El84 Push Pull Amplifier Schematic. El84 datasheet specifies. For musician s use and to promote sag the two output diodes may be replaced with a ez80 or ez81 rectifier valve although you should also provide it with its own extra vt1036 heater transformer to avoid a large voltage difference between the cathode and heater i e.
More information about tube power suppies is available in the power supply design for vacuum tube amplifiers article. For musician s use and to promote sag the two output diodes may be replaced with a ez80 or ez81 rectifier valve although you should also provide it with its own extra vt1036 heater transformer to avoid a large voltage difference between the cathode and heater i e. If we ignore compensation networks de coupling capacitors and so on we see that the circuit is essentially the same as that of figure 1.
This vacuum tube amplifier came after the il primo and il primo bis.
This amplifier was originally featured on the october 2003 issue of the high fidelity audio. For musician s use and to promote sag the two output diodes may be replaced with a ez80 or ez81 rectifier valve although you should also provide it with its own extra vt1036 heater transformer to avoid a large voltage difference between the cathode and heater i e. El84 push pull valve power amplifier circuits. I m trying to build a single channel power amp using two el84 in a push pull setup with a switch to select between 5w triode and 17w pentode.
