Phase invertor PI v2 Classic 18 watt trem circuit choice
Posted: Tue 02/02/10 8:45 pm
I finished my amp a year ago, classic 18watt tremolo circuit, and now I'm noodling with it. Tweaking if you will. Sounds awesome. No hiss. Lots of grit. I found some old 12ax7s and el84s I'm experimenting with along with resistor and cap value changes.
Question: Should V2 the PI be balanced or unbalanced? High gain or low gain? What would be the ideal choice for this tube. I know how important V1 is to the color of the normal channel (Mullard) and V3 for the trem channel (one that doesn't motor boat), but how about that PI? I know "if it sounds good use it" approach. But I was wondering if you had your choice, what would it be and why? Don't limit yourself to branding, but hot or cold, balanced unbalanced.
Thanks...
Rob
You know I've been searching this forum for a week for info on this and now and I just found this thread which explains it all. Maybe my post will help others find what I was looking for. Here it is..
http://www.18watt.com/modules.php?name= ... ic&t=21323
Question: Should V2 the PI be balanced or unbalanced? High gain or low gain? What would be the ideal choice for this tube. I know how important V1 is to the color of the normal channel (Mullard) and V3 for the trem channel (one that doesn't motor boat), but how about that PI? I know "if it sounds good use it" approach. But I was wondering if you had your choice, what would it be and why? Don't limit yourself to branding, but hot or cold, balanced unbalanced.
Thanks...
Rob
You know I've been searching this forum for a week for info on this and now and I just found this thread which explains it all. Maybe my post will help others find what I was looking for. Here it is..
http://www.18watt.com/modules.php?name= ... ic&t=21323