okay, in the last installment, i outlined 5 areas of improvement to the EH 12AY7 mic pre, to explore and an initial design for how to deal with some of them. these were, gain, isolation, a lower outpu... Read More

i think this will become a running post. ok, i left off “part 1” with a brief explanation of how and why an “affordable” (let’s just say it: cheap) commercial tube mic pr... Read More

to answer a question i was asked from the phillipines, i am posting this… it is a direct coupled feedback scheme (important for me) and can be DC coupled further up the line using techniques out... Read More

this is not part 2 of the mic pre lab. as a response to a question on the joenet, i am posting a slightly simplified practical version of the silbatone linestage. if you know anything about tube lore,... Read More

as an introduction to what goes into a mic pre, i thought i would start with something very accessible. no vintage collectibles. later on, i will go into some fancy stuff. some years back, i designed ... Read More

starting out is rarely simple or pain free. for me, it’s a messy unpleasant series of clumsy efforts and hesitation. one step forward, many steps backwards. throw it in the crapper and start ove... Read More

this will be a quick post about something i’ve been thinking about… been working on phono stuff for a while and i do love the sound of nickel LCR RIAA. i have to say that slagle has shown ... Read More

hackers, artists, engineers, crafty people… we usually think we’re pretty smart. sometimes, our work can lend some weight to that idea. i like to imagine i am. but there is a part of me th... Read More

sometimes it happens that a decision has to be made about very small improvements. and it may not be clear, in terms of some absolute value, what to do next. the significance of this can easily be blo... Read More

i’m going to add a disclaimer at the beginning here: please read on with a grain of salt. as always, these are my opinions here, and i do it mainly for me, not you. to help me make sense of thin... Read More