Posted by Sam P. on January 23, 2003 at 11:57:16

In Reply to: Question for those building Steve bench's tube crossover posted by Garland on January 23, 2003 at 10:38:18:

put your email up and I can scan an image to you. Just a redraw of the Eico HFT-94 AM tuner power supply. 6X4 full wave rectifier tube, and a cap input RC filter. Those 6DJ8's are running class A, and won't vary their current draw much during normal operation, so once you get a standard unregulated power supply "dialed in" it will hold the B+ steady anyway. I went with Solen polycaps for the 40,20, and 20uF caps needed. Let me know if you need it.
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DC filament supply is straight from the ratshack book, using a 7806 3 term. regulator gives a clean 5.95vDC output. HEATSINK mandatory.
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Hum problems were recently mentioned regarding this circuit, BTW...Sam