Tube Amp Schematics, Tube Amp Information, Tube Amp Projects. What is a Hoffman board Hoffman boards are classic amp circuits that have been re designed using my own turret lug layouts. I didnt invent the circuits, I just came up with a slick way to organize the circuits on super neat turret lug boards. Hoffman Turret boards are 18th inch thick glass epoxy material. The boards are drilled on my CNC machine with 33. Tall turret lugs that I sell on this page. Use the Hoffman layout diagrams, parts listings and assembly instructions found on this page to assemble these boards. You can find Public parts list for the Hoffman Turret Boards on this page. Want to make a Hoffman board from scratch Check out these pages. Hoffman Board manufacturing instructions Page 0. Hoffman Board manufacturing instructions Page 1. Hoffman Board manufacturing instructions Page 2. Hoffman Board manufacturing instructions Page 3. Hoffman Board manufacturing instructions Page 4. Hoffman Board manufacturing instructions Page 5. Hoffman Board manufacturing instructions Page 6. Here is a letter from the Technical Service department of CBS Hytron tube company, dated June 1954, that discusses a common problem with tube testers. Back to Home Page Tube Data Page Tube Tube Amp Links Page Dynaco Upgrades Dusty Files Part 1 Part 2Other Triode PagesSchematic IndexStudio Schematics. Are you looking for How to Service Your Own Tube Amp A Complete Guide for the Curious Musician is one of the best pdf prepared is a good approach that might time. Old Hoffman. Board kit info page. Updated 0. 20. Hoffman board installation Instructions Choosing a chassis for a Hoffman board. The Tube Amp Book Pdf' title='The Tube Amp Book Pdf' />Scratch building an amp. Sound clips of some of the amps below. Note The Hoffman layout diagrams below are my own designs. Look at these pages for layout diagram hookup info. PDF version of hookup notes and details Old version Common Hookup info for all Board layout diagrams. Note If there is an item on one of my layout diagrams this is confusing you,its probably because you did not look at the common hookup pages above. This board on the forum has questions and answers about the Hoffman Turret boards. Basics of Tube Amps for First Timers Why use a tube amp Are Tube Amps louder than solid state amps of the same power What is Standby for How should I turn it on. A monthly webzine devoted to vacuum tube circuit design and understanding. ACKNOWLEDGMENTS A book on a scale such as this isnt possible without the work of many individuals. During the course of preparing Op Amp Applications, many key. I now offer the Hoffman pre drilled boards with turret lugs installed. Go to my parts catalog to see these boards and for more info. Hoffman Turret boards page. The really really old layout diagrams below are labeled Layout diagram 1. The really old new layouts are labeled Layout diagram 2. The brand new diagrams below are PDF diagrams and they are really nice. Check out my Kits Parts List page. Some of the Hoffman Boards below have Parts list. You can add all the parts to your shopping cart with one button click or just use it as a BOMKits and parts list for the Turret Boards on this page are here. Updated 0. 71. 32. Hoffman 5. E1 5. F1 Tweed Champ PDF layout diagram and Schematic. Hoffman 5. E1 5. F1 Tweed champ PDF BOMHookup notes for Hoffman Boards Hoffman Board Install Instructions. Hoffman Turret Boards are located on this page. GA_FrontCover.jpg' alt='The Tube Amp Book Pdf Download' title='The Tube Amp Book Pdf Download' />Bjorn, I have a Fender Frontman 212 50W amp. Its solid state, but its not bad for under 200. I was wondering that since the mids are scooped, like most Fender. Ive tried to list links where there is 1 a picture, and 2 a schematic. Some of the pages are in other languages, particularly German. Where I dont want to slog. Tube sound or valve sound is the characteristic sound associated with a vacuum tube amplifier valve amplifier in British English, a vacuum tubebased audio. Gear-Haul-CROP.jpg' alt='The Tube Amp Book Pdf' title='The Tube Amp Book Pdf' />Kits and parts list for this build are here. Go here to ask questions about this board. F1 board build images and info. Hoffman 5. F2. A Princeton PDF layout diagram and Schematic. Hoffman 5. F2. A Princeton PDF BOMHookup notes for Hoffman Boards Hoffman Board Install Instructions. Hoffman Turret Boards are located on this page. Kits and parts list for this build are here. Go here to ask questions about this board. Note that the 5. F1 Champ and 5. F2. A Princeton boards are the same board. There are a few parts differences, but the board layout is the same. The 5. F2. A Princeton has a tone pot and the 5. F1 Champ does not. Power_amplifier_tube_pdf.jpg' alt='The Tube Amp Book Pdf' title='The Tube Amp Book Pdf' />Hoffman 5. E3 Tweed Deluxe PDF layout diagram and Schematic. Hoffman 5. E3 Tweed Deluxe PDF BOMHookup notes for Hoffman Boards Hoffman Board Install Instructions. Hoffman Turret Boards are located on this page. Kits and parts list for this build are here. Go here to ask questions about this board. Older Diagrams. Hoffman 5. E3 Tweed Deluxe layout diagram 1. Hoffman 5. E3 Tweed Deluxe layout diagram 2. Hoffman 5. E3 Tweed Deluxe parts listing. Hoffman 5. F6. A Tweed Bassman PDF layout diagram and Schematic. Hoffman 5. F6. A Tweed Bassman PDF BOMHookup notes for Hoffman Boards Hoffman Board Install Instructions. Hoffman Turret Boards are located on this page. Kits and parts list for this build are here. Go here to ask questions about this board. Older Diagrams. Hoffman 5. F6. A Tweed Bassman layout diagram 1. Hoffman 5. F6. A Tweed Bassman layout diagram 2. Hoffman 5. F6. A Tweed Bassman parts listing. Bassman reissue filter cap hookup document. Hoffman Plexi 6. V6. Hoffman Plexi 6. V6 PDF layout diagram and Schematic. Hoffman Plexi 6. V6 PDF BOMHookup notes for Hoffman Boards Hoffman Board Install Instructions. Hoffman Turret Boards are located on this page. Kits and parts list for this build are here. Go here to ask questions about this board. The Plexi 6. V6 build page is here. Sound Clip 1 Lead Humbucker Rhythm single coils. Sound Clip 2 Lead Humbucker Picked Chords are single coils. Sound Clip 3 A mix of Single coil and humbucker. Sound Clip 4 A mix of Single coil and humbucker. Hoffman Plexi. 50 PDF layout diagram and Schematic With Hoffman Hot Switch mod info Hoffman Plexi. Old Plex Media Server S. Hot switch mod PDF BOMHookup notes for Hoffman Boards Hoffman Board Install Instructions. Hoffman Turret Boards are located on this page. Sound Clip 1 ZZ Top I got the six. Sound Clip 2 Cause weve ended as lovers. Sound Clip 2 Becks Bolero. Older Diagrams. Hoffman Plexi. Hoffman Plexi. 50 layout diagram 2. Hoffman Plexi 5. 0 parts listing. Marshall 5. 0 watt power supply diagram. Hoffman Plexi. 10. Hoffman Plexi. 10. The 1. 00 watt has a unique power supply. Marshall 1. 00 watt power supply diagram. Hoffman AB7. 63 circuit information page. Hoffman AB7. 63 One Channel PDF layout diagram and Schematic. Hoffman AB7. 63 One Channel PDF BOMHookup notes for Hoffman Boards Hoffman Board Install Instructions. Hoffman Turret Boards are located on this page. Kits and parts list for this build are here. Go. here to ask questions about this board. Older Diagrams. Hoffman AB7. One Channel Layout diagram 1. Hoffman AB7. 63 One Channel Layout diagram 2. Hoffman AB7. 63 One and Two Channel Parts listing. You can see my AB7. You can make any of the Reverb amps in the list below using the AB7. Basically, the only difference between the different models are the transformers, speakers and the power tubes. Deluxe Reverb, Vibrolux Reverb, Bandmaster Reverb, Pro reverb, Super Reverb, Twin Reverb. This chart shows the transformer numbers for many fenders. You can also convert older numbers to more recent numbers. Fender Transformer Conversion Charts. Hoffman AB7. 63 circuit information page. Hoffman AB7. 63 Two Channel PDF layout diagram and Schematic. Hoffman AB7. 63 Two Channel PDF BOMHookup notes for Hoffman Boards Hoffman Board Install Instructions. Hoffman Turret Boards are located on this page. Kits and parts list for this build are here. Go. here to ask questions about this board. Older Diagrams. Hoffman AB7. Two Channel Layout diagram 1. Hoffman AB7. 63 Two Channel Layout diagram 2. Hoffman AB7. 63 One and Two Channel Parts listing. You can see my AB7. Image showing how to create one channel from two. Sluckeys AB7. 63 Tremolo Mods. Hoffman Princeton Reverb PDF layout diagram and Schematic. Hoffman Princeton Reverb PDF BOMHoffman Princeton Reverb No Tremolo PDF layout diagram and Schematic. Hoffman Princeton Reverb No Tremolo BOMHookup notes for Hoffman Boards Hoffman Board Install Instructions. Hoffman Turret Boards are located on this page. Kits and parts list for this build are here. Go here to ask questions about this board. My Hoffman Princeton Reverb Build. Heres some You. Tube video links of my Princeton Reverb build. Princeton Reverb Video 1. Princeton Reverb Video 2.