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Extreme Low Noise Preamplifier
- Originally I looked for a very low noise balanced preamplifier for dynamic microphones, but with a gain of 20 dB only
post 03 Jun 2026
Preamplifiers Links →
Wideband active loop antenna 3-30 MHz
The antenna should be used with an amplifier since the loop current is very small
Yaesu FT 847 70mhz pre-aplifier
FT-847 has a build in preamp, but it seems to have poor gain at 70mhz,so I decided to add another preamplifier stage
Designing Op Amp Audio PreAmplifiers
Operational amplifiers are simple to use, inexpensive and offer a very large amount of gain
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The antenna should be used with an amplifier since the loop current is very small
FT-847 has a build in preamp, but it seems to have poor gain at 70mhz,so I decided to add another preamplifier stage
Operational amplifiers are simple to use, inexpensive and offer a very large amount of gain
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