Manufacturer and factory: Siemens Munich
Code: A6 6I
Year of production: 1966
Structure's features: Halo getter, shield, gold pin
Rating : 1
Original package : reboxed
Siemens CCa is the selection made by the most famous producer in audio , starting with the excellent features of the Siemens E88CC version of the same selection guarantees the highest standards for the electrical and valve operation , this type of selection was especially designed for customers with need to perform at a high level as those required for example in systems of long-distance transmission .
Main recipients were some big clients like Deutsch Post in Germany.
The selection CCa involves a different yield in audio electronics than equivalent Siemens E88CC version , compared to E88CC of today's production is particularly suitable to ensure improvements on the parameters of :
increased definition and transparency
control and reduction of frequencies mediobasse / low
greater richness of harmonics in the upper and middle / high frequencies
Siemens CCa A0 is the rarest and most sought after of all.
The internal triode are perfectly balanced: four identical section
PRICE FOR PAIR IN PERFECT MATCHING
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