Just dound this in the back corner of the closet. Never even opened the box. This was specified to use in a PP EL84 amp such as the dyna ST-35, but with different zeners and a resistor change it can work for almost anything you'd like. See the calculations on the welbornelabs.com web site.
$35 includes shipping in lower 48 and paypal.
-- Jim
Sold on diyaudio.
