http://www.valvewizard.co.uk/fuses.html NettetMost components in the amp are cheap and easily replaceable, but the power transformer is valuable and deserves secondary protection. A fully fused transformer should last longer than you do. Most valve-amp transformers have two windings: high voltage (HT or B+), and heater supply. At the very least, the HT winding should have its own fuse.
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Nettet3. okt. 2016 · The 600V would be produce a rectified voltage of 426V with solid state diodes. For either of the above I would recommend a dropping resistor. A Hammond 269JX, on the other hand is 500V CT which would produce a rectified voltage of 355V with solid state diodes, and that is close to Fender's specification for the 5F1. Nettet23. jan. 2024 · I recently built the following 5F1 amp based on Doug Hoffman's schematic. This replaced my previous iteration of the amp which utilized a PCB from a tube depot kit. One thing I liked about the tube depot version was the 100k negative feedback trim pot in line with a 22K resistor. Hoffman circuit (attached as PDF): marty grimes rapper
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NettetHoffman Stout Chassis v2. $42. Brand New. 14-Day Return Policy. Add to Cart. Mojotone Tweed Bassman 5F6-A Output Transformer 45249. $110. Brand New. ... Mojotone Fender Tweed Champ Style Chassis 5E1/5F1. $82.90. Brand New. 14-Day Return Policy. Add to Cart. Mojotone British 18 Watt Style Chassis. $71.72. Brand New. 14-Day Return Policy. Nettet18. feb. 2024 · Hoffman Blues Junior, Hoffman 5F1 Champ, Hoffman Deluxe Reverb, Hoffman Stout Reverb, 1967 Fender Bassman, 1966 Fender Bassman, 1971 Fender … Nettet5. apr. 2024 · In this video Angie starts the build. Link to the pdf of the layout, schematic, etc from Hoffman Amps : http://el34world.com/Hoffman/files/Hoffman_5F1.pdf-~... hunkydory free paper crafts uk