recorders

Remotely-tuned loop antenna for LW and MW - This article describes how to build a loop antenna for low frequency (LF) and medium wave (MW) reception with remote-controlled tuning. The antenna is extremely sensitive and can be built mostly from parts from old radios and tape recorders. Like all loop antennas, it is highly directional, which allows you to null out unwanted noise sources.

Radioexchange.net Antique Radios - Antique radios, ham radio, electronic parts, test equipment, stereo equipment, record players, phonographs, tape recorders, gadgets, Bought & Sold Online

Eventide Inc. - extensive line of digital voice logging recorders, instant recall recorders, and accessories for use by communications and broadcast professionals

Zetron - Consoles, Recorders, Dispatch, Alerting, Paging, Monitoring equipment.

Hioki - Memory recorders, Power meters, testers and multimeters, noise testers, signal generators

GE Digital Energy - Relays, controllers, power meters, fault recorders, power sensing products

Electro-Meters - Dealer of digital and analog panel meters Products include portable test equipment, oscilloscopes, recorders and temperature sensing equipment

Filters and Ferrites in EMC - This article is about the characteristics and use of various filters and ferrites for solving amateur radio electromagnetic compatibility problems involving breakthrough of amateur signals into domestic equipment such as television sets, video recorders stereo sytems etc.