Champing at the Bit

July 8th, 2011

Monster Wattage is the Answer

Life just gets better and better.

I received the parts for my new 5-watt Herzog/Fender Champ clone, and today I started working on it. I had such great results with the heavy aluminum channel on the 5f6a clone, I decided to use 4″ aluminum square tubing for the new project. And I’m using a tube rectifier, just in case it makes a sonic difference when I use the rig as an amp. I’m told it won’t, but it will still look cool, and that’s important.

The next photo shows the chassis after I trimmed it with a table saw. I just made a rectangular hole for the power transformer, using the milling machine, but I’m too lazy to take a photo. Now I’m waiting for my giant unibit to arrive so I can drill the tube holes instead of using a hole saw.

My buddy from church settled on an amp: the Trainwreck Express. This is one of those legendary small-shop amps, like the Dumble Overdrive Special. A little outfit in the Northeast made them, and then the maker died. Now people go over them with microscopes and try to copy them.

It’s supposed to be a high-gain amp with a temperamental circuit. They say the overdrive goes nuts with a small twist of a guitar pot. It’s said to be better for rock than blues, but my friend says it’s what he wants.

Next week we’ll order parts.

I’ve learned a ton since I made the 5f6a, so this new amp will have new intelligent features in it, like heater wires that are arranged correctly to minimize hum. I’m referring to the Champzog. The Express is another story. People are telling me to do exactly what everyone else has done, if I don’t want trouble.

Here’s something amusing and possibly useful. The Express is a head (like all Trainwrecks), and it’s traditionally made of lacquered hardwood. Someone found that you can go to Woodcraft.com and order a nice dovetailed cherry drawer for $56, in the exact dimensions of an Express cabinet. Good info to have.

I love it when new amp parts arrive. I want to pour them out on my bed and roll in them. But I’m not that mental yet.

I’ll bet anything I end up making more amps for the guys at church.

Time to unwind with a Coke. This has been a phenomenal day.

3 Responses to “Champing at the Bit”

  1. Virgil Says:

    I’m confused…
    .
    How are you going to do the wiring inside a 4″ tube?

  2. Virgil Says:

    One more thing…Steve…
    .
    Have you acquired a small hand held or portable oscilloscope/graphing multi-meter yet?
    .
    Something like the Fluke 123/124 series is on my wish list.

  3. Steve H. Says:

    If you look at the photos, you will see that it’s not a tube any more. I cut the bottom of it off and reduced the height.
    .
    I have a cool old Hitachi oscilloscope I got on Ebay. I haven’t used it much, though. Here’s a great example of God preparing a person for his future. When I bought the oscilloscope and my electronics tools years ago, I decided to build a couple of kit circuits. One of them was a function generator! I also have a lab power source..
    .
    Here’s something cool for amp nerds. For $15, some Chinese Ebayer sent me a multimeter that measures picofarads accurately. That includes shipping and batteries. Don’t even ask what a big-brand picofarad meter costs. And it also does all the other multimeter stuff.