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Those Magnificent Television Tubes
Those Magnificent Television Tubes
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Old 6th February 2019, 05:57 PM   #1101
thegamebusterpl is offline thegamebusterpl  Poland
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Originally Posted by Wavebourn View Post
I recently damaged 3 of EL34; 2 of them have fried control grids, one has it shorted to cathode. Do you think they still can be usable?
See if you can get any amplifitation by using the screen grid as the control grid and the suppressor as a screen grid. I wonder if you would get a kinked tetrode!
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Old 7th February 2019, 07:03 PM   #1102
Wavebourn is offline Wavebourn  United States
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Those Magnificent Television Tubes
Interesting idea. But I was thinking about a right handed triode mode. ;-)
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Old Yesterday, 11:00 AM   #1103
fatbattery is offline fatbattery  Australia
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Hi guys I haven't read this whole thread yet. I want to build the best either enhanced or dual grid drive se amp. Other than the now so expensive el509,pl519 what would be the best tube to try for high power with the best 2nd dominant profile. I am looking at 6JS6C,6lf6,6kd6 or 6lr6 the most powerful or top of the list currently. Will these tubes perform like the el509? good russian tubes can still be had and I am sure I could much more easily build a good amp from a schematic. But these beautiful nos western built tv tubes with some experimenting possibly with dual drive could I build something better? I also have some softone 9k with cathode feedback windings but they dont like more than 60ma so a recommendation for a smaller tube for those trans too would be helpful. Thanks
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Old Yesterday, 12:10 PM   #1104
Kay Pirinha is offline Kay Pirinha  Germany
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Default 6LF6?

Isn't this the Futterman tube? I gues they're scarce, hard to find and rahter expensive !


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Old Yesterday, 12:50 PM   #1105
fatbattery is offline fatbattery  Australia
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Its at the top of the list for screen drive there getting expensive like all the best sweeps are. I am thinking if a don't get a dozen soon they are going to go like el509,pl519 even the russian tubes are 20us and more per tube. When the ear859 came I wanted to buy one but couldn't afford it. I would like to build a ear849 tribute style amp even the same layout would be cool. Trans up front on each side.
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