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4P1L Gen3 preamp, 01a Gen2 preamp, Tony’s 30sp preamp and Andy’s 26 preamp

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!

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