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19th January 2010, 08:23 PM
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#1 |
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diyAudio Member
Join Date: Oct 2009
Location: Binghamton, NY
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Sweep tube suggestions
Greetings everyone,
I could use some suggestions on designing an amplifier with sweep tubes. I am looking for power in the 85-115 watt range. I have 750v @ 350ma and a regulated 250v @ 150ma available. I'm thinking of class AB1, or AB2 maybe even class B operation. This amplifier will be a modulator for an AM transmitter. Thanks, Ray |
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19th January 2010, 08:39 PM
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#2 |
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diyAudio Moderator
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Class B screen drive with pp parallel 17W sweeps will get you there. Go take a look at some of the schematics at davidberning.com.
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“Listening to records is like ****ing a picture of Brigitte Bardot.” - Sergiu Celibidache |
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20th January 2010, 12:31 AM
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#3 |
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diyAudio Member
Join Date: Jul 2005
Location: South Florida
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You could just build one of these:
Posted new P-P power amp design I get 125 watts per channel out of mine in stereo. Paralleling the two channels could generate twice the power with the appropriate load. You could build one channel using point to point construction. You don't need the power supply parts, just use what you have. Do you have a modulation transformer yet, and what are you using for the RF final amp?
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