RIAA 1% HV caps were not easy to get, Mr. Merlin had organized a mini GB for that back then even. ICEL metalized PP maybe. Maybe I forget exactly what. But not really boutique couplers, mostly ex Soviet FT or hybrid stuff and industrial grade new production PP. Most influential part should be the SUT.
Hi Salas,
Thank you.
I didn't ask about specific capacitors, only about the impact on subjective impression of sound quality by choosing different coupling capacitors (C4 and C6 on v1.2, for instance). I assume the SQ impression is dependent, to a large degree, by the capacitors chosen. Is that correct?
Thank you.
I didn't ask about specific capacitors, only about the impact on subjective impression of sound quality by choosing different coupling capacitors (C4 and C6 on v1.2, for instance). I assume the SQ impression is dependent, to a large degree, by the capacitors chosen. Is that correct?
Hi,
If Salas doesn't mind me repeating so, the importance of the quality of the coupling caps is minor compared to the importance of the PS and the SUT.
Which is what Salas says already anyway.
There are many ways to skin the proverbial cat, you could use an all tube regulated PS, do away with the SUT and use an active stage there. The variations on the theme seem endless but the keys to the circuit is the u-follower at Vg0.
Nothing novel but unusual nonetheless.
All in all an excellent circuit. One that can be pushed into high-end territory competing with the world's best at relatively minor expense.
I'd say that's a compliment.
Cheers,
If Salas doesn't mind me repeating so, the importance of the quality of the coupling caps is minor compared to the importance of the PS and the SUT.
Which is what Salas says already anyway.
There are many ways to skin the proverbial cat, you could use an all tube regulated PS, do away with the SUT and use an active stage there. The variations on the theme seem endless but the keys to the circuit is the u-follower at Vg0.
Nothing novel but unusual nonetheless.
All in all an excellent circuit. One that can be pushed into high-end territory competing with the world's best at relatively minor expense.
I'd say that's a compliment.
Cheers,
Challenging concept
Salas I'm about halfway thru the tubbies. Going bonkers on the steep oscillating ones like 6C45 and 6E5P's.
Challenging concept
Salas I'm about halfway thru the tubbies. Going bonkers on the steep oscillating ones like 6C45 and 6E5P's.
6C45 likes grid stoppers - around 100 ohm ~ 1kohm. Good choice for the output because of it's low plate resistance.
Yes. And a grid leak preferably down to 50 k. Problem is that i have them in my AVO mk IV.