Hi all.
Recently built the Arachnid. Analog signal is fine. All controls work, get expected wet signals on settings 1-3. On 4-8 I am only getting dry signal. When turning mix to all wet, there is nothing. Checked voltages to corresponding pins per setting and am only getting around 2.3-2.6v per pin when set to 4-8. Verified no issues with the rotary switch continuity, diodes all test expected fv. This sort of makes sense, as the 1n914's have a voltage drop around .6v. Fv-1 Chip was ordered pre-soldered from pedalpcb.
Ive built a few fv1 circuits all successful (until this one), hundreds of analog pedals and preamps, and I repair amps. I am just not sure why settings 4-8 would produce absolutely no wet signal. I would imagine 2.6v per pin is enough to trigger the settings, but am I mistaken? Per the schematic, only the settings where diodes are in the 3.3v path to pins 16-18 dont produce wet signals.
Thanks for any help/replies.
Recently built the Arachnid. Analog signal is fine. All controls work, get expected wet signals on settings 1-3. On 4-8 I am only getting dry signal. When turning mix to all wet, there is nothing. Checked voltages to corresponding pins per setting and am only getting around 2.3-2.6v per pin when set to 4-8. Verified no issues with the rotary switch continuity, diodes all test expected fv. This sort of makes sense, as the 1n914's have a voltage drop around .6v. Fv-1 Chip was ordered pre-soldered from pedalpcb.
Ive built a few fv1 circuits all successful (until this one), hundreds of analog pedals and preamps, and I repair amps. I am just not sure why settings 4-8 would produce absolutely no wet signal. I would imagine 2.6v per pin is enough to trigger the settings, but am I mistaken? Per the schematic, only the settings where diodes are in the 3.3v path to pins 16-18 dont produce wet signals.
Thanks for any help/replies.
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