Bob\'s Antique Radio & Electronics
- Quality restoration supplies for vintage radios, amplifiers and juke boxes. Supplies include capacitors, electrolytics, pilot lamps, AC power cords, dial cords, Novus polishes and reproduction items.
- ELENOS is the leader company for fm transmitters, amplifiers, radio broadcast equipment and custom systems.
Amplifier Systems, Inc
- Designer and manufacturer of RF amplifiers used in a variety of custom applications in many diverse industries - from Scientific, Medical, Industrial, and Communications and Broadcast.
10/12 meter Mod for Ameritron 811
- 10 meter modification for the Ameritron AL-811 and AL-811H amplifier. This mod apply to other Ameritron AL Series RF amplifiers and allow extension to 10 and 12 meters band.
- A numerical optimizer (solver) for LTSpice IV. Uses a fast evolutionary algorithm. You can use EvoSpice to design high efficiency power supplies, audio filters, low noise RF amplifiers and an endless list of other applications
Converting the Amp Supply LK-500NT
- A technician's nightmare. The NT or No Tune amplifiers from Amp Supply were the abomination of the amplifier world. The only way that I know of to repair these amplifiers is to clean out the mickey mo
Using cheap tetrodes in amplifiers
- This article is written to dispel some of the misconceptions and misunderstandings about some of the tetrode based linear amplifiers, which are currently available on the amateur market.