H&G Amplifiers

H&G Amplification is an manufactory that designs and manufactures music amplifiers, speaker cabinets and boutique guitar effect pedals.

Low voltage tube preamplifier



It is a low voltage tube preamplifier, specifically guitar preamp. Uses 12AX7 or ECC83 tube. No complicated circuit. The circuit is similar to the famous old guitar amplifiers bright channel. Low voltage operation, does not require a separate anode and output transformer.


Low voltage tube preamplifier circuit.

Low voltage tube preamp.


Low voltage tube preamplifier test

His voice does not want to write much, rather, here is a test video:

Nice clean and natural voice, with little deep voice and great dynamics, but I missthe power. The power supply to the DC to DC converter has been previouslydescribed in the circuit. BUT you must change because they are noisy, highvolume noticeable.