I've got a pair of 10K OPTs with 4 and 8 ohm secondaries. I also have a pair of 6l6GCs, with a mess of preamp tubes around. My question is, how can I put these OPTs to use? I think maybe I can run the 6l6s in triode w/ like 350 B+ and get a few watts while staying under their 30w dissapation. Data sheet says in pentode mode I should expect 10-15% distortion with a 4k load. That seems like alot. Will a greater load increase or decrease distortion. Maybe some NFB, but how much? Good idea?
It seems like most designs call for a 5k load or less. Is their some other tube that is happy driving a 10k load? I think maybe I should just build it and find out... What do y'all think?
Wow, this post has an abundance of question marks dosen't it...
-Jared
It seems like most designs call for a 5k load or less. Is their some other tube that is happy driving a 10k load? I think maybe I should just build it and find out... What do y'all think?
Wow, this post has an abundance of question marks dosen't it...
-Jared
Consider taking a page out of the DECWARE SE84's book. Triode strapping the 6L6s with 100 Ohm resistors will be FINE. You will end up with about 5 BALLSY W. Distortion will be LOW and the damping factor will be HIGH for a SET amp.
A pair of true mid 90s efficient 4 Ohm speakers connected to the 8 Ohm taps might give you a pleasant surprise. 2 Ohm Parker 95s/98s connected to the 4 Ohm taps could be excellent.
A pair of true mid 90s efficient 4 Ohm speakers connected to the 8 Ohm taps might give you a pleasant surprise. 2 Ohm Parker 95s/98s connected to the 4 Ohm taps could be excellent.
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- Amplifiers
- Tubes / Valves
- SE design using 10k OPTs