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In the Forum: Melquiades Amplifier
In the Thread: The one-stage Melquiades.
Post Subject: The dead cold HF single-stage MilqPosted by Romy the Cat on: 9/30/2007
Since I went single-stage Milq with output transformer on the Water Drop’s side I am witnessing an interesting phenomenon. When the amp is cold and juts tuned on then during the first 3-5 minutes (in addtion to the 2.5 minutes of start up procedures) my tweeter radiate ugly HF noise. It is sort of microphonic noise, with that glass echoes and this noise COMPLETELY GOES AWAY after the tube warms up. The effect is not depending from the tube section (I have tried a dozens of 6E6P). It does not bother me but I find it interesting as the right channel amplifiers (the one that does not use single-stage amp and has 2 transformers between the 6C33C and Ribbon) does not have this effect.

Rgs, Romy the Cat

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