer Based Detector Assembly - Marconi, Radio Receiver
ST 018546.2 Coherer And Tapper, Marconi
ST 018547 Morse Inker - Marconi, Radio Receiver
ST 018548 Morse Recorder Reel - Marconi, Radio,
ST 018549 Morse Key - Marconi's Wireless Telegraph
ST 018550 Condenser - Marconi, Radio,
ST 018551 Induction Coil - Marconi, Radio,
ST 018552 Transmit or Receive Mode Switch - Marconi, Radio,
The set should contain a jigger, which might be.ST 021412 (possibly made at Melbourne University Engineering School).
Tinfoil condenser: brown wooden box with screwed down lid; two brass terminals on side. Lid is cracked.
Lid: MARCONI'S WIRELESS / MAKERS / TELEGRAPH Co. Ltd. / 191 / (embossed) 5TR
Type of item
585 mm (Length), 330 mm (Width), 73 mm (Height)
[Book] Hawkhead, J. C. & Dowsett, H. M. 1915. Handbook of Technical Instruction for Wireless Telegraphists. 310., 1915, 209-211 Pages