The characteristics of a small periodic-pulse high-current power suppl
y based on Blumlein generator combined with a resonance high-voltage t
ransformer with an open ferromagnetic core are described. The power-su
pply output voltage is finely tuned in the range of 30-300 kV, the pul
se duration is 4 nsec, and the rise time is < 1 nsec, the efficiency i
s up to 0.6, the impedance is 45 OMEGA, and the maximum pulse repetiti
on rate is 25 Hz. The supply is designed to power the high-current vac
uum diodes of small accelerators.