Okay guys, baka sabihin nyo pinapasakay ko lang kayo
So here's a soundclip of the El Tubero preamp. Good lessons learned here en route to building my first tubo amp. Including NEVER PUT THE PLATE VOLTAGE ON THE END OF A TERMINAL STRIP WHICH HAS THE MOUNTING SCREW ON IT (this buzzed me with 300+ volts a couple of times before I figgered out why). Hehehe. Meron palang mga Sovtek na tubo sa Audiophile ! Nyehehehe. At mura lang yung iba, yung 6550 na allparts, parang 1 k lang for a matched pair ! Power tubes yun ! China nga lang, pero the goal is an affordable, if not cheap, tube amp. Meron ding mahal, 5 thou ang isang piraso (nobayan!!!)
Anyways, eto sya. I flatted all EQ, somehow I can't get it to quack (must be in the mids or highs section which got cut out). Here are the parameters that may color the sound :
1. Guitar- RJ PRS copy with el cheapo Lazer Humbucker on bridge pickup.
2. All EQ is flat
3. Miked 6 inches away
4. Main amp is a JR50. Actually, not really coz I already pulled out the power amp section of this beast and replaced it with a 100 Watt solid state power amp module. Anyway, it should be "solid-state linear".
5. Mic is a Hyundai from a videoke machine
6. No reverb (the JR50 doesnt have it anyway).
7. Gain setting is somewhere between 1/4 and 1/3. Higher settings are unusable because of a "whistling" sound that ensues when you strum.
8. Input mixer/mic preamp is a 4-input el cheapo china mixer
http://rapidshare.de/files/12342555/eltubero.mp3.htmlOkay na din...sounds good...albeit, it still needs some modifications to the final 1/2 of the 12AX7. Needs a lower bias resistor to it can handle the high signal feed from the first half of the tube without choking out. Kumbaga, we love tubes coz they "breathe" kaso eto parang me hika, kinakapos ng hininga at high gain settings.
. Hindi ako nakabili ng capacitors for the Marshall tone stack, masyado maliliit at walang stock ang malapit na electronics store. I'll try Raon a little later today and finish this monster.