Babelfish F8

The First Watt F8 is yet another incredible amplifier from Nelson Pass. The official schematics for the F8 have not been published by Nelson, but with his blessings and encouragement, DIYer’s have created their own F8 variations. Only a rare few people have the output devices used in production F8s. So, the ever-creative Zen Mod created his 'Babelfish' version using readily available output devices. For those that are blessed to have the Semisouth output devices, they may be used with this kit (substituting a few part values). What Will You Need To Complete A Working Amplifier? You will need a power supply, chassis, wiring, and a few other parts to complete a working amplifier. Power supply requirements A bipolar power supply of (+/- 24V) is required. The PSUs for all First Watt amplifiers projects sold in the store including the F4, F5, F5m, F6, M2x, Aleph J, Aleph Jzm, and now the Babelfish F8, are identical. The same PSU can be used for all of them. There are three PSUs to choose from: The Simple Linear Bipolar Power Supply is the choice for DIYers that prefer a higher performance power supply, but enjoy the convenience of a full kit. For builders that prefer to choose their own parts, the PCBs are also available. The Universal Power Supply PCBs allow the experienced DIYer to choose every part of their PSU or use what they have in their spare parts bin. Chassis suggestions The 3U Deluxe is an excellent choice. For builders that want more space and/or may want to build a bigger amplifier in the future, the 4U Deluxe or 5U Deluxe are great choices. We also have a back panel parts kit to make life easier. Don’t forget the Keratherm. What If You Have Questions? This project is intended for intermediate to advanced DIYers. It’s a wonderful second amplifier project after an Amp Camp Amp. Patient beginners willing to study should have no trouble following the complete build guide. If there are questions, the community on diyAudio is always willing to help. The Babelfish F8 discussion thread is a perfect place to ask for help. The builder must know how to identify parts from schematics, match those parts to PCB locations based on the silkscreen, and have good soldering skills. There are two 1206 SMD resistors per channel. Most importantly, all builders are responsible for their own safety and must understand essential safety practices and precautions when dealing with mains powered electronics.