Gregory Hodowanec: Magnetic Resonance Amplifier (10 'Cosmology Notes')
from the above link:
I. Speculations on the Magnetic Resonance Amplifier (MRA)
The operation of this circuit recently was described by McClain and Wootan on the Keelynet BBS and in the January 1995 issue of New Energy News. Basically, the circuit consists of a low-level sine wave generator operating in the order of 20 KHz to 40 KHz driving a specially wound 1:1 ratio transformer using a barium ferrite magnet as a core. The input and output coils had about 150 turns of magnet wire. The driving source was coupled to the transformer through a large barium titanate (?) piezo element making this in fact a series resonant circuit. The output coil was coupled to a bridge rectifier to develop a DC output power across an external resistive load. You are referred to the original releases for more data on this circuit. The important factor here is that in the original test the apparent real input power may have been only about 0.7 watts, but the DC output power developed in the load was about 2.75 watts! If these measurements were realm then there was about a 4 times power gain developed here! Where did this extra power come from?
II. Crude Test of an MRA-Type Circuit
While I did not have the actual circuit elements as used by McClain and Wootan, I felt that this circuit was but a specialized application of a typical series resonant circuit consisting of a capacitance and an inductance having some unavoidable series resistance. I had available an old tube-style signal generator which ranged from 20 Hz to about 200 KHz which could develop only about 4 mW of real power across its 5 KOhms internal output load (at 100 KHz). The unloaded voltage output was about 4.5 volts (AC rms) and they short-circuit rms current was about 0.9 ma. I had plenty of capacitors (including some 'piezo' type ceramics) to test in this circuit. For the transformer, I had some small potted transformers in which the coils were wound on a ferrite core (unmagnetized) having a 1/4" diameter and a length of 3/4". The primary winding appeared to have in the order of 500 turns of about #30 magnet wire, while the secondary may have had 1/5 of this number of turns. The original purpose for these units was unknown, but the units were marked as 5.0 mH and a 5:1 ratio. Since the possible output was expected to be low-level, the load in the output was made an LED device rated at 10 ma at 1.85 volts DC
The operation of this circuit recently was described by McClain and Wootan on the Keelynet BBS and in the January 1995 issue of New Energy News. Basically, the circuit consists of a low-level sine wave generator operating in the order of 20 KHz to 40 KHz driving a specially wound 1:1 ratio transformer using a barium ferrite magnet as a core. The input and output coils had about 150 turns of magnet wire. The driving source was coupled to the transformer through a large barium titanate (?) piezo element making this in fact a series resonant circuit. The output coil was coupled to a bridge rectifier to develop a DC output power across an external resistive load. You are referred to the original releases for more data on this circuit. The important factor here is that in the original test the apparent real input power may have been only about 0.7 watts, but the DC output power developed in the load was about 2.75 watts! If these measurements were realm then there was about a 4 times power gain developed here! Where did this extra power come from?
II. Crude Test of an MRA-Type Circuit
While I did not have the actual circuit elements as used by McClain and Wootan, I felt that this circuit was but a specialized application of a typical series resonant circuit consisting of a capacitance and an inductance having some unavoidable series resistance. I had available an old tube-style signal generator which ranged from 20 Hz to about 200 KHz which could develop only about 4 mW of real power across its 5 KOhms internal output load (at 100 KHz). The unloaded voltage output was about 4.5 volts (AC rms) and they short-circuit rms current was about 0.9 ma. I had plenty of capacitors (including some 'piezo' type ceramics) to test in this circuit. For the transformer, I had some small potted transformers in which the coils were wound on a ferrite core (unmagnetized) having a 1/4" diameter and a length of 3/4". The primary winding appeared to have in the order of 500 turns of about #30 magnet wire, while the secondary may have had 1/5 of this number of turns. The original purpose for these units was unknown, but the units were marked as 5.0 mH and a 5:1 ratio. Since the possible output was expected to be low-level, the load in the output was made an LED device rated at 10 ma at 1.85 volts DC
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To professor!
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