Cracked Iphone Screen; I’m dying!

My iPhone hit the ground! It's cracked, and doesn't work. Well, it finally happened. I was using my iPhone without a protective case, and I dropped it. Instant death! The screen was populated by solid colored streaks and only responded to swipes in certain spots.

If I was lucky enough to get to the home screen, the phone opened random apps and pushed random selections in an extremely violent and unpredictable manner. I couldn’t even power it down because the power off swipe confirmation was located in the dead zone of the screen. I had to let the phone die on its own so I could disassemble it. When not in use this thing lasted almost three days! (The wifi was turned on, so that probably helped it.)

I’m really just mad that the phone’s screen couldn’t be something resilient like plastic!!! Sure, glass feels really awesome, but it requires a huge case to protect it. I mean, really protect it! I don’t like cases. They get stuck in my pocket. Whatever happened to phones that weren’t so fragile??? My Nokia 3210 could have been hurled from a jet plane at cruising altitude and would fair better than an iPhone of any species!

usps_delivery_whenI’m in the process of repairing my iPhone. So far I have purchased a replacement screen on eBay for $34.00. It is due to be delivered on or near Friday, August 8, 2014. As of this writing, which is Friday, August 8, 2014, the United States Postal Service (USPS) hadn’t delivered it. I think they should just say this: “Expected Delivery Day: Sometime between now February 30th.” At least then, I could laugh and say, “Good one. At least you know you suck at predicting how things travel through your system.” It might even be funnier if they said this: “Expected Delivery Day: You’d get this faster if you moved to a large city with a freaking huge sort facility. Problem is that you live in a small town, and our ability to cut costs and run an efficient business means you’re going to have to wait a really long time to get your crap because we have to wait for enough mail to pile up before we put it on a truck to get it near your town.”

In all actuality, I’m probably just having withdrawals from my phone. I’ve been without it for a week, and I’ve realized one thing. There are a lot of apps that I don’t need on it anymore because I’ve lived this long waiting to get home to check them, and when I get on to check them, NOTHING IS THERE TO CHECK!!!

Tune in next time for a video of me repairing my iPhone…It’s sure to be a good one; It’ll be good and boring because I fixed it, or it will be good and funny because the fix didn’t work, and it made me say a bad word!

6DG6GT Tube Amp Design Update 6-12-2014

6DG6GT_Tone_StackI couldn’t stand it. I really didn’t like the tone stack that I included in the 6DG6GT amp. After reading the GMOON Instructable the other day, I found out that he used the Big Muff Pi tone circuit as shown in Duncan’s Tone Stack Calculator. I decided that I liked the simplicity of the Vox style tone stack. I’ve added this to the 1.5 version schematic. Check out the page dedicated to all of my tube amps here: Tube Amp Builds…all in one place. The image shows the new tone stack built on my existing turret board. Since this is a prototype, I suppose I can live with a few parts that appear to float in mid-air.

One thing to note is that I wired the bass pot backwards. This is because I really want all of my knobs to be at full clockwise for the twangy, overdriven sound. That’s pretty much where I’ll keep it especially since I usually play my guitar on the neck pickup which tends to lend to a darker sound.

6DG6GT Tube Amp Design Update 6-9-2014

6DG6GT Images and Descriptions

The amp appears to be complete. In case you missed it, here is the final schematic: 6DG6GT_Tube_Amp_SchematicV1_51 – June 19, 2014

Modifying VHT Special 6 Footswitch

Adding an LED Indicator

VHT Special 6 FootswitchI enjoy my VHT Special 6, and I can’t find many things that I would change about it. The one most annoying thing isn’t exactly related to the amp except that the footswitch that was sent with it is just a switch in a metal cone. Occasionally, I get caught trying to play a guitar solo without the boost enabled. I found that the switch of the original footswitch pedal is already modifiable to make it work with just a battery, an LED, a current limiting resistor, and a 1/4″ stereo audio jack.

VHT_Special_6_switchOriginally, I assumed that when the switch was closed the boost was enabled. I built a whole circuit and enclosed it in the enclosure. The 1/4″ stereo jack was used to connect the switch to the amp, and it also turned on the power supply which powered a transistor to invert the LED. Once assembled I found that I didn’t even need the transistor inverter. I already had the hole drilled for the jack so I kept it in. Here me out on this one…You could simply connect the switch to the original cable and opt not to install the jack, but if the button is pushed in this manner, the LED will illuminate. The stereo jack serves two purposes: it connects the switch to the amp, and it completes the negative path from the battery to ground to enable to LED to illuminate.

VHT_Special_6_original_switchThe original switch is a single pole dual throw (SPDT) switch with the ground soldered to the outside tab of the switch. The common is from the amp’s circuitry that, when grounded, disables the boost. In order for an LED indicator to work, the common connection has to be the ground. The image in the second paragraph shows this connection. I just desoldered the switch and removed it from the original footswitch housing because I chose to install it in a small box from Radio Shack. The enclosure is a 3″ x 2″ x 1″ plastic box. You might want to consider a larger box. It’s possible to fit it all in there, but it’s a tight squeeze, and the final layout is asymmetrical.

VHT_Special_6_modified_footpedal_schematicThe image to the left shows the schematic of how the new switch will work. When a mono guitar plug is inserted into the stereo jack, it completes the ground path for the battery. When the footswitch is pressed, it toggles between the amp circuit being grounded (boost off, LED off) and the LED being grounded (boost on, LED on). When the boost is off, the LED is not connected; It is left floating, which like like having an infinite sized resistor that completely block current flow through the resistor.

Bill of Materials (Radio Shack)

modified VHT Special 6 footswitchYou’ll want to do a dry layout before drilling holes in your box. I placed my 9v battery between the two screw posts on one end of the box. Then I laid out the jack, switch, and LED holder to make sure nothing touched. By following the wiring diagram, you’ll make each connection as shown. I used a bottom made of metal (not the original supplied one), so I hot glued the switch contacts. I also hot glued the battery wires down to ensure that they don’t get pulled out on accident. I drilled pilot holes using a 1/8″ drill bit, then I used a stepper bit and a whirly gig to take each hole to its final size. I decided to solder all the parts together after I installed them into the box.

This was an easy and cool project. It took about an hour to make the whole thing once I decided on the design. Once completed, you’ll never have to guess or audibly check to see if your boost is on. The LED will tell you!

VHT_Special_6_footpedal_wiringVHT Special 6 footswitch wiring diagram