Видео с ютуба Q-Multiplier

Hallicrafters S-38E ＋ Q-Multiplier

S38+Q-multiplier

The Heathkit GD-125 Q Multiplier

Умножитель добротности улучшает прием сигнала кварцевого резонатора — Часть 1

Testing antenna materials for RF properties with a simple receiver

Q Multiplier on Surplus Receiver

radio with q multiplier circuit..improves mw reception..

A Simple Q-Multiplier Circuit

TA7642 AM Radio Receiver w/ Q-Multiplier

умножитель добротности в ламповом радиоприёмнике

Heathkit QF-1 Q-multiplier

Drake 2B 2BQ Effect on CW Selectivity

q multiplier to improve rf sensitivity in am radio...rf 2200 based homebrew

HD-11 Q-multiplyer

Hammarlund HQ-100A with q-mult

Hammarlund Receiver Q Multiplier Use

Shortwave Receiver Peak and Notch Filters: R&D Pt 1

The Heathkit QF-1 Q Multiplier

TA7642 regen

Helical transmission reception via Q multiplier stage.