cliffs_trip
Well-known member
Made a new power and bias supply boards for my old beater, shop amp. Tested them out and now trying to figure out how I’m gonna mount them.
What’s on *YOUR* workbench?
- Thread starter Bricksnbeatles
- Start date
andrewsrea
Well-known member
Very cool!
I learned digital switching tech in the early 90's and started into the Class D amplifier and got sidetracked pursuing my MBA. Do you find it on the same level of difficulty as analog?
Passinwind
Well-known member
Cool. I'm looking at doing a powered cab or two for stereo EFX myself. I've built several not so small Class D bass amps, and am looking forward to doing something a bit less involved.
danobeavis
Active member
Since I'm just using a generic Class D amp board from partsexpress.com it's about the simplest part of the project
I'm using this module:
And this power supply:
24V 5A DC Switching Power Supply AC Adapter with 2.5 x 5.5mm Tip + Plug
24V 5A DC Switching Power Supply AC Adapter with 2.5 x 5.5mm Tip + PlugSwitching power supplies are reliable, compact, and efficient. This regulated 24 volt DC 5A power supply provides ample current to run many popular devices and accepts inputs 100~240 VAC. Use it to replace a lost or damaged...
www.parts-express.com
Inputs go straight into the Class D amp board since I'm driving it with stereo effects which already take care of impedance matching and buffering the guitar input.
jessenator
Well-known member
Over the weekend I was struggling to get a stupid circuit from a verified schematic working on the breadboard. After about the 4th time of completely deconstructing and rebuilding, I gave up and moved onto something simpler to see what was going on—like OD 250 simpler. My primary goal was to test a bunch of single op-amp cans I got, and I was having the same issues: a load of noise.
And being the genius that I am, I hadn't bothered to simply check if the breadboard wired 1/4" jack still worked, because the wires were intact, on the correct contacts, and passed continuity. And the wires didn't appear reversed—even tried switching wire positions just in case, but no go.
After I swapped it out with a newly soldered backup, it was working. I was so peeved I just chucked the malfunctioning one without investigating further. No big loss other than my short term sanity and pride.
And being the genius that I am, I hadn't bothered to simply check if the breadboard wired 1/4" jack still worked, because the wires were intact, on the correct contacts, and passed continuity. And the wires didn't appear reversed—even tried switching wire positions just in case, but no go.
After I swapped it out with a newly soldered backup, it was working. I was so peeved I just chucked the malfunctioning one without investigating further. No big loss other than my short term sanity and pride.
Mentaltossflycoon
Well-known member
New sponge always looks weird on this filthy old weller.
steviejr92
Authorized Vendor
andrewsrea
Well-known member
Since I'm just using a generic Class D amp board from partsexpress.com it's about the simplest part of the project
I'm using this module:
And this power supply:
24V 5A DC Switching Power Supply AC Adapter with 2.5 x 5.5mm Tip + Plug
24V 5A DC Switching Power Supply AC Adapter with 2.5 x 5.5mm Tip + PlugSwitching power supplies are reliable, compact, and efficient. This regulated 24 volt DC 5A power supply provides ample current to run many popular devices and accepts inputs 100~240 VAC. Use it to replace a lost or damaged...www.parts-express.com
Inputs go straight into the Class D amp board since I'm driving it with stereo effects which already take care of impedance matching and buffering the guitar input.
Nice! I didn't even know you could source such a thing.
Nostradoomus
Well-known member
I’ve had this enclosure for a few years waiting for the right thing to put in it. Decided heck with it and did a green ringer/creepy baby (my one knob umbrella company mayo)/HM-2 eq blender. The gut shots aren’t pretty so I’ll spare em 
The LED is a superbrite white because what else would it be in this case.
The LED is a superbrite white because what else would it be in this case.
DailyDovetails
Well-known member
I have wanted to do this one since I started building pedals but it seemed too hard at first. A little less than a year later and putting it together feels like second nature. I appreciate the opportunity I have had to learn this hobby with all of you.……..hoping it works on the first try.
Nostradoomus
Well-known member
Oh and this Softii. After all that work I didn’t align the footswitch hole properly 
Still looks rad but damnit. Intentionally obfuscating camera angle ftw
Still looks rad but damnit. Intentionally obfuscating camera angle ftw
Passinwind
Well-known member
The ICEpower modules over there are a fully professional solution, and many include a built in line powered power supply and often an aux low voltage supply suitable for powering a preamp. Some of the ICE models are optimized for musical instrument applications too, FWIW.
Harry Klippton
Not Interested
Since y'all asked
tegendemuur
Well-known member
Changing the rope belt (has a little notch for the knot) and the light bulb (going to see if there's a LED version that fits).I guess the salty sea isn't good for rubber? Much respect to the ship's handyman who had to replace these on a wobbling ship!
tegendemuur
Well-known member
Hi cassette friend!<3 I sold all my digital recording devices, and only use the one below nowadays (Ebay photo from my purchase, that was cleaned and got fresh belts). Makes me quite, ehm focussed on what I record. In fact, I don't record songs anyway, just drone backing tracks and odd junk noise to play on top of; tape saturation glues oddly matched gear nicely together!
Shitty phone recordings is what I share online (not gonna open a 10,- sealed TDK SA-X (my weapon of choice) cassette for anyone else but myself!)
EDIT: Oh, yeah... Fun Fact. The exceptionally good sounding reverb in this unit? It's a Boss RV-2 pedal.
In the attachments you can see a screenshot from a teardown on Youtube. Those dimensions sure triggered a response! The guy mentions it's a Boss brand, and after some searching online I found an image of the guts of that pedal, which didn't sell well, that's exactly the same. It has the room, one of its two halls, plate and ping-pong delay of that pedal. No pre-eq either, but that's not necessary.
Attachments
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Mentaltossflycoon
Well-known member
Harry Klippton
Not Interested
Scrambler'd it.
That Sansui looks fantastic. I'm in the worship music biz these days (less solos but nobody spills beer on your board) and it's worth noting that we use tracks from time to time but generally always have a drone backing track that sets the mood between tunes. It's a thing. I'm either one of the guitar players/bass or I run sound and the drone track tends to be very simple but kinda critical piece of the modern presentation. I know none of this sounds very "service" but I'm using musician terms here.
Might be worth figuring out how to get into the "ambient" thing because I see more and more fairly big names getting into it. People seem to be getting away from simply coming up with cool synth pads and branching out into guitar stuff as well as "found" audio. Pretty fascinating stuff.
I'm probably the only guitar player worth his salt that doesn't have a pedalboard covered in Strymon stuff.
Might be worth figuring out how to get into the "ambient" thing because I see more and more fairly big names getting into it. People seem to be getting away from simply coming up with cool synth pads and branching out into guitar stuff as well as "found" audio. Pretty fascinating stuff.
I'm probably the only guitar player worth his salt that doesn't have a pedalboard covered in Strymon stuff.
