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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Re: My 26 SE Headphone Amp Using AC Filaments – A Development? posted by Perseo on December 4, 2006 at 04:19:45:
Hi ,
I am not familiar with this currently popular 'Aikido' topology . Have you tried the 26 in a standard resistor or CCS loaded common cathode circuit ? Also is the cathode bias resistor bypassed ? I tend to use NimH batteries so I cannot comment on unbypassed/bypassed resitor biasing on the 26 . DC filaments should be very easy to implement . Just use a heatsinked LT1085 or LM1084-ADJ connected as CCS after the rectification/smoothing , factor in an extra 3 volts or more to keep the CCS in compliance . Alternatively an alkaline 8A/h 'D' cell should get you up and running almost instantly on DC , I cannot vouch for the life of the battery in this application though ;)cheers
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Follow Ups
- Re: My 26 SE Headphone Amp Using AC Filaments – A Development? - fatbottle 06:21:22 12/04/06 (2)
- Other methods of firing the 26 filaments - Perseo 07:39:22 12/05/06 (1)
- Re: Other methods of firing the 26 filaments - fatbottle 08:15:03 12/05/06 (0)
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