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In Reply to: For the 211 what driver, what PS voltage? posted by Frihed89 on November 14, 2010 at 12:49:11:
Hi,> For the 211 what driver, what PS voltage?
You could use E810F or D3a or many others.
The 211 in a slight Class A2 Setup (Audio Note Japan Ongaku Style) needs no more drive than a 300B.
With an E810F driver you would need around 1250V +B and the 211 cathode will be at around 250V.
Power Output? Near 20 Watt I'd guess. The ANJ Ongaku claimed 27W.
I am not suggesting to build such a beast (there is however in my little black book a small design study, with a silver/permalloy TVC, a D3a Driver and full monkey/DRD style circuit with silver/permalloy anode load choke and silver/permalloy parallel feed output transformer plus silver parallel feed cap. Sadly the potential customer got way scared when all was priced out, so it remained a study.
As vhrynchuk points out, any 211 Amp (DC coupled or not) represents a substantial challenge and using one of the Super 300B's (or even just a plain 300B - I mean I get 16W from that alone) can get you as much power at lower voltages and with easier to get transformers etc...
I used the 211 example merely as illustration that there was no real limit to the full monkey design in principle.
Ciao T
Thor
At 20 bits, you are on the verge of dynamic range covering fly-farts-at-20-feet to intolerable pain. Really, what more could we need?
Edits: 11/14/10
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Follow Ups
- RE: For the 211 what driver, what PS voltage? - Thorsten 18:22:20 11/14/10 (1)
- RE: For the 211 what driver, what PS voltage? - Frihed89 01:16:45 11/15/10 (0)
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