Audion
“Audion” the German name of the old tube receiver, to which the lamp works as a detector. But in fact, it is a regenerative receiver with inductive feedback. Regenerative receiver or otherwise, the receiver with feedback is in terms of sensitivity and selectivity of receiving one of the best tube receivers. The essence of the regenerator is that it is in some way compensate the loss of the contour harmful adopted power.
Figure 1 shows a diagram of a regenerative receiver at a range of 5,5 - 7,5 MHz. The receiver is made on four pentodes 1ZH24B increased reliability and service life of not less than 5000 hours!
