slazem se sa Savom! I ja mislim da ako se i menjaju , treba menjati samo prvu ulaznu lampicu u preampu... u prilog tome evo malog citata :Sava wrote:"
Ako baš hoćeš da se igraš probaj da pronađeš samo jednu npr. staru Telefunken (via Nikola, Peca?) pa je postavi na mesto prve lampe u lancu.
"Before you discover the new possibilities in your amp, let us give a disclaimer. Your amp was originally designed for a certain type, and although tube amps are often forgiving, it may not have a tone that you like with a different tube type. For instance, changing the tube type doesn't only change the gain factor; there are other variables as well and your amp may have a circuit that is more particular than others. "
a ceo text je na linku koji sam vec gore postovao:
http://thetubestore.com/gainfactor.html