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Base theme by DesignModo & ported to Powered by Vanilla by Chris Ireland, modified by the "theFB" team.
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Note we say the Reactance in Xc rather than the resistance because a capacitors opposition to current depends on the frequency of the current .... a resistors opposition to current isn't bothered by the frequency
Yeah I've seen that zero volume bleed happen on a Blues Deluxe, I assume the pot doesn't get down to zero Ohms on the wiper due to bad contact of the wiper on the taper or corrosion but I expect @ICBM knows exactly what causes it
I agree that a treble pass cap might not work that well with the V40 - the one I heard seemed to have virtually no top-end at all, as if it had all been deliberately rolled off.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
There are various different ways, including capacitance between closely-arranged wiring, unwanted resistance in a common ground connection, imperfect filtering in the power supply, etc. This one must have been in the valve itself since changing it fixed it.
I’m not sure what the exact mechanism in the faulty valve was, but the result was that a tiny bit of the signal from the first gain stage got into the second. When the volume control which is between the two is set just-so they more or less cancel out, because they're out of phase. Below that point the spurious signal is audible (because the genuine one is turned right down), and above it the genuine one dominates.
Hope that makes some sense!
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
But there really is no need, the HRD loop is very well-buffered and doesn't suffer from any significant tone loss, probably even if you use miles of cable.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
I was just thinking of using it for ease of switching my board between amps. It's wired in pretty tight at the moment and getting to the input of the first pedal in the FX loop section of my board is a pain without lifting the velcro. I should buy a board with more space really!
Quite a bit. The drive channel isn't a separate channel, it's a boosted mode on the clean channel - lower gain, in fact it barely breaks up unless it's maxed - and the clean channel itself is slightly 'hairier'. The whole amp is voiced a bit differently too, a little looser and slightly more scooped.
If you've got the Blues you're really missing a trick by not using the drive channel, even if you don't really use it for more dirt - it's ideal as a solo boost. But in that case it still doesn't need the loop to put the FX in, since it won't have much more gain than the clean channel.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein