Hello every one,I plan to only clone the ARC SP16 Preamp,which MOSFE can be used for the Q1(1036)? is there any way to use a tube for this ccs? any comments or suggestion.Really appreaciate.
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Hello every one,I plan to only clone the ARC SP16 Preamp,which MOSFE can be used for the Q1(1036)? is there any way to use a tube for this ccs? any comments or suggestion.Really appreaciate.
A number of depletion mosfets like the DN2540 will work fine. And so will a pentode. R36 will obviously need to be adjusted.
But why clone a preamp which was never known to sound any good? Even ARC themselves saw a bit of light and moved onto higher current, nfb free circuits.
Your on the right track, below is an example of a similar setup using 6SN7’s this arrangement sounds fabulous, if you want to stick to 9-pin tubes I would use a 6CG7, use a MOSFET as a sub for the cathode follower.
And LM334 as a ccs.
The gain is adjustable as well.
Is there any obvious differences between 6SN7 and 12AX7 for the input
differential amplification. can we use tube as ccs to replace for the LM334
Your on the right track, below is an example of a similar setup using 6SN7’s this arrangement sounds fabulous.
Looks like something I might try. Couple of questions.
- Do you know the HV supply needed?
- No load resistor in the first triode?
- What is the gain?
Thanks.
6SL7 is similar to 12AX7,but the size is bigger.How about a 6SL7 (as in the Octal Cornet)?
Looks like something I might try. Couple of questions.
- Do you know the HV supply needed?
- No load resistor in the first triode?
- What is the gain?
Thanks.
I read somewhere that the 6SN7, 6SL7 internal structure was symmetrical, unlike the 12AX7. Stated they sound better?
I have heard the Octal Cornet and it was very nice. A lot of neat design features.
I also like 6DJ8 and 2SK170/417a phono stages.
BTW, I'm not promoting or knocking anyone's design, just thinking out loud.
I hope the original poster is finding what he is looking for.