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No Tubes? Why "Red Iron"? After trying many different chassis options, I came upon a chassis material that was:
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Review in Vintage Guitar!
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I settled on buying a 20 foot length of industrial / construction-grade "Red Iron" purling. Although it is much harder to work, it will not bend or warp and it's a great, conductive platform. Whatever amp I want to build, I just cut off the length needed. No need to drive 40 miles to go to a machine shop and try to emphasize that I need SQUARE corners (why is that so hard?). My operating philosophy? Build solid & with simplicity. I like small-wattage amps played on "12". The less knobs, the better. Volume, tone and master volume. I tend to spend more time designing the power supply than any other aspect. After working at Kendrick Amplifiers, I found that most problems were the result of inadequate build-quality at the foundation. A 50 watt amplifier needs much more than a 50 watt power supply. I've found that parts quality has gone up in some areas (like capacitors & wire), while in others it has gone down or wayward (resistors/transformers). I employ tube Hi-Fi techniques where they will do best. Such as: teflon cathode-bypass caps, low ESR power supply caps, metal polypropylene (and sometimes paper/oil) bypass caps. I like to keep signal wires as short as possible. That's why I don't particularly like tag/fiber boards, although they look good. But looking good and sounding good are 2 different things. I use true point-to-point wiring, using the tube sockets as tie points. Ultimately, it's better sound wise for the components to cross each other at perpendiculars, rather than side by side. No Combo's?! Rather than have you pass on buying one of my amps because it doesn't come with your favorite speaker, I've chosen to not make combos. That way, it leaves you to try your favorite. Be it 1-12", 2-10", etc. I do have some 1-12" enclosures (Avatar) that I have loaded with some vintage 10's/12's I've been hoarding. One speaker I recently picked up has an elliptical cone (can you say bell-like tones) with Alnico magnet. It would be perfect for something like a 5-10 watt amp. |
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Questions or Orders: Call us Direct |
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Paul R. Sanchez 213 S. Rio Grande Lockhart, Texas 78644 |
Phone: 512-376-2939 Cell: 512-801-2993 paul@redironamps.com |
| TubeWorks, LLC | |