![](http://www.sowp.org/wp-content/uploads/2018/07/LR-0306271808-Abernathy-27-copy.jpg)
Kleinschmidt Installation in Wire Room, NPG
![](http://www.sowp.org/wp-content/uploads/2018/07/LR-0306271809-Abernathy-28-copy.jpg)
“Booth C, used mostly on NPL and NPC circuits.”
![](http://www.sowp.org/wp-content/uploads/2018/07/LR-0306271810-Abernathy-29-copy.jpg)
“Receiving booth #6. SE143 receiver, detector box, 2-stage AF amplifier.”
![](http://www.sowp.org/wp-content/uploads/2018/07/LR-0306271811-Abernathy-30-copy.jpg)
“Telegraphone receiver for copying NPO or NPM at high speed. Parts to load for VLF arcs. Signals fed to Poulsen recorders.”
![](http://www.sowp.org/wp-content/uploads/2018/07/LR-0306271812-Abernathy-31-copy.jpg)
NPG Telegraphone Amplifiers, Control Circuits, & Transcribing Amplifier with Tone Trap
![](http://www.sowp.org/wp-content/uploads/2018/07/LR-0306271814-Abernathy-33-copy.jpg)
Telegraphone Wire Ready for Soldering
![](http://www.sowp.org/wp-content/uploads/2018/07/LR-0306271815-Abernathy-34-copy.jpg)
Method of Filing Down Splice of Telegraphone Wire
![](http://www.sowp.org/wp-content/uploads/2018/07/LR-0306271816-Abernathy-35-copy.jpg)
Close Up of Tone Trap, Telegraphone Installation
![](http://www.sowp.org/wp-content/uploads/2018/07/LR-0306271816-Abernathy-36-copy.jpg)
“Shortwave transmitter installed at a very early date.”
![](http://www.sowp.org/wp-content/uploads/2018/07/LR-0306271804-Abernathy-23-copy.jpg)
NPG Power House, Main Distributing Board, and Shortwave Set?
![](http://www.sowp.org/wp-content/uploads/2018/07/LR-0306271805-Abernathy-24-copy.jpg)
NPG Power House
Further information about some of these photos can be found on page 10 of in Sparks Journal Vol 1 No 4, which you can get by clicking here.