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- gmoon commented on gmoon's instructable Isolation Transformer Upgrade for Old Guitar Amps
- gmoon commented on gmoon's instructable Applying a Mirror Finish (by Hand)View Instructable »
Awesome -- you are welcome!
- gmoon commented on gmoon's instructable Applying a Mirror Finish (by Hand)View Instructable »
This project was all done by hand...it can be done!
- gmoon commented on gmoon's instructable Guitar Tube AmpView Instructable »
Those values (replacing 220 ohms with 1K) are in the power supply itself, which is chained to get different voltages. Look at the PS schematic rather than the preamp. I.E., it's before the the plate resistors. Sorry I didn't see this earlier. We've been in remodel mode for 6 months...
- gmoon commented on gmoon's instructable The ValveLiTzer: Low-voltage Tube BoosterView Instructable »
It should be OK. (sorry for the delay)
- gmoon commented on seamster's instructable Simple Welding CartView Instructable »
Yeah, I definitely want to learn the solid core/gas stuff, ASAP, too. Thanks for the inspiration!
- gmoon commented on seamster's instructable Simple Welding Cart
Dang! I bought the same (Handler 140) welder four months ago! But we also bought a new house in July, so my days are filled with painting, plumbing, wiring, etc., etc., not happy welding projects. Still haven't the Hobart! I figure I'll start with the flux core first...looks like you're already using gas (jealous).
View Instructable »Oops. Used. haven't used the Hobart.
- gmoon commented on gmoon's instructable Applying a Mirror Finish (by hand)View Instructable »
Sorry, I don't know. Steel is WAY harder than lacquer, and I imagine that power equipment is the best way to proceed.
- gmoon commented on gmoon's instructable Isolation transformer upgrade for old guitar ampsView Instructable »
My bad for not answering sooner -- busy!Not really with one additional 35w4 -- those are single diodes (fine for half-wave). A true bridge is four diodes. Tube amps with full rectification do so with an expensive trick: they use dual rectifier tubes (5y3, 5u4G) together with a center-tapped HV transformer (like 300V,0,-300V). The voltage swings positive & negative around that center tap, and half the available voltage is dropped -- i.e., end-to-end on a 300,0,-300 PT, the full voltage swing is 600V! (and the output would be 600V with a standard SS four-diode bridge).They did this because :A) they absolutely knew full wave was better.B) Iron and copper were once much cheaper than tube rectifiers. Now the opposite is true -- metal is expensive (and heavy) but sand (silicon) semiconducto…
see more » - gmoon commented on gmoon's instructable Add Diode-Clipping Distortion to your Guitar AmpView Instructable »
You might look at a "Tube Screamer" schematic, which uses diodes in a feedback loop, for "soft clipping."
- gmoon commented on gmoon's instructable Guitar Tube AmpView Instructable »
That's it!
- gmoon commented on gmoon's instructable Guitar Tube AmpView Instructable »
Look online for the Gibsonette schematic. The later versions were parallel single ended like this, but with 6v6's.But a 6v6 push-pull topology might be worth exploring, if it's a two tube 6V6 output amp is you want (like the classic Fender Deluxe). It would be louder, and the output transformer would be even easier to source.
- gmoon commented on gmoon's instructable Applying a Mirror Finish (by hand)View Instructable »
If streaks remain, it probably wasn't rubbed out enough at the end (as it drys). Or maybe you used a little too much...
- gmoon commented on gmoon's instructable Applying a Mirror Finish (by hand)View Instructable »
Hi -- hope I can help.You can use the wet/dry paper dry (why they call it wet/dry!), even though I usually use it wet. The wet technique probably makes it easier; lubricates the paper, keeps dust from clogging it, etc. Wet, it can be tricky to not sand through your finish layers, though.It's important to progress up through the finer grades of paper. I would want to prep a fine finish with over 1000 grit, wet. Probably 1200 to 2000 grit is a good idea. And sanding alone won't do it. Rubbing compound is a must, and you're using that. I've not used every type of rubbing compound out there. I cannot guarantee they all work the same, yet I was able to develop a "feel" for it's use, and that final bit of physical resistance seemed to be where the compound did the most work. Also, it'…
see more » - gmoon commented on gmoon's instructable Applying a Mirror Finish (by hand)
The paint was sanded where repairs were made to the original finish, then a little prep sanding was done overall before the clear. Between clear coats, some wet sanding was done due to "orange peel" effect, when it was needed -- not after every coat.Any major scratches need to be dealt with before clear, of course.
View Instructable »I'm not sure about that, as an explanation. But I'm not certain it's wrong, either, depending on how the auto painter was using the language, etc.This is how I think about it (I was trained and worked as a photographer for 35 years). There are basically two types of reflectivity (although everything is a mixure of both):-- Diffuse, which is the pigment itself-- Specular, which is the surfaceA glossy black and a matte black may have identical pigments, but the glossy paint will always appear darker (actually, have a wider range of contrast), except when the surface is reflecting a large light source. In that case, the pigment beneath a glossy surface is washed out by the other light source. Think of watching a big-screen TV with a picture window right behind you. The reflection makes it di…
see more » - gmoon commented on gmoon's instructable The ValveLiTzer: Low-voltage Tube BoosterView Instructable »
Awesome, thanks. Make something cool!
- gmoon favorited H.P.Wagon #2 by ganeshruskin
Hi Mike. Sorry about the late reply. I checked Ibles only a week or so ago, and didn't see your post (? who knows).Cool, I see you built from scratch using the Silvertone schem. I don't doubt the tubes can take a bit higher voltage than spec'ed. I think they were all +- 10% back then, and many could be abused further. I don't think you'll have any problems at all with the resistors.Working on replacing the baffle board of my Silvertone 1482 today...Good luck and rock on.