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previous: Dr. Photon here's an example of an amp where t... -- 1123446203 View Thread

Re: 5VDC Heaters on 12AX7

8/8/2005 1:51 PM
Re: 5VDC Heaters on 12AX7
Using Schottky rectifiers like the 1N5820 will boost the voltage closer to 6V. Using higher current rectifiers will also usually boost the voltage by a fraction of a volt which will really help in a low voltage circuit.  
Dynaco used a voltage doubler with 1N400?'s and two 1000uF caps to run two 12AX7's. It gives pretty close to 12 volts. Just connect it to pins 4 and 5 and leave pin 9 open.

Kyle I trying the 7806 regulator, but I'... -- 8/8/2005 3:35 PM