Quick Reference: Vibrolux Reverb vs Deluxe Reverb at a Glance Deluxe Reverb circuit: AB763 (blackface), AA763 (transitional 1963) Vibrolux Reverb circuits: AA964 (1964-1965), AB568 (1966-1967) Deluxe Reverb output: ~22 watts RMS, 2x 6V6GT, 1×12″ speaker Vibrolux Reverb output: ~35 watts RMS, 2x 6L6GC, 2×10″ speakers Deluxe Reverb rectifier: GZ34 tube (blackface); 5U4GB tube on later…
Visual reference for super reverb vs deluxe reverb. Quick-Reference Spec Comparison Spec Fender Super Reverb Fender Deluxe Reverb Circuit Number AA763 / AB763 AA763 / AB763 Era Classification Blackface 1963-1967 / Silverface 1968-1981 Blackface 1963-1967 / Silverface 1968-1981 Rated Output Power ~40W RMS ~22W RMS Power Tubes 2x 6L6GC 2x 6V6GT Preamp Tubes 4x 12AX7,…
Quick Reference: Hot Rod Deluxe vs Deluxe Reverb at a Glance Hot Rod Deluxe IV: 40W RMS, 3 channels, 2x 6L6GC, 3x 12AX7 preamp, solid-state rectifier, digital reverb, no tremolo ’65 Deluxe Reverb Reissue: 22W RMS, 2 channels, 2x 6V6GT, 4x 12AX7 + 2x 12AT7 preamp, 5AR4 tube rectifier, spring reverb, tremolo Both: 1×12 open-back…
These two tubes define the tonal divide between American and British small-amp design. The 6V6 is the heartbeat of every classic Fender circuit from the tweed Champ to the blackface Deluxe Reverb. The EL84 powers every Vox AC15 and AC30 ever made, plus the original Marshall 18W combos. They’re not interchangeable. Different sockets, different operating…
Most players treat the EL84 vs 6L6 question as a simple “British vs American” choice. That framing isn’t wrong, but it misses the real story. The difference between these two tubes isn’t just tonal preference. It’s architecture, operating class, voltage rails, output transformer requirements, and bias topology. They aren’t two flavors of the same thing….
Most players assume swapping a 5751 for a 12AX7 cuts your amp’s gain by 30 percent, based on the raw amplification-factor ratio (70 versus 100). That estimate turns out to be close to the mark. In a real loaded circuit, the 5751’s slightly lower plate resistance only partially offsets the drop in amplification factor, so…
This covers the AA1164 circuit in detail, explains what Fender actually changed in the ’68 Custom design, and gives you a concrete framework for matching each amp to your playing style and pedalboard. If you’re deciding between these two production reissues, circuit behavior is the whole story. The ’65 Princeton Reverb Reissue (left) and ’68…
Quick Reference: Pro Reverb vs Deluxe Reverb at a Glance Pro Reverb circuit: AA165 1964–66 / AB668 1966–67 (blackface), AA1069 (silverface) Deluxe Reverb circuit: AB763 (blackface), AA1172 / later AA1270 (silverface) Pro Reverb power output: ~40 watts, 2× 6L6GC, 2×12″ speakers Deluxe Reverb power output: ~22 watts, 2× 6V6GT, 1×12″ speaker Pro Reverb and Deluxe…
The Fender Hot Rod Deluxe and Hot Rod DeVille share an identical three-channel preamp circuit and control layout, but diverge in power amp configuration and speaker complement: the Deluxe runs 40 watts through a single 12-inch speaker, while the DeVille runs 60 watts through two 12-inch speakers (212) or four 10-inch speakers (410), producing greater…
Forty watts or eighty-five. That gap sounds minor on paper. In a rehearsal room at volume, it’s the difference between an amp that starts to bark when pushed and one that refuses to break a sweat. The Super Reverb and Twin Reverb share enough DNA to confuse a buyer at a glance: same grille cloth…
Most players researching a 5E3 Deluxe restoration get told “just swap in a 12AX7 if you can’t find a 12AY7.” That advice is half-right and half-wrong. The swap is physically safe. It won’t hurt your amp. But it fundamentally changes the gain structure of a circuit Leo Fender’s team designed specifically around the 12AY7’s lower…
Twenty-five watts versus forty-two watts of plate dissipation. That single number gap explains most of what separates these two tubes. But the full story runs deeper than headroom math. The EL34 and KT88 were engineered at different factories, for different purposes, in different decades, and when you drop either of them into a push-pull power…