I find the lack of valves disturbing (for you at least!!)Probably the most complex pcb design I've done on the pcb mill at home, I/O setup with power supplies for prototyping. UV printed solder mask and silkscreen, though the silkscreen didn't come out great. The board works though, so I'm happy.
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Absolute sorcery, my dudeI had been putting off setting this thing up because I was intimidated, but I finally sat down and got the pick-and-place machine running. I'm running it nice and slow for testing, but it still just placed 90x 0603 components in 4 minutes. Little bit faster than I can do by hand.
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That board is literally a 6.3V power supply and a 345V power supply. Guess what the 16 pin connector on the bottom plugs intoI find the lack of valves disturbing (for you at least!!)
Is wink emoji implying hitachi magik wand or other power tool? Im confused.That board is literally a 6.3V power supply and a 345V power supply. Guess what the 16 pin connector on the bottom plugs into![]()
The implication was that the 6.3V and 345V combination makes a pretty good setup for a tube power supply, but if you really want to overclock your personal massager, there's no law against that either.Is wink emoji implying hitachi magik wand or other power tool? Im confused.
To my eyes, it looks like one could also easily do the DEFX Turbo Arm in a 1590DD enclosure. That's a 1590D box, right?View attachment 119546
Starting on boxing the DEFX boards tonight. Yes, I realize no jacks are present.. yet.
Very nice pedal! How do you like the octave mod? For the bass mod is it a wire in place of R21?I built a Carcass
How much current it’s able to supply? I’ve been scratching my head and just waiting for a right moment with an amp build on hold for a year. Need to use 240-12VAC trafo for heater filaments as main PT available used series DC heaters previously and there’s no way it can supply enough current for heaters. 4x6L6GCs and 3x12ax7. Suppose power tube filaments should be series connected pairs in parallel and pre tubes paralled through pins 4&5?The implication was that the 6.3V and 345V combination makes a pretty good setup for a tube power supply, but if you really want to overclock your personal massager, there's no law against that either.
6.3V rail is good for 3A and 345V rail is good for like 30mA, this one is intended just for preamps. I have a supply that can do 5A of 6.3V and 140mA of 350V, but the components are physically bigger than I would want to fit in a pedal. They are still smaller than a comparable power transformer would be though, so that's neat. I use those in my tube tester where I need to be able to power things like a 6550.How much current it’s able to supply? I’ve been scratching my head and just waiting for a right moment with an amp build on hold for a year. Need to use 240-12VAC trafo for heater filaments as main PT available used series DC heaters previously and there’s no way it can supply enough current for heaters. 4x6L6GCs and 3x12ax7. Suppose power tube filaments should be series connected pairs in parallel and pre tubes paralled through pins 4&5?
I’m using traditional EI trafos. Don’t have any clue about 12VAC trafos current rating, but it’s heavy and salvaged from 80-90s PA/club light unit with metal/gas bulbs. Just gotta be careful and monitor temps under load when finally getting it in use!6.3V rail is good for 3A and 345V rail is good for like 30mA, this one is intended just for preamps. I have a supply that can do 5A of 6.3V and 140mA of 350V, but the components are physically bigger than I would want to fit in a pedal. They are still smaller than a comparable power transformer would be though, so that's neat. I use those in my tube tester where I need to be able to power things like a 6550.
EDIT: one thing to consider if you're looking at an SMPS for tube heaters though is inrush current, you should typically expect the tube to try to pull at least 200% of its specified current when the tube is heating up, so for 4x 6L6GC and 3x 12AX7 I would target at least 9A for a shared 6.3V heater rail if you're using an SMPS.
Thank you! The octave mod is just adding an SPDT switch to the 220K resistor for R14. Honestly isn't super audible for me in the context of the harsh noise setup I use it in, the Carcass/Yellow King is one of three pedals in a feedback looper. It was definitely more distinct (and sounded awesome) when I was testing with guitar during the build process, especially if you keep in mind Chuck's optimal settings for the mod.Very nice pedal! How do you like the octave mod? For the bass mod is it a wire in place of R21?
The most SMD you're ever soldered so farPretty sure this is the most SMD I’ve ever soldered…