In Reply to: Here is the thing: Avoid gilding a dandelion. posted by Chip647 on March 12, 2017 at 13:13:26:
I agree with you most part, however, this is necessary to have a fully balanced linestage like the SFL-2. I listened to a system that has Lynn Olson Amity abd the SFL-2 drive it perfectly as this amplifier is pretty insensitive -- around 5v input sensitivity with 300B output tubes.
The SFL-2 has a pretty high gain and well designed balanced circuit. I don't think a preamp with your listed DHT tube is able to do the job. Unless a DHT preamp build in the way like this circuit with PT8/PT9 WOT that has 24db with tremendous amount of drive, but it has 2 stages.
Unfortunately, I have the circuit, but no values of all components indicated in the circuit.
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Topic - resistors value - Tubenstein 05:42:00 03/12/17 (6)
- Solution , possible, workable - drlowmu 15:45:55 03/13/17 (1)
- RE: Solution , possible, workable - Tubenstein 09:53:35 03/14/17 (0)
- RE: resistors value - Chip647 10:23:05 03/12/17 (3)Follow Ups
- RE: Here is the thing: Avoid gilding a dandelion. - Tubenstein 08:38:38 03/13/17 (0)