This is one of the original brand-name folders created for the site, and for almost three years it has been empty, just someone`s distant memory - suddenly we have a nice pic and the circuit of the preamp. Thanks Richard. I`ve only a pre amp cct I traced from my unit in photo (forgive the haircut but it was 1985) Power amp was pretty much Fender t
Click here to download the full size of the above Circuit.
win: 100/50 W, 4x6l6GC, presence, slave out, 4, 8, 16ohm, Wicker trim. On the back of mine is a little plate that says Christchurch, NZ indicating that it`s a pre 80`s build as Ross relocated to Melbourne, Australia in the early 80`s. Serial number is 045, so I guess at least 50 of these were made around that time I`ve never seen another one like it, so I`m not sure how many would be out there. I bought this amp from Cash Converters in Parkdale for $300 in June 2008. I bargained them down from their asking price of $500 as I thought the amp was only half functional, with half the controls not functioning correctly. When I came home and inspected it further I realised, with a bit more tweaking, that it`s actually essentially a fully functional amp and has simply been customised so that the controls are not doing what`s indicated on the panel anymore, but have other functions. This conversion has basically involved turning a clean voiced AC-50 clone into a hot-rodded monster with a couple of knobs to control the two gain stages, and addition of a master volume control at the end. So, whilst the original controls would have been; (BRILLIANT) Volume, Treble, Bass, & (NORMAL) Volume, Treble, Bass, now the knobs function as Gain 1, Gain 2, Bass, Middle, Treble, and Master Volume. Gain 1 and Gain 2 controls basically add the same amount of gain when used individually, but have a cumulative effect when used together, facilitating...
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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