Inyectores Para Grand Cherokee 1993 - Accesorios para ...
The P27/500 is the Tungsram version of the classic PX25 from M-OV. The P27/500 is directly heated and feeding the filament to minimise hum is not straight forward. Williamson, who worked for M-OV and then Ferranti, indicated that the modern indirectly heated KT66 when strapped as a triode was almost identical in performance to the PX25.
HP Pavilion Desktop - 500-467c | HP® Customer Support
1 Summary The EMC Directive and the European Commission Guidelines apply to a great diversity of equipment and are therefore written in general terms. Interpretation of how the requirements apply to ITE is often difficult and can lead to widely differing practices between manufacturers.