OTL Asylum: RE: Philips 9014 and 9015 by ChasLieb OTL, Output Transformerless Amplifier User Group.

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Posted by ChasLieb (A ) on November 3, 2020 at 16:29:37

In Reply to: RE: Philips 9014 and 9015 posted by Ralph on November 3, 2020 at 11:14:40:

Thanks for checking in Ralph. The later 9015 does have an output transformer so in addition to the 800 ohm output it can output at 8ohms. I don't know anyone who has heard these amps and the schematics, shown here https://philipsag9015home.files.wordpress.com/2019/07/ag9015_sch.png are interesting and suggest room for part upgrades. Given the low output power of about 10w they are only of use with high efficiency speakers. If I can get one cheap I may try it out with a set of Gallo Strada IIs and a subwoofer. Maybe even worthwhile to get a set of vintage philips drivers to play with. Hoping someone who has seen these in person can chime in.

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