MC34063 Step Up Converter

For the next project, a 24V power supply is required. But no transformer is needed. The big, heavy, separate regulator (LM7824) should be added etc etc …  And the consumption is just a few mAs. Well, then be DC – DC converter! The point was that 12v should be converted…
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PT2399 : False and genuine

Okay, this is a great product of the Princeton Company. This is PT2399 echo IC. It can make good guitar effects like: delay, reverb .. But if it’s original .. Well, we got a fake IC. No PTC manufacturer, unknown “DTC”. Compared to the original, other exterior. And noisy, such…
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Tube amplifier electronics repair

Some pictures: electronics repair. The product name: Dynacord Eminent II. This is beginning to be manufactured in the mid sixties. Initially, all tube design, and later the transistor preamp and tone section. Meanwhile, little change in design as well. This four different input and tone control. A small band certainly met…
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Bassline – Bass Guitar Tube Preamplifier

So far, we do not really dealt with bass guitar  effects, amplifiers. Here, in this time of change!One of my favorite band The Beatles, inspired a new tube bass preamp creation.The plates can hear great tunes and sounds of the XXI century it is significant. This’ 60s-edgetone you want to…
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Aural Exciter Makes Your Sounding Real

Aural Exciter since the 70’s. Do you know that feeling when you’re playing on guitar however you’re missing something? You’ve got many effect like distortion, overdrive, delay or something programed effect. You’re sure something is missing from your music and it’s not other than fatty and lively sounding. Fortunately there…
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Red Lights – RC4558 op amp based distrortion.

Well, again, we present a very simple circuit. As is also shown in the drawing, few parts. The circuit is based on a dual operational amplifier RC4558. But this is only half used, so there is only one using the op amp. Alternatively, you create an active tone control in…
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