That circuit is similar in concept to the BK Butler/Tubeworks Tube Driver. Since there is only a 9v supply, the tubes operate in `starved plate` mode. Preamp tubes normally operate on 100v-300v. It`s similar to using a Variac on a tube amp. When there is only 9v on the anode the tube operates way outside its linear amplification range and is easy to push into distortion. Guitars
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- `05 Gibson Custom Historic Series `59 Reissue (R9); `12 Fender American Standard Stratocaster; `08 Heritage H-555 Semi-hollowbody; `06 Carvin CT6M California Carved Top; `89 Fender Strat Plus; `10 Agile AL-3000; `12 G&L Tribute ASAT Classic Bluesboy Semi-hollowbody; " Kwik-Keef Konvertible " `09 Squier CV `50s Telecaster; `10 Squier CV Telecaster Custom; `12 Squier Vintage Modified Cabronita Tele + Bigsby; `12 Xaviere XV-890HSS w/ FR Trem; `12 Epiphone Masterbilt DR-500MCE; `71 Yamaha FG-300 Amps & Cabs - Mesa Boogie Express 5:25 10" combo; ultra-modded Fender Blues Junior; Vox AC15 Heritage handwired 1x12 combo; Allen Sweet Spot kit amp ; BYOC Tweed Royal kit amp (switchable 5E3/5F1 hybrid); Trinity 18W kit amp ; Homebuilt 1. 5W Firefly Head ; Epiphone Valve Jr. combo + mods ; Jet City Picovalve 5W head; Drive 2x12 cab w/ Celestion G12M Greenback + G12H30; AB Custom Audio 1x12 cab w/ Celestion Alnico Blue (UK made) what made it interesting to me (other then it doesnt look to hard to build), is i use a solid state xxl peavey amp, and it allows you to put something in the preamp (pedals etc). while the amp is a real good SS amp, it has no real "tube sound", so one day i took my ibanez tube king pedal (has a 12ax7 tube) and plugged it in the preamp and maaaannnn was i suprised at how it sounded, like a totally different amp. So anyway i was wondering if there was a way to make this pedal with 2 or 3 or more tubes in it, as...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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