The following diagram (Fig.1) easier and more reliable given in [1], and not inferior for stability.
Installation requirements conventional, the design of inductors - any manner consistent with the normal requirements for their execution. If you have trouble generating will help the switching inductor between R cathode and chassis. For NP Rk=5,1 K, for NB - 6.2 K.
Fig.1
When you replace the 10K resistor in the anode L2 R=51 kω and the increase of the anode voltage up to 150 V current consumption at the anode L1 is increased to 1 milliampere, and the total cathode current is 1.5 mA.
Literature:
- 1. "RL" No. 6/91, p. 7. Danilenko. A stable oscillator.
Author: E. Danilov (U3SF); Publication: N. Bolshakov, rf.atnn.ru