Yet another 12B4 line stage, or is the 12B4 better than the Grounded Grid..... - Page 80 - diyAudio
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Old 22nd August 2012, 04:53 PM   #791
6L6 is online now 6L6  United States
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Bump.

I'm breadboarding a 12B4 preamp and want this thread towards the top where it can be found easily.
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Old 22nd August 2012, 07:43 PM   #792
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Default Some thoughts

One point to note on the 12B4 power. It really helps drive the baseline noise floor to zero if you use a separate power supply. DC heaters are also a good idie.
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Old 22nd August 2012, 09:52 PM   #793
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The plan is CRCLC with a 20H choke and lots of capacitance.

I will try DC heaters as well. Thanks for the tip!
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Old 22nd August 2012, 11:16 PM   #794
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I have had a half-breadboarded, half-finished build of Eli Duttman's 12B4 amp in my system for the last few weeks. I built it on two chasses and converted to DC heaters. I am very pleased.
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