My Guides and Manuals

Le mie guide e i miei manuali.
Tube and tube-tester manuals.

Guide to the EL34 / 6CA7
(7.th Edition)  (in English)

Guide to EL34/6CA7 by Pasquale Russo (7.th Edition)

Guide to the 6L6/KT66/6550/KT88/6550A
(The audio beam tetrode review)

(in English)
Guide to 6L6/6550/KT66/KT88. The Audio Beam Teetrode Review

Jackson 648 series:English illustrated manual 

Jackson serie 648: manuali illustrati in italiano

Hickok 539B-539C: English illustrated  manuals 

Hickok 539B-539C: manuali illustrati in italiano

Hickok 539 English/Italian illustrated manual

Avo  CT 160: English illustrated  manual 

Avo CT 160: manuale illustrato in italiano

Avo MKIV: English illustrated  manual 

AVO MKIV: manuale illustrato in italiano

Neuberger WE252 : English illustrated  manual 

Neuberger RPM370 English illustrated manual
Neuberger RPM 370 manuale illustrato in italiano

Le mie guide e manuali sono disponibili  a richiesta in formato PDF
All my guides and manuals are available on request in PDF.