The Fender Bassmanis a legendary guitar amp known to both guitar and bass players. It wasintroduced in 1951, primarilytargeted for bass guitar players andpromoted asa bass ampfor the Fender Precision Bass guitar, the first mass-produced electric bass guitar ever. During the different eras the Bassmanampcame in many different shapes and configuratio
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ns. Few othermodelsexperiencedso many changesin terms of looks and tone. The next timeyou get intoa Fender Bassman discussion you shouldnarrow down exactwhich era, model and circuityou`re discussing. Otherwise it will justbe a fool`s discussion. The tube charts are not very useful for determining the circuit model. A lof of blackface Bassmanamps withAA864 tube charts are actually AA165 ²s, anda lot ofAA165 charts areglued into AB165 amps. At the Fender factory they used old tube charts when new models came, probably because the tube layout was the same. Determining production date by serial number and transformer codes is better, and you should also inspect the circuit to be completly sure. Unfortunately the Bassman was one of the first amps that CBS laid their hands on after buyingthe companyfrom Leo Fender. A couple of thingsin the circuitry were immediately changed in 1965 when the AA165 and AB165 replaced the AA864. Amp collectors and idealists often prefer the pre-CBS models but if we study the AB165 circuit it does have something very interesting for guitar players who enjoy cranked Fender blackface tones. We`ll come back to this later in the blackface chapter below where we`lldemystify some of the hypeswith the popular AA864. The AA165 is very rare and its circuit and tone is quite similar to the AA864. We will further focus mostly on the AB165 vs AA864. Some thingshave not changed since the beginning; The Bassman...
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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