Re: Tannoy Reveal 6D
Khron asked 'Resistance between where the 7915's output should be, and pin 11 (of 14) / pin 8 (correction - pin 4 is ground) (of 8)? Answer - 976 ohm for all them. The 8 pin IC is labelled JR448AC LM833N. Another opamp? Google might know.
Edit - these measurement were taken with the 7915 back in circuit and apparently working.
The current challenge is, what's making the woofer cone extend outwards? This could be because the negative voltage rail is not reaching one of the amplifier chips. I'll try the stunt-double speaker with the HF output.
Khron asked 'Resistance between where the 7915's output should be, and pin 11 (of 14) / pin 8 (correction - pin 4 is ground) (of 8)? Answer - 976 ohm for all them. The 8 pin IC is labelled JR448AC LM833N. Another opamp? Google might know.
Edit - these measurement were taken with the 7915 back in circuit and apparently working.
The current challenge is, what's making the woofer cone extend outwards? This could be because the negative voltage rail is not reaching one of the amplifier chips. I'll try the stunt-double speaker with the HF output.
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