UntilThen
Headphoneus Supremus
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This should be very interesting.
I'll be watching with interest how this unfolds.. both using 4 6BL7 and 6 6BL7 as power tubes.
I have a glimpse as I'm witnessing now with 2 EL3N as drivers and 4 EL3N as power tubes. It's nothing short of breathtaking. The realism is uncanny. Musical notes come alive. It will enslave you and turn you into a musical jukebox. Well kind of...
I spend a full day yesterday with Six EL3N and came away totally gobsmacked. Today I'm spending time with 2 EL3N as drivers and 2 6BL7 as power tubes. They sound good ... very good at this stage I would say. I have only less than 8 hours on it. I think 4 6BL7 as power tubes would be an interesting contest against 4 EL3N. If you're using 6 6BL7 as power tubes, be prepared for a blast off to space and not returning. So be very careful...
You're quite safe to go with Six EL3N and 2xEL3N / 2x6BL7 now...this will be a thrilling sonic ride that you will be laughing uncontrollably. Don't worry about using 2xEL3N / 2xEL3N.... go straight for Starship Enterprise (that's what I call Six EL3N).
In fact with Six EL3N, I don't think I need anything else.... but that's what I said a month ago.
Another pic of Starship in full flight veering slightly to the left as it negotiate a tight left turn.
mordy said:
Using 4 x 6BL7 = 6A, making for a total of 7.8A using 2 x EL3N. This seems to call for external heater power. It is not difficult to arrange. The question I have is if doubling the 6BL7 tubes will result in a big improvement in sound. For that matter, I could see asking Mrs Xuling to make an adapter strip with two octal pin bases on the bottom, and 6 octal sockets on top for 6 6BL7 tubes. The power leads could be built into the adapter, and the current draw would be 10.8A. This could be handled by a 12V 15A power supply and a 15A voltage regulator. However, I am not sure if this is enough since the tubes at start up draw much more current, and a 4A margin may not be enough. Anybody?
This entire strip adapter would fit across the Elise width-wise, maybe protruding a little bit on each side. Glenn makes an amp with six 6BL7 tubes and claims that this sound is better than any 6AS7 tube.
Looks like we have a winner here with just two 6BL7 tubes.....
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If you get 2 adapters with three 6BL7s with the filament leads brought out then hook them in series 6.3 + 6.3 = 12.6 @ 4.5amps no voltage regulator needed
And a smaller 12 volt power supply. Also will have a lower start up inrush then six 6BL7s in parallel.
This should be very interesting.
I'll be watching with interest how this unfolds.. both using 4 6BL7 and 6 6BL7 as power tubes.
I have a glimpse as I'm witnessing now with 2 EL3N as drivers and 4 EL3N as power tubes. It's nothing short of breathtaking. The realism is uncanny. Musical notes come alive. It will enslave you and turn you into a musical jukebox. Well kind of...
I spend a full day yesterday with Six EL3N and came away totally gobsmacked. Today I'm spending time with 2 EL3N as drivers and 2 6BL7 as power tubes. They sound good ... very good at this stage I would say. I have only less than 8 hours on it. I think 4 6BL7 as power tubes would be an interesting contest against 4 EL3N. If you're using 6 6BL7 as power tubes, be prepared for a blast off to space and not returning. So be very careful...
You're quite safe to go with Six EL3N and 2xEL3N / 2x6BL7 now...this will be a thrilling sonic ride that you will be laughing uncontrollably. Don't worry about using 2xEL3N / 2xEL3N.... go straight for Starship Enterprise (that's what I call Six EL3N).
In fact with Six EL3N, I don't think I need anything else.... but that's what I said a month ago.
Another pic of Starship in full flight veering slightly to the left as it negotiate a tight left turn.