Tube DIY Asylum

RE: schematic for low voltage 12AU7 pre-amp?

198.151.41.203

In Reply to: RE: schematic for low voltage 12AU7 pre-amp? posted by tmoble on May 26, 2009 at 09:14:03

It is used to elevate the heater above ground so that the heater to cathod voltage limits of the tube are not exceeded. Always an important consideration in a SRPP design.

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