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congrats junkkk! nice to have been dealing with you. the OPTs are under right?
you may try the 6201/12at7 in the first hole, there are some who liked the higher gain it brings...
Maganda at malinis...lalong gaganda tunog nito using Cal's signature IC.
Subukan ko nga 12AT7,Edrel, meron ka ba stock?
since your input stage in an srpp, this is one situation wherein switching from a lower mu to a higher mu is possible.........in other cases this should not be done....for the 317 ccs, you may also try the dn2540 mosfet....http://doc.chipfind.ru/sutex/dn2540.htm
linis sir ng gawa nyo.currently ipon mode to get irons from sir edrel also.
Ako nag ipon for 2 months, pag may pera buy ng parts sa ebay, di ko pa alam na may tubes si Edrel same price lang din at readily available pa unlike ebay wait ako 3 weeks to arrive.Still got 2 6LU8 from ebay, I am planning for spud amp next, idea came from Edrel. He got OPTs for sana di pa nya na bebenta
i got around 20pcs for U$1 each here.....http://www.vacuumtubes.net/?source=google&gclid=COeixdvb-rUCFQUl4godeAQAWwthe 6LU8 tube is a nice sounding tube, the only caveat is that you have to operate at lower screen voltage of about 120 to 150 volts, using a full wave voltage doubler in the psu, this is very easy...
Really! naku di na naman ako makakatulog nyan ... yaiks
talaga.....there are lots and lots of dollar tubes, kaya ako nakaipon ng 1000 tubes.....nukod pa dyan yung mga anik anik na napupulot namin ni Edrel sa paligid ligid ng metro manila...and then there are Russian tubes, mura kasi hindi hyped....
I modified the LM371 CCS into a TLV431 Boosted CCS at 75mA for each EL86 at UL mode and used 12AT7 on the first stage with no bypass caps. Sounds have greatly improved, can't explain it but this current setup gives the best sound!Thanks Tony for the suggestions. Will keep it this way for a while.