Re: Jesus; Mary and Joseph; will he never go home!

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Posted by Wayne Parham [ 68.91.14.34 ] on August 02, 2004 at 18:36:57:

In Reply to: Re: Jesus; Mary and Joseph; will he never go home! posted by manualblock on August 02, 2004 at 18:05:51:

Let me see if I understand you about the DRD amp:

1. The filament on the 300B is driven with DC. It comes from a transformer winding that is rectified and filtered.

2. The driver tube heaters are driven with AC that comes from a different transformer winding than the 300B filament supply.

Is that right? Do you happen to know the filament voltages for each tube? Do you know the plate voltages? Is there a single rectifier for B+ for all tubes?


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