tried to DIY the "Carnhill Red" varnish with some food coloring,
what do you think, to light, too dark?
used an old 1166 term board with half the secs removed as we only need 600 ohms,
in back is REDDI box with transformer connections brought out to tag strip for easy hookup, so we have a test bed for different iron,
notice dual chamber bobbin, stock 1166 will run flat out to 100 K Hz, but it is low ratio, when you increase ratio to 4:1, the extra pri turns means the bumps will move to a lower freq,
a dual bobbin makes 4 windings out of 2, so we have a 4 section pri instead of 2, this puts the bumps back up above 100 k Hz so your dog will not get annoyed,
that is a cathode cap bypass switch on the left, it will save your Sony 7506 bones from popping a speaker when you play the 6 string bass,
what do you think, to light, too dark?
used an old 1166 term board with half the secs removed as we only need 600 ohms,
in back is REDDI box with transformer connections brought out to tag strip for easy hookup, so we have a test bed for different iron,
notice dual chamber bobbin, stock 1166 will run flat out to 100 K Hz, but it is low ratio, when you increase ratio to 4:1, the extra pri turns means the bumps will move to a lower freq,
a dual bobbin makes 4 windings out of 2, so we have a 4 section pri instead of 2, this puts the bumps back up above 100 k Hz so your dog will not get annoyed,
that is a cathode cap bypass switch on the left, it will save your Sony 7506 bones from popping a speaker when you play the 6 string bass,