Hi guys
need some help or advices about tubes. Got a MkIIB 60W SRGX combo and recently tried some different tubes. Found some really nice Philips ECG STR 387 (double getter) in an old Acoustic G60T and put them in the Boogie. I measured 447V on the plates and got a reading of 31mA on both tubes (quite perfectly matched for this old suckers :wink: ) so that's biased quite cold. Does somebody know what the reading should be with Mesa STR415?
tried some other tubes to compare:
TAD 6L6 WGC short bottle, clear top: 39mA (37)
old Fender tubes (single getter, probably also STR387): 38mA (34)
EH 6L6: 25mA (29)
the Philips sounds very god, sparkling, most treble of all tubes I tried, the TAD is the loudest, more midrange ( probably its bias is close to 60% at idle), the old Fender tubes sound quite similar to the TADs, the EH is dark and midrangy, least appealing of all.
Somebody know, which tubes Mesa recomends for the MK series? On their page I only found the 6L6 STR440. I heard they have a colour code system, but didnt find any infos on their pages. Which color would be the best bias for a MKII.
Thanks, Thomas
need some help or advices about tubes. Got a MkIIB 60W SRGX combo and recently tried some different tubes. Found some really nice Philips ECG STR 387 (double getter) in an old Acoustic G60T and put them in the Boogie. I measured 447V on the plates and got a reading of 31mA on both tubes (quite perfectly matched for this old suckers :wink: ) so that's biased quite cold. Does somebody know what the reading should be with Mesa STR415?
tried some other tubes to compare:
TAD 6L6 WGC short bottle, clear top: 39mA (37)
old Fender tubes (single getter, probably also STR387): 38mA (34)
EH 6L6: 25mA (29)
the Philips sounds very god, sparkling, most treble of all tubes I tried, the TAD is the loudest, more midrange ( probably its bias is close to 60% at idle), the old Fender tubes sound quite similar to the TADs, the EH is dark and midrangy, least appealing of all.
Somebody know, which tubes Mesa recomends for the MK series? On their page I only found the 6L6 STR440. I heard they have a colour code system, but didnt find any infos on their pages. Which color would be the best bias for a MKII.
Thanks, Thomas