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Search: Posts Made By: blandguitar
Forum: Gear Building & Customizing 06-28-2012, 07:03 PM
Replies: 63
Views: 2,420
Posted By blandguitar
I'm an American, New Jersey. I'm simply trying to...

I'm an American, New Jersey. I'm simply trying to learn Welsh.

You're call, I'd just stick with what you've got, might be cool. Tons of Champ clones out there. And for the last point, fair 'nough.
Forum: Gear Building & Customizing 06-27-2012, 08:28 PM
Replies: 63
Views: 2,420
Posted By blandguitar
Why not construct a small test circuit of a power...

Why not construct a small test circuit of a power supply, variable grid voltage, and resistors/caps to see whether it is the tube or not? A higher voltage on the plate will just give you a larger...
Forum: Gear Building & Customizing 06-27-2012, 10:38 AM
Replies: 161
Views: 17,570
Posted By blandguitar
Why not run that 470k resistor to 1/2B+? Rather...

Why not run that 470k resistor to 1/2B+? Rather than cathode-bias that, you should get more linear operation putting it idle at 1/2 supply voltage.
Forum: Gear Building & Customizing 06-24-2012, 05:01 PM
Replies: 161
Views: 17,570
Posted By blandguitar
Increasing the resistance will decrease the...

Increasing the resistance will decrease the cutoff frequency.

If we're assuming 3pF of capacitance, and another ten added on manually..
F=1/(2*pi*R*C)=1/(2*pi*13*10^-12*68*10^3)=1.8x15^5 or 180kHz...
Forum: Gear Building & Customizing 06-23-2012, 12:32 AM
Replies: 161
Views: 17,570
Posted By blandguitar
You should invest in his preamp book, quite good...

You should invest in his preamp book, quite good for an intro to designing preamp stages. It includes the PI and even global feedback. Also check out Graphical Construction for Vacuum Tube Circuits...
Forum: Gear Building & Customizing 03-14-2012, 08:21 AM
Replies: 7,358
Views: 231,075
Posted By blandguitar
That's a pretty neat looking wah, how do you like...

That's a pretty neat looking wah, how do you like having the controls towards the front of the wah? I usually prefer them back towards the heel.

There's no need to bump 4 hours later. The top...
Forum: Gear Building & Customizing 03-13-2012, 09:08 AM
Replies: 7,358
Views: 231,075
Posted By blandguitar
The idea is that when using and ON-OFF-ON that it...

The idea is that when using and ON-OFF-ON that it doesn't connect anything in the center position, meaning it will not add anything. Just change the values in the diagram to what you want to use....
Forum: Gear Building & Customizing 03-13-2012, 09:00 AM
Replies: 63
Views: 2,420
Posted By blandguitar
Lol, hey. :wavey: Also, if you want to filter a...

Lol, hey. :wavey: Also, if you want to filter a little better, you could parallel the PS filter caps with 100n film caps. You may not even notice a difference though.
Forum: Gear Building & Customizing 03-12-2012, 11:26 PM
Replies: 63
Views: 2,420
Posted By blandguitar
Are they special nuts? Why not just make a run to...

Are they special nuts? Why not just make a run to the local hardware store? Also, congrats on starting your first build.
Forum: Gear Building & Customizing 03-12-2012, 09:27 PM
Replies: 7,358
Views: 231,075
Posted By blandguitar
One of my favorites to do with wahs it to use an...

One of my favorites to do with wahs it to use an ON-OFF-ON switch, so have your .01, then parallel it with a .022/.033 and .056 caps. It's been a little while since I've experimented with wahs, so I...
Forum: Gear Building & Customizing 02-26-2012, 08:57 PM
Replies: 46,418
Views: 539,736
Posted By blandguitar
I trained my old cat to do things. Haha, she'd...

I trained my old cat to do things. Haha, she'd even attack on command, but she'd wait until the person wasn't paying attention. Good stuff.

Hi guys, been a little off-the-grid lately. Haven't really...
Forum: Gear Building & Customizing 01-16-2012, 11:34 PM
Replies: 3
Views: 176
Posted By blandguitar
I'd essentially a patch cable with a capacitor to...

I'd essentially a patch cable with a capacitor to prevent DC from traveling. http://www.diystompboxes.com/pedals/audioprobe.jpg
Forum: Gear Building & Customizing 12-25-2011, 11:50 AM
Replies: 46,418
Views: 539,736
Posted By blandguitar
Merry Christmas!

Merry Christmas!
Forum: Gear Building & Customizing 12-09-2011, 10:56 PM
Replies: 46,418
Views: 539,736
Posted By blandguitar
Jim, that's exactly what it's there for iirc, to...

Jim, that's exactly what it's there for iirc, to reduce the error as much as possible. There's also a current bootstrap it appears. http://sound.westhost.com/amp_design.htm#i-src-bootstrap

So it...
Forum: Gear Building & Customizing 12-09-2011, 09:05 AM
Replies: 46,418
Views: 539,736
Posted By blandguitar
Looks interesting Jim, the differential input to...

Looks interesting Jim, the differential input to the power amp is neat. Is it taking the signal at the speaker output and feeding it back to the other input? Are you going to match the power trannies...
Forum: Gear Building & Customizing 12-02-2011, 07:39 AM
Replies: 46,418
Views: 539,736
Posted By blandguitar
Got a scheme?

Got a scheme?
Forum: Gear Building & Customizing 11-27-2011, 12:54 PM
Replies: 46,418
Views: 539,736
Posted By blandguitar
Jason, Penn State Industries sells relatively...

Jason, Penn State Industries sells relatively cheap lathes that hold up fine if your only wanting to do pens on it. You're not an idiot when it comes to tools like kids in shop class, I don't see why...
Forum: Gear Building & Customizing 11-15-2011, 10:04 PM
Replies: 23
Views: 930
Posted By blandguitar
Go to the pin on the tube socket that goes to the...

Go to the pin on the tube socket that goes to the cathode. Follow it from the tube to ground.
Forum: Gear Building & Customizing 11-12-2011, 09:56 AM
Replies: 6
Views: 324
Posted By blandguitar
Don't forget about the resource thread for other...

Don't forget about the resource thread for other places as well. I spent a lot of time collecting those links..
Forum: Gear Building & Customizing 11-11-2011, 06:27 PM
Replies: 23
Views: 930
Posted By blandguitar
The cathode resistor is the resistor from the...

The cathode resistor is the resistor from the cathode of the power tube to ground. Find where the cathode of the power tube is, find the resistor that connects it to ground. Doesn't matter, you'll...
Forum: Gear Building & Customizing 11-09-2011, 07:01 PM
Replies: 6
Views: 324
Posted By blandguitar
...

http://www.mouser.com/Search/Refine.aspx?Ne=254016&N=1323038+254149+4292839231
Forum: Gear Building & Customizing 11-09-2011, 07:00 PM
Replies: 23
Views: 930
Posted By blandguitar
You only need the voltage from plate to cathode...

You only need the voltage from plate to cathode and the current through the tube (the same as the current through the cathode resistor. The voltage across the tube, which is the same as the high...
Forum: Gear Building & Customizing 11-08-2011, 10:03 PM
Replies: 23
Views: 930
Posted By blandguitar
You can; however, each tube will draw a different...

You can; however, each tube will draw a different current based upon the grid-cathode voltage, so the power dissipated through each tube is really not able to be determined without the current. With...
Forum: Gear Building & Customizing 11-07-2011, 07:34 PM
Replies: 23
Views: 930
Posted By blandguitar
The grid and cathode will be connected to the...

The grid and cathode will be connected to the pins of the tube. Pin 5 is the grid, pin 8 is the cathode; however, measuring the voltage across the cathode resistor(s) is truly a better method as it...
Forum: Gear Building & Customizing 11-06-2011, 08:26 PM
Replies: 23
Views: 930
Posted By blandguitar
My method will tell you the voltage from grid to...

My method will tell you the voltage from grid to cathode, due to variations in the tubes themselves, most people use a current method rather than voltage as each tube will pull a different current...
Forum: Gear Building & Customizing 11-04-2011, 02:42 PM
Replies: 23
Views: 930
Posted By blandguitar
30-50W iron is fine, you can spend 50 bucks and...

30-50W iron is fine, you can spend 50 bucks and get an XYTronics and have a digital temperature setting, spend another 20 and you can get one with a built in fume extractor if you plan on soldering a...
Forum: Gear Building & Customizing 11-03-2011, 07:02 AM
Replies: 7,358
Views: 231,075
Posted By blandguitar
It depends on the internal guts of the wah. I...

It depends on the internal guts of the wah. I never opened mine up back when I had one. The other option is to create a true bypass box, which would consist of an input and output jack, and a loop...
Forum: Gear Building & Customizing 11-02-2011, 10:01 PM
Replies: 46,418
Views: 539,736
Posted By blandguitar
You can serve in some places, just not partake,...

You can serve in some places, just not partake, but I dunno the laws there. Plus, there's good money in it if you are able to do it.

I agree with the not lying. My boss and I live a two or three...
Forum: Gear Building & Customizing 10-27-2011, 06:38 PM
Replies: 46,418
Views: 539,736
Posted By blandguitar
Have you been checking classifieds? Hell, just go...

Have you been checking classifieds? Hell, just go up and down blocks walking in asking if they're hiring, that's the best way to get the seasonal work down here. I've never really jammed, I barely...
Forum: Gear Building & Customizing 10-27-2011, 05:44 PM
Replies: 46,418
Views: 539,736
Posted By blandguitar
I know that, but that electric one has 5 tuning...

I know that, but that electric one has 5 tuning pegs..

Things are going alright, gotta right about 30 pages between two of my classes, got 20 something due Monday, and 8 due Tuesday.

How're things...
Showing results 1 to 30 of 500

 
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