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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: Ultrasonic AC for DHT Filament posted by Gary P on March 7, 2003 at 11:12:49:
good point... TK makes the same point below... i guess you just have to make the tradeoff between how much unbypassed cathode resistance you want, vs how much of your battery power you want to waste.what tube are you using with batteries?
doing some quick math i guess a 50 ohm virtual CT (25+25) on a 5V supply would only draw 100ma of current and add 12.5 ohms of unbypassed cathode resistance (right??)
in any event i like the ides that if you allow 2 ac paths... make sure they are the same.
dave
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Follow Ups
- Re: Ultrasonic AC for DHT Filament - dave slagle 03/7/0312:12:04 03/7/03 (3)
- Re: Ultrasonic AC for DHT Filament - Gary P 07:05:26 03/8/03 (2)
- Re: Ultrasonic AC for DHT Filament - dave slalgle 18:49:50 03/8/03 (1)
- Re: Ultrasonic AC for DHT Filament - Gary P 21:48:41 03/8/03 (0)
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