Practical Wireless Extras

Additional information for readers of my articles
published in Practical Wireless

December 2003 A Happy New YARR, and poor quality valves.
September 2003 TRF set receive frequency and using ex-military and ex-television valves.
June 2003 An EF50 receiver, NiCds and the KRC-A-2, and why I 'Powered that Valve Portable'.
March 2003 'New' B126 90V h.t. batteries and an EF50 receiver.
December 2002 Backward volume controls.
September 2002 Blueprints, and Happy 70th Birthday PW.
June 2002 The 40th anniversary of 70.260MHz and do-it-yourself h.t. and l.t. batteries.
March 2002 My PM2DX (again) and low-voltage receivers.
December 2001 Portable recording from disc to disk.
September 2001 My PM2DX and one-valve regenerative receivers.
June 2001 Valve codes and a note about my 3W valve amplifier.
March 2001 My 3W valve audio amplifier.
December 2000 SM7UCZ's 6L6G transmitter and how to care for a billiard table.
September 2000 A 1mW 3.5MHz transmitter using a DL96 battery valve.

Power That Valved Portable A power supply for battery-valved portable radio sets. Generates both HT and LT supplies from 12V NiCd, NiMh or sealed lead-acid batteries. Published in December 2002.
IBP Clock The PW International Beacon Project Electronic Timer, published in December 2001 and January 2002.