THE AMPLIFIER INSTITUTE

4 July 2011 Updated
The Design of Active Crossovers
OUT NOW

5 Mar 2015 Updated:
Electronics World Article Index

16 June 2016 NEW
AES Powerpoint presentations

19 Nov 2017 Updated
THE NEW BOOK
Electronics for Vinyl

15 Jan 2018 UPDATED
Balanced Line Technology


THE MUSEUM OF RETROTECH

11 June 2018 Updated:
Compressed-air vehicles

17 June 2018 Updated
Acoustic location

20 June 2018 Updated:
Optical telegraphs

8 July 2018 Updated:
N-wheeled cars

10 July 2018 Updated:
Refrigerating with Air

11 July 2018 Updated:
Hydraulic Microphones


UNUSUAL RAILWAY LOCOMOTIVES

10 Jan 2018 Updated
French Purrey boiler locos

28 Feb 2018 Updated
Russian Reforms

20 Mar 2018 Updated
The Hurd-Simpson locomotive

28 Apr 2018 Updated
Strange chimneys

12 June 2018 Updated
Compressed on L'Ouest

15 June 2018 Updated
Lever Locomotives