so i am new here and thought i'd tell my story, so here goes.......
i got into electronics back in middle school, around '85, and have pretty much been into it since.
i joined the navy and spent 7 years as a data systems tech, where most of my technical experience came from working mainly on digital equipment, with some occasional analog problems to work on. after the navy, i worked in a shop that dealt with military electronics and spent a year or so working on more analog stuff than digital. from then, it's been more rf related, but not so much component level stuff.
what i am finding now, is that i want to get back into the analog side of things. i have been lately taking in vintage stereo equipment, i.e. marantz, pioneer, etc, from the '70's and bringing it back to working condition. in addition, i have picked up mid '80 to '90's car audio amplifiers and working on those.
where it gets to be somewhat sad for me, is that i don't seem to remember half of what i used to think i know......(you read that correctly). *eta>>>>it seems that i can't remember a lot of the math and formulas.
i can still read schematics and in most cases, with service manuals, i can still pretty much jump in and get the fault repaired. where the problem seems to lie, is for example:
i have an audio amp that the preamp board is toasted. being a hybrid ceramic board containing all surface mount, it is not feasible to repair as traces were destroyed also. i want to simply bypass the preamp board and specifically use this amp with inputs coming directly from a preamp/equalizer with outputs at 0 to 2.5 volts.
in this case, i find myself questioning how much i really know and how much i have seem to forgotten, and can this even be done, and i realize i still need the preamp section of the amplifier for the 0 to +/- vcc swing to appropriately drive the output stage.....
anyways,
so it's back to the basics of op-amps i go and i do the math, (which i have always sucked at) and pretty much am satisfied that i can build a new preamp board with good results.
moving forward......
i fortunately have the net, a decent rack of test equipment to include:
tek type 422 scope
tek 2246a scope
fluke 8600a meter
fluke 8012a meter
a couple handheld dmm's
some analog meters
and various other items......
so that is pretty much where i stand right now, an old newb to electronics.....
if you made it this far without falling asleep, i commend you!
thanks for reading and hope to be able to contribute to this site,
bill
i got into electronics back in middle school, around '85, and have pretty much been into it since.
i joined the navy and spent 7 years as a data systems tech, where most of my technical experience came from working mainly on digital equipment, with some occasional analog problems to work on. after the navy, i worked in a shop that dealt with military electronics and spent a year or so working on more analog stuff than digital. from then, it's been more rf related, but not so much component level stuff.
what i am finding now, is that i want to get back into the analog side of things. i have been lately taking in vintage stereo equipment, i.e. marantz, pioneer, etc, from the '70's and bringing it back to working condition. in addition, i have picked up mid '80 to '90's car audio amplifiers and working on those.
where it gets to be somewhat sad for me, is that i don't seem to remember half of what i used to think i know......(you read that correctly). *eta>>>>it seems that i can't remember a lot of the math and formulas.
i can still read schematics and in most cases, with service manuals, i can still pretty much jump in and get the fault repaired. where the problem seems to lie, is for example:
i have an audio amp that the preamp board is toasted. being a hybrid ceramic board containing all surface mount, it is not feasible to repair as traces were destroyed also. i want to simply bypass the preamp board and specifically use this amp with inputs coming directly from a preamp/equalizer with outputs at 0 to 2.5 volts.
in this case, i find myself questioning how much i really know and how much i have seem to forgotten, and can this even be done, and i realize i still need the preamp section of the amplifier for the 0 to +/- vcc swing to appropriately drive the output stage.....
anyways,
so it's back to the basics of op-amps i go and i do the math, (which i have always sucked at) and pretty much am satisfied that i can build a new preamp board with good results.
moving forward......
i fortunately have the net, a decent rack of test equipment to include:
tek type 422 scope
tek 2246a scope
fluke 8600a meter
fluke 8012a meter
a couple handheld dmm's
some analog meters
and various other items......
so that is pretty much where i stand right now, an old newb to electronics.....
if you made it this far without falling asleep, i commend you!
thanks for reading and hope to be able to contribute to this site,
bill
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