![]() Is your reverb tone too bright? This easy mod can tune the tone. OscillationSimple mod to clean up the reverb. Resistors Bright Cap Mod Get a little more brightness from either Pick Highs Take the edge off your tone with a single cap. To change the action of the reverb control? This is how. Preamp gain with this simple and very useful mod. Reverb's Loose Low EndMake it sound more like a Twin Reverb. Two identical tone stacks? Mod one of them. Presence Control Into Variable NFB Presence Control or Variable Use this late-in-the-circuit tone control to tame ice pick and tweak your tone. Pentode / Triode Switch Cut power tube output for lower volume In External Box External box goes between your amp and speaker to dump Iĭump 3/4 of the amp output for lower volumeġ0% Power Switch Dump 90% of the amp output for true bedroom level outputġ0% Power Jack Use your Aux jack as a 10% output jack Master volume AND late-in-the-circuit tone control. Simple Trainwreck Type-3 PPIMV master volume. Something constructive with your unused Normal channel.Īdd preamp gain with a simple resistor swapĪdd preamp clean headroom to the low voltage Deluxe, Deluxe Reverb, Vibrolux and ModApply reverb and tremolo to both channels the way Fender didĬhannels through the reverb and tremolo effects. Note the Preamp Plate Voltage difference between theĭeluxe Reverb and the higher powered amps.Ĭhannel Reverb Mod The preferred way to apply reverb and tremolo to both channels and There's alsoĮnough room for the addition of a nice little 6" practice speaker. Reverb tank and power transformer to keep hum pickup to a minimum. If you are considering building an AB763 with reverb in a headĬab I recommend you go no smaller on the head cab dimensions than the silverįace Dual Showman Reverb head cab. Is also a great place to mod away with to make that channel interesting and Mods that keep the amp's original tone in place. The AB763 circuit is considered by most to be For information about theĪB763 model differences see this. Vibroverb, Tremolux and no-reverb Deluxe. The "763" in the model name comes from the circuit change dateĭeluxe Reverb, Twin Reverb, Super Reverb, Concert, Band-Master, Showman, Pro, Vibrolux, 'AB763' was Fender's internal model designation for the 1963Ĭircuit. Use just one hand when working on a powered amp. Lethal shock can run between your arms through your heart. Never touch theĪmplifier chassis with one hand while probing with the other hand because a High voltage then have an amp technician service your amp. If you have not been trained to work with Tube amplifier chassis contains lethal high voltage even when unplugged-sometimes I could meet you up to 50 miles radius, but we'd have to work out how you could see it running.Includes modifications for the 65 Deluxe Reverb Reissue and I would prefer not to ship it, so collection please in the first instance from Morecambe Lancashire. It works great, low noise floor, no undue noises or crackles and sounds strong and loud, just as it should do. ![]() The preamp valves are mixed, JJ, GT, Chinese and an old Servicemaster for the Phase inverter. It's on 110v, but will be supplied with a good quality step down transformer. The power valves are Groove Tubes, closely matched and biased at 32ma/33ma. The mains lead has been replaced with a grounded three prong, correctly wired. It has two changed pots and a few other caps, but they are good quality parts (Alpha pots, Jupiter caps). Fully serviced including all electrolytic capacitors replaced with F&T's and Spragues. Very good condition, all original tolex, grill cloth, handle, corners, feet etc, and all the original transformers.
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