Photo by KC8IV Heathkit SB240 2kw amplifier. What! You say you never heard of a Heathkit SB240 amp. Well you and most of the ham radio operators around the world never heard of this amp, and there is a story behind it. This is a very, very, very, rare piece of Heathkit history. Photo by…
DetailsNew QRO Chinese Zhong Xing automatic HF Linear Amplifier “HF2013DX-A”. Photo by Zhong Xing Important safety instructions: –The amplifier contains high voltage circuits. Never turn the amplifier on without the upper lid in place. –The amplifier is neither to be used in a wet or humid environment nor to be exposed to rainfall. –The amplifier…
DetailsBlueline ECO750 – Most modern components and a highly efficient layout design result in lower thermal power loss. This power amplifier works according to the Doherty principle with an up to 20 % higher efficiency factor. This amplifier uses especially efficient LDMOS semiconductors from European manufacturers, providing both energy efficiency and high amplification. Because of…
DetailsChinese X1M is portable QRP dual-mode (ssb / cw) HF transceiver. Features: Transceiver: X1M [v2.01] Frequency range: 0.1 ~ 30mhz transceiver; Modes: ssb / cw (AM as optional); Power output: 5 Watts (max); Operating voltage: minimum 9.6v (dc), the highest 14.5v (dc); Operating current: 0.35a (min), 1.2a (max); Preamplifier; Memory 100 channels ; RIT function;…
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