https://padlet.com/seanhaddps/hwqnn4bdb7gakotq en-us 2026-05-23 11:41:28 UTC 2026-05-24 23:46:26 UTC hello@padlet.com https://padlet.com/seanhaddps/hwqnn4bdb7gakotq/wish/3927307690 Uses a RF bypassed current mirror Q1,Q2 for AM detection. Q3,Q4 is a cascode RF amplifier. Q4 is biased in an allowable way but a way that is only suitable for small signals. The base emitter voltage is about 0.6 volts as is the collector emitter voltage which is just enough for a few 10's of millivolt signal at the collector while removing a lot of biasing components.

]]> 2026-05-24 02:43:03 UTC https://padlet.com/seanhaddps/hwqnn4bdb7gakotq/wish/3927307690 https://padlet.com/seanhaddps/hwqnn4bdb7gakotq/wish/3927842266 2026-05-24 23:40:49 UTC https://padlet.com/seanhaddps/hwqnn4bdb7gakotq/wish/3927842266 https://padlet.com/seanhaddps/hwqnn4bdb7gakotq/wish/3927842689 Meissner oscillator circuit.

]]> 2026-05-24 23:42:07 UTC https://padlet.com/seanhaddps/hwqnn4bdb7gakotq/wish/3927842689 https://padlet.com/seanhaddps/hwqnn4bdb7gakotq/wish/3927843562 Noise generator circuit. You could replace ZD1 with reverse biased transistor emitter base junction.

]]> 2026-05-24 23:45:02 UTC https://padlet.com/seanhaddps/hwqnn4bdb7gakotq/wish/3927843562 https://padlet.com/seanhaddps/hwqnn4bdb7gakotq/wish/3927843925 Simple oscillator circuit.

]]> 2026-05-24 23:46:24 UTC https://padlet.com/seanhaddps/hwqnn4bdb7gakotq/wish/3927843925 https://padlet.com/seanhaddps/hwqnn4bdb7gakotq/wish/3927844217 Simple moderate impedance antenna idea.

]]> 2026-05-24 23:47:21 UTC https://padlet.com/seanhaddps/hwqnn4bdb7gakotq/wish/3927844217