Although I learn a lot from hearing you explain things and your voice is very calming, the background music is atmospheric and really cool, a nice change up
Thanks for making "quick" work on my amp. Sounds great,can't wait. Liked the change in presentation. Liked the music too, although "Yakety Sax" would have been fun for about 5 minutes.
I slowed down YT 50%; I like details. Guessing you resoldered controls with Pb solder and replaced the tone stack with higher quality poly caps. I used 630v WIMA PPF on the boards. Very clean, more like a Super Reverb now. Cool mods Lyle!!👍🏼
No, I hate the generic RF stuff YT allows me. This video's bg music was the actual playing at the end randomly crossfading against itself, with some sections reversed, fed through a multi-octave delay/reverb effect. Quick & dirty timey-wimey.
Great synopsis of the mods you do to these mate. And the background music was fine. Off topic slightly I know but what brand solder sucker do you use? I cant seem to get one that lasts more than a week or two!👍
Lyle, here's a totally unrelated question: I'm working on a weird little push-pull EL84 amp with a 6CA4/EZ81 rectifier that has a very poor grounding and lead dress scheme. The 6 volt winding that powers the preamp and power amp sections also powers the recto tube, and just one side or leg of the heater string is chassis grounded, because the winding doesn't have a centertap. Is it okay to use a pair of resistors as an artificial centertap *when the rectifier shares the same heater circuit as the other tubes*, and can the entire heater-circuit be biased-up (taking the cathode voltage off of the EL84's) instead of grounding the artificial centertap? Interestingly, I have been looking at some old schematics for low-power EL84 amps, Vox AC10 and the like, and freguently they don't bother to show a ground reference for the filament wiring ...... but there isn't any scenario I'm aware of where you can actually go without one, otherwise you get lots of buzz and hum. Years ago I worked on a vintage 4×10 Bassman and I turned it on one morning just to give it a final check before shipping it out, and right at that point the center tap for the filament winding just let go internally, and the amp buzzed horribly until I determined what had happened and added an artificial center-tap. (That was a weird "transitional" amp, by the way; the circuit was only a couple parts different from the short lived Bassman that supposedly used a type 83 Mercury vapor rectifier, except that it had a factory-installed octal socket and a 5U4. I drew up a schematic for it at the time, it's around here somewhere....🤔)
You absolutely can, and should. The only similar amps I've run into where you can't reference to the cathode voltage instead of ground are the Thomas Organ Cambridge & Pacemaker, due to how they do the indicator lights.
I don’t know. I buy that in bulk from a wire surplus outfit, Apex Jr. I just say “200 feet of the PTFE 22AWG with the braided shield.” It’s RGsomethingorother.
@psionicaudio Man, how i wish I knew how to do this myself. Just bought a Fender 68 custom twin reverb that I love, but the hiss and hum is such a let down. Plus I don't know a tech that would do this....would it be expensive to have someone do this? I would be happy with just removing the reverb/vibrato from both channels and increasing the negative feedback to solve the hiss and hum
That alone might just do it. This guy has a lot of videos that show how to start with the most non-evasive and easiest possible solutions right up to something similar to what you see here. I'm sold on this guys (Lyle?) expertise and common sense approach. Good luck getting you '68 to quiet down.
How much do you charge for that complete overhaul and is it worth such a big expense for the average gigging guitarist ??? Totally overkill for the whole somewhat discutable improvement...
I've shown details on all these things in other Deluxe Reverb RI videos. This one was to show the complete start to finish. At 10X speed because it would have been a three hour video otherwise. The only thing I didn't show was setting the bias because the way I do it is too dangerous to put on YT and someone kill themselves trying to copy what they see.
