vigilante398
Authorized Vendor
I was trying to decide which thread I wanted to keep spamming with this, then I remembered I have my own section here, so I can leave everyone else alone and post my garbage here.
I'll start with background: Six months or so ago I picked up a 15W "Stage Right" amp from Monoprice when they were on sale, and it came to about $203 shipped. You can't buy transformers and tubes for that, let alone a Celestion speaker, a reverb tank, a chassis, and a pretty well built cabinet. Hard to turn down when they come on sale. But I don't need a two-channel amp, especially a Marshall-voiced one. So this morning I decided to gut it and build something new inside.
I had thrown together a layout this afternoon, then when I got home I opened up the amp to take some measurements and adjusted the layout accordingly. One benefit to this being designed for easy assembly, it's incredibly easy to disassemble, I had it stripped down to a bare chassis with transformers in under 10 minutes.
So basically this will be the EF86 channel of the Matchless DC30 feeding into the 15W power section of the Matchless Lightning. You lose the reverb because I don't want to deal with it, but I left in an FX loop. Also the Monoprice has a lower voltage tap on the power transformer to feed the opamps for the reverb and FX loop (yes they're both opamp driven there's a handful of TL072 in there), and I decided to regulate it down to 12V and use it to drive LEDs. I had an idea I want to try out, and figured half a dozen LEDs would be useful. I will still have to drill a couple holes in the chassis to mount the PCB, but fortunately the chassis is aluminum and not steel, so it won't be too bad. I can reuse the existing holes for everything else I need. Once I've verified that this is a worthwhile project I'm planning to get a replacement faceplate so it looks nice and stuff.
Here's the chassis for now, still need to remove the power switch and jewel. I'm trying to decide whether I want to keep the attached power cord or if I'm motivated enough to cut a rectangular hole for an IEC power cable.
The useless garbage.
I'll start with background: Six months or so ago I picked up a 15W "Stage Right" amp from Monoprice when they were on sale, and it came to about $203 shipped. You can't buy transformers and tubes for that, let alone a Celestion speaker, a reverb tank, a chassis, and a pretty well built cabinet. Hard to turn down when they come on sale. But I don't need a two-channel amp, especially a Marshall-voiced one. So this morning I decided to gut it and build something new inside.
I had thrown together a layout this afternoon, then when I got home I opened up the amp to take some measurements and adjusted the layout accordingly. One benefit to this being designed for easy assembly, it's incredibly easy to disassemble, I had it stripped down to a bare chassis with transformers in under 10 minutes.
So basically this will be the EF86 channel of the Matchless DC30 feeding into the 15W power section of the Matchless Lightning. You lose the reverb because I don't want to deal with it, but I left in an FX loop. Also the Monoprice has a lower voltage tap on the power transformer to feed the opamps for the reverb and FX loop (yes they're both opamp driven there's a handful of TL072 in there), and I decided to regulate it down to 12V and use it to drive LEDs. I had an idea I want to try out, and figured half a dozen LEDs would be useful. I will still have to drill a couple holes in the chassis to mount the PCB, but fortunately the chassis is aluminum and not steel, so it won't be too bad. I can reuse the existing holes for everything else I need. Once I've verified that this is a worthwhile project I'm planning to get a replacement faceplate so it looks nice and stuff.
Here's the chassis for now, still need to remove the power switch and jewel. I'm trying to decide whether I want to keep the attached power cord or if I'm motivated enough to cut a rectangular hole for an IEC power cable.
The useless garbage.
it's been a minute since our last Chicago Suburbs Pedal Society meeting.
