What’s on *YOUR* workbench?

Got a combo amp and want to mod: add switched input jacks in front of the power amp and switched output jacks out of the preamp. And of course a master volume, which is a must have as well. Thought to print the whole thing out on A3 and get better at tracing schematics and see where those jacks should go.

Probably will become an "assure me" thread once I got my hands on the same vintage jacks like this thing has.

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Broke out the fancy colored pens and went at it on paper to wrap my head around these amps.

Diagrams and photographic inspection of the pcbs gave me confidence that I can lift the two identical pre-amp channels from the VR5000 and insert them in the entirely stereo circuit of the VR4000. It's mainly just messing with ribbon cables.. This way I get my 2x25W 10" output preferences, while having two identical pre-amps instead of the silly clean and dirty channel that VR4000 comes with. The 2 para EQ per channel are a nice addition too! Only thing I'll add is a passive (?) master volume knob, and switched jack insertions between the pre-amp and effects, and the effects and the power amps. Nothing too strange. Wouldn't be possible without the blessings of late 80s through-hole populations. Must call it the VR9000, ofcourse.

Mockup:

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The amps themselves will arrive in two weeks!

Screenshot 2024-09-29 at 15-22-22 ≥ Yamaha VR5000 — Versterkers Bas en Gitaar — Marktplaats.png Screenshot 2024-09-29 at 15-22-43 ≥ Yamaha VR4000 gitaarversterker — Versterkers Bas en Gitaar...png

The only strange thing for now is that the mono unit has high/low inputs, while the stereo version hasn't.
 

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Just finished restoring my 4th generation iPod. Used some 2000 grit sandpaper and brasso to remove some gnarly scratches from the top plastic, replaced the battery with a fresh 1200mAh one, and swapped the old 20GB hard drive for a 256GB MicroSD card. Boxed it back up, loaded it up with ALACs, and it's better than ever.

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PedalBuilder said:
Just finished restoring my 4th generation iPod. Used some 2000 grit sandpaper and brasso to remove some gnarly scratches from the top plastic, replaced the battery with a fresh 1200mAh one, and swapped the old 20GB hard drive for a 256GB MicroSD card. Boxed it back up, loaded it up with ALACs, and it's better than ever.
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Heck yeah, those 4th gens are great. IME, they polish up a lot better than the 5th gens for some reason. And even the color screen version is readable in sunlight without a backlight, which feels like such a tiny miracle these days.

It's incredible that you can still just plug one in and manage it in the most recent version of MacOS. I've read it's pretty easy to manage them in Linux as well; apparently there's a desktop music app for Linux that can convert FLAC to ALAC in real time as it loads the files onto the iPod, which might finally wean me off of the trashfire that Apple Music has become 😂
 
Stickman393 said:
Had been working on getting this guy back in working condition.

The serial number indicates that it's from the 1920s. The motor works just fine, all this thing needed was a new belt, new wiring, and a new tire for the bobbin winder.

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Big sewing machine fan. I don't sew much, but old machines have a habit of following me home. They're so beautifully made, and I can't stand seeing them in the trash. I got rid of a bunch recently, but there will probably be more. My favorite, and the one I use if I actually need to sew something is a 1957 Singer Slant-o-matic mounted in a table. Got it at a yard sale for 7 bucks.
 
I did my first resin pour on an enclosure for a destiny behemoth. It was cloudy and bad. I did a 2nd pour on it and it looked great.

But what I didn’t consider is how little play you have with the 9mm pots and the belton brick.

So that 2nd pour made the distance long enough that I can’t get the washers to catch the threads. Thinking about removing a circle of resin big enough for the washer to sink down, but small enough to get covered by a small knob

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