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Search: Posts Made By: Invader Jim
Forum: Gear Building & Customizing 03-27-2015, 02:20 AM
Replies: 3
Views: 373
Posted By Invader Jim
Old table radio tubes aren't worth much. There...

Old table radio tubes aren't worth much. There were millions made and are still very common. They're not totally useless, though.

http://www.ultimate-guitar.com/forum/showthread.php?t=1664663
Forum: Gear Building & Customizing 02-01-2015, 01:30 AM
Replies: 6
Views: 200
Posted By Invader Jim
There's nothing wrong with the switch or guitar,...

There's nothing wrong with the switch or guitar, it's just how the wiring works. If you really don't like it, swap the wires going to lugs 2 and 1 of each volume pot (looking at it from the back)....
Forum: Gear Building & Customizing 01-30-2015, 04:51 AM
Replies: 7
Views: 299
Posted By Invader Jim
I don't know about all the audiophool tone...

I don't know about all the audiophool tone nonsense but assuming the coil is fully saturated with the potting material then it should do the job. The reason wax is commonly used is to make it easy to...
Forum: Gear Building & Customizing 01-29-2015, 06:02 AM
Replies: 6,917
Views: 373,720
Posted By Invader Jim
For a killswitch you want a push-to-make switch....

For a killswitch you want a push-to-make switch. You'd wire it across the signal and ground. Pressing it will short out the guitar, leaving dead silence (any noise still heard while the button is...
Forum: Gear Building & Customizing 01-29-2015, 05:57 AM
Replies: 14
Views: 444
Posted By Invader Jim
Marketing gimmick, nothing more.

Marketing gimmick, nothing more.
Forum: Gear Building & Customizing 01-29-2015, 05:55 AM
Replies: 12
Views: 494
Posted By Invader Jim
^ Actually the AC equivalent of resistance is...

^ Actually the AC equivalent of resistance is reactance. Impedance is the *total* opposition to current flow in a circuit. When AC is involved, it is the sum of resistance and reactance.

Anyway,...
Forum: Gear Building & Customizing 01-24-2015, 03:08 AM
Replies: 3
Views: 199
Posted By Invader Jim
Ok, well the bypass switch probably bypasses the...

Ok, well the bypass switch probably bypasses the entire circuit (barring some crazy switching or whatever) so what you'd have to do is rewire it to bypass only the wah circuit, leaving the boost...
Forum: Gear Building & Customizing 01-23-2015, 09:03 PM
Replies: 3
Views: 199
Posted By Invader Jim
Can you get a schematic?

Can you get a schematic?
Forum: Gear Building & Customizing 01-21-2015, 08:45 PM
Replies: 6,917
Views: 373,720
Posted By Invader Jim
Polepiece type doesn't affect the coil resistance...

Polepiece type doesn't affect the coil resistance of a pickup. The polepieces are nothing more than a way to concentrate the permanent magnet's magnetic field directly under and around the...
Forum: Gear Building & Customizing 01-21-2015, 08:36 PM
Replies: 4
Views: 267
Posted By Invader Jim
No offense, Tallwood13, but that is quite...

No offense, Tallwood13, but that is quite possibly the worst description of how a tone control works that I have ever read...

And what's this about heat sinking higher end caps? Is that just a typo?
Forum: Gear Building & Customizing 01-21-2015, 08:32 PM
Replies: 5
Views: 672
Posted By Invader Jim
Never heard of faked EMGs before... It might be...

Never heard of faked EMGs before... It might be worth mentioning that I have it on pretty good authority that the commonly-available EMG 81 schematic (the first two image results if you google "emg...
Forum: Gear Building & Customizing 01-13-2015, 11:24 PM
Replies: 4
Views: 224
Posted By Invader Jim
It will most-likely work (haven't tried it myself...

It will most-likely work (haven't tried it myself but this guy knows his stuff).

http://www.ultimate-guitar.com/forum/showthread.php?t=747311

That thread is very old, btw. The OP doesnt even come...
Forum: Gear Building & Customizing 01-12-2015, 08:12 PM
Replies: 5
Views: 310
Posted By Invader Jim
Usually people start with a Fuzz Face because it...

Usually people start with a Fuzz Face because it is/was so popular and has so few parts, but that's not really a good one to start with because it requires special transistors that must be very...
Forum: Gear Building & Customizing 01-09-2015, 06:31 AM
Replies: 6
Views: 226
Posted By Invader Jim
I may try it out too. I love clever stuff like...

I may try it out too. I love clever stuff like this. Is it OK if I add this to the tone controls article in the wiring thread?
Forum: Gear Building & Customizing 01-08-2015, 06:44 PM
Replies: 6
Views: 226
Posted By Invader Jim
Interesting. Didn't go into too much detail...

Interesting. Didn't go into too much detail though, or even post a diagram of the wiring as he did it. But yeah, it is basically just a bass-cut on a phase-reverse switch. The bass-cut high-pass...
Forum: Gear Building & Customizing 01-08-2015, 06:35 PM
Replies: 4
Views: 206
Posted By Invader Jim
Could you make a diagram of how it is currently...

Could you make a diagram of how it is currently wired (not how it should be wired)? It'd be a lot easier on us...
Forum: Gear Building & Customizing 01-07-2015, 08:09 PM
Replies: 6
Views: 226
Posted By Invader Jim
So it's just a plain old bass-cut but on a...

So it's just a plain old bass-cut but on a phase-reverse switch?
Forum: Gear Building & Customizing 01-05-2015, 11:33 PM
Replies: 6,917
Views: 373,720
Posted By Invader Jim
Well they say that wiring the tone control to the...

Well they say that wiring the tone control to the input side of the volume gives it more punch and wiring it to the output side sounds sweeter. Someone on the SD forums compared it to plugging into...
Forum: Gear Building & Customizing 01-05-2015, 10:07 PM
Replies: 6,917
Views: 373,720
Posted By Invader Jim
I thought it would be easier for novices to...

I thought it would be easier for novices to understand if I drew it that way. I don't think it really matters if the tone circuit comes before or after the volume pot, but tone freaks will tell you...
Forum: Gear Building & Customizing 01-05-2015, 12:57 AM
Replies: 6
Views: 378
Posted By Invader Jim
Well the amp volume and input signal were both...

Well the amp volume and input signal were both dimed. Turning down the volume about 1/3 from max cleans it right up. Diming the amp can give some grit from a guitar or phono but the thing is pretty...
Forum: Gear Building & Customizing 01-04-2015, 09:17 PM
Replies: 1
Views: 408
Posted By Invader Jim
Tweed-style tone...

Tweed-style tone control
http://oi57.tinypic.com/2uzpli1.jpg
This is another modification of the "default" control. It's similar to what was originally used in old Fender tweed amps. It's sort of a...
Forum: Gear Building & Customizing 01-04-2015, 09:17 PM
Replies: 1
Views: 408
Posted By Invader Jim
Some guitar tone controls and how they work

---Some guitar tone controls and how they work---

DO NOT POST IN THIS THREAD. This is for the Wiring Thread (http://www.ultimate-guitar.com/forum/showthread.php?p=17568086).


A guitar signal is not...
Forum: Gear Building & Customizing 01-04-2015, 07:47 PM
Replies: 2
Views: 254
Posted By Invader Jim
I can't really offer any advice others than if...

I can't really offer any advice others than if you're wanting to power an amp of that high a wattage from batteries only, you'll be spending a lot of money to keep that thing fed because it's gonna...
Forum: Gear Building & Customizing 01-04-2015, 08:31 AM
Replies: 6
Views: 378
Posted By Invader Jim
It's no trouble at all. With -9.00v at the board,...

It's no trouble at all. With -9.00v at the board, -8.33v at the first filter cap and -7.34v at the second filter cap, no input signal, the voltages at the transistor pins are as follows:

Q1:
E...
Forum: Gear Building & Customizing 01-03-2015, 02:04 AM
Replies: 6
Views: 378
Posted By Invader Jim
Broken Japanese-made radios are still quite...

Broken Japanese-made radios are still quite common at flea markets and such (they were so good at making things cheap they flooded the market and millions of these things were sold). Pretty much all...
Forum: Gear Building & Customizing 01-01-2015, 11:45 PM
Replies: 6
Views: 378
Posted By Invader Jim
Lightbulb Vintage pocket-radio mini-amp

I had this old transistor coat pocket radio that died on me so I used some of the parts to build a copy of its audio section to use as a bench test amp (the original audio section worked well enough...
Forum: Gear Building & Customizing 12-26-2014, 04:18 AM
Replies: 6
Views: 356
Posted By Invader Jim
Those Korean box switches are built exactly like...

Those Korean box switches are built exactly like the open skeleton switches. This design is fundamentally flawed as it relies totally on the spring action of the leaves to operate properly....
Forum: Gear Building & Customizing 12-25-2014, 12:30 AM
Replies: 3
Views: 147
Posted By Invader Jim
It's not the tone pot. As you said, rolling it...

It's not the tone pot. As you said, rolling it down filters out the noise because it is mostly high-frequency.

If the noise is reduced when you touch the strings, that means the strings are, in...
Forum: Gear Building & Customizing 12-21-2014, 01:26 AM
Replies: 1
Views: 296
Posted By Invader Jim
The greasebucket circuit is a very common and...

The greasebucket circuit is a very common and well-known mod... It doesn't boost bass, or even sound like it boosts bass. All it does is load the pickups approximately normally when the pot is...
Forum: Gear Building & Customizing 12-20-2014, 12:38 AM
Replies: 5
Views: 347
Posted By Invader Jim
Glad to help, man.

Glad to help, man.
Showing results 1 to 30 of 500

 
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