Fast996 Posted May 7, 2021 Share Posted May 7, 2021 I was talking to a tech about the AK3 crossover and he asked me about the T4A autoformer I was hoping a RKI here could help me with some answers....thanks. " I would need to know the inductance values of the autoformer to get a better idea since it is unclear if the autoformer is part of the filter or a simple attenuator? Quote Link to comment Share on other sites More sharing options...
Bacek Posted May 7, 2021 Share Posted May 7, 2021 To get raw idea you can check T2A specs. Shouldn't be far, but this has fixed 4dB attenuation. Quote Link to comment Share on other sites More sharing options...
mboxler Posted May 7, 2021 Share Posted May 7, 2021 8 hours ago, Fast996 said: I was talking to a tech about the AK3 crossover and he asked me about the T4A autoformer I was hoping a RKI here could help me with some answers....thanks. " I would need to know the inductance values of the autoformer to get a better idea since it is unclear if the autoformer is part of the filter or a simple attenuator? If the inductance of the T4A, taps 0 - 5, is the same as the T2A, taps 0 - 5, then the inductance of the T4A, taps 0 - 3, should be 18.1mH (45.6mH / 2.512). Sorry, I don't have a T4A to verify this. Mike Quote Link to comment Share on other sites More sharing options...
Wirrunna Posted May 7, 2021 Share Posted May 7, 2021 Here is the T2A as mentioned earlier. I have always understood that the autoformer is just a simple attenuator in the AK3. Quote Link to comment Share on other sites More sharing options...
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