darrin_h2000
Banned
I was wondering if they can be found as componants in stuff like old tape recorders or old stereo equipment...and I f I found them how do I go about modding my preamp to accomedate one?
darrin_h2000
Banned
Nobody knows...you have to figure theres 10:1 and 1:1 transformers in old stuff with mic inputs.
crazydoc
Master Baiter
I'm no transformer expert, but here's my take:
Lots of stuff have transformers in them - identifying the parameters will usually be impossible. The parts numbers are house parts and impossible to trace. Even if you know the turns ratio, you don't know the wire gauge, impedance, current rating, or core type. Many have multiple taps.
Power supply transformers aren't so bad - hook up the primary to line voltage and measure the secondary AC voltages. You still have to guess about current and power capabilities.
Even if you're able to find the data, how're you going to know how to use it in a circuit, unless it just happens to be one that is called for (a likelihood comparable to winning the Power Ball Lottery.) I suppose if you get it out of a high end audio preamp or other audio circuit it might be useful, but except for power supplies, I doubt you'll find anything in consumer audio stuff.
Lots of stuff have transformers in them - identifying the parameters will usually be impossible. The parts numbers are house parts and impossible to trace. Even if you know the turns ratio, you don't know the wire gauge, impedance, current rating, or core type. Many have multiple taps.
Power supply transformers aren't so bad - hook up the primary to line voltage and measure the secondary AC voltages. You still have to guess about current and power capabilities.
Even if you're able to find the data, how're you going to know how to use it in a circuit, unless it just happens to be one that is called for (a likelihood comparable to winning the Power Ball Lottery.) I suppose if you get it out of a high end audio preamp or other audio circuit it might be useful, but except for power supplies, I doubt you'll find anything in consumer audio stuff.
darrin_h2000
Banned
Specifally Jensen 10:1 and 1:1... they look like little cans and have the parameters as part of the number markings.
Teacher
New member
eeldip
New member
ebay aint so bad for transformers at all. i just got a cool 600:600 hammond off of ebay for like $7. building an isolation box with it. prolly have a nice color too!
some of the sellers will give you the pin outs or the specs or whatever you need... just look around. good deals abound, altec, beyer, jensen, ludenthal, etc...
some of the sellers will give you the pin outs or the specs or whatever you need... just look around. good deals abound, altec, beyer, jensen, ludenthal, etc...