OPT – Bartola® Valves

This is a long overdue post which I never had the time to write about. I was hoping to get my measurement gear down to where my system is to take a final FR sweep analysis of my 4P1L PSE amplifier, but never got around to do it. However, after the recent posts in DIY Audio, it was time I shared the measurements made and my listening impressions of the NP Acoustic Transformers.

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Disclaimer

Bartola ® and Bartola Valves Logo are registered trade marks of Bartola Ltd. in the United Kingdom.

Bartola Ltd. is a limited company registered in England and Wales. Registered number: 10819140. Registered office: London, United Kingdom.

Copyright notice

All schematics and designs are copyright Alejandro Moglia and Bartola Ltd. UK unless stated otherwise. All rights reserved. You are welcome to build the circuits presented here for your own personal entertainment. You may NOT build from information on this page for commercial profit without a royalty agreement with the author in place.

Many of the devices described in this site use or generate potentially lethal electric currents. If you use the information in this site to kill yourself, your friends, family members, acquaintances, total strangers, pets, electronic devices or burn down your house, it is not my problem!

Tag: OPT

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NP Acoustic Transformers