psarkissian

WXT has the cup on the bottom the WGC doesn't. Use the WXT if you have the amp with the the bear trap or clamp type retainers. WXT are good for amps with the spring retainers, since the base cup helps counter any pressure from the springs. With taller tubes, the spring pressure was enough to crack a tube during transport. 5881 vs 6L6WGC (or WXT),.... 1) Bias won't be the same between them because,... 2) the characteristic curves are slightly different, and so,... 3) you can't get away with the same sort of swapping we used to get away with back in the 1960's and 1970's. This is a different beast. Be aware, it may work now,... but later,... that's another thing. And how hard you run it,... that factors into it as well. 12AX7B is fine, anything else is fancy, and unnecessary overkill, but it will work, it's th s small signal pre-amp stage.

I tested it on a JTV-59 with Flash v2.00 and v2.21, it’s less apparent when using Flash v2.21 (the latest and current). It sounds like the effect is a quirk of filtering processes,… -The pick-ups are inductors with a magnet. Passive Filters- inductor, capacitor and resistor are passive components, and create a “first-order†passive resonant filter circuit. -In Model mode, the filter is built around a function block, and if there is an amp (real or virtual) involved, then it creates an active filter circuit. Since it is an active filter, it is automatically a “second order†filter. -Passive filters are smooth across the frequency response band. Neve uses this in their mixing consoles, it’s a smooth response, and then they send that output to an amplifier, allowing gain changes and still maintaining that smooth response. -Active filters have emphasis and de-emphasis just before the roll-off frequency point. Synthesizers use this by exaggerating the emphasis and de-emphasis to create undulating filter sweeps, by cascading “second order†filters into one another to create extreme filter sweeps. The Chebyshev response curve is the one that is the smoother of the active filters, is stable and easier to control, and keeps ripple and emphasis to a minimum,… which is why some of us like using them in audio circuits. It’s how some Wah-Wah's works,… volume/tone pot is tied into an active circuit making it an active filter, changing the cut-off point or the Q-factor (gain at the resonance point). The more orders of active filter, the more extreme the effect you can get out of it. Sounds like what capdoogie is experiencing is an ultralight version of active filtering in Model mode vs passive pick-ups. Like I said earlier, less apparent with Flash v2.21 program.

Or,.... Log a ticket, get an RMA, and send it here to Line 6. The tech here who does the old Variax guitars has a couple jack assemblies,... he can install one (and check other stuff too while he's in it). I just asked him about it. Modifying a JTV assembly to fit can be done, but it's also a can of worms if you're not an experienced tech or circuit person.

Open a ticket, get an RMA and take it to your nearest authorized Line 6 service person. When you do take it in, take the guitar, cables and accessories and the HD500, so they can go through it all an "fine-tooth-comb-it" along the entire signal chain. They will have access to service data and info. BTW,... I'm acquainted with silverhead, he knows his stuff.

That too,... yeah.

Rewolf48,... yes. Using a regular CAT5 cable, it can jiggle and wiggle, and that can (and often does) bend and damage the pins in the VDI jack (in older Variax and JTV). And that can (and often does) damage or short out circuitry. We see this all the time. We've been telling everyone about this since the days of the early Variax guitars, to use the correct cable for the correct use. My lab mate has dealt with early Variax from the start, and I've serviced hundreds (literally, so I've lost count) of JTV's from its beginnings. We've seen too many bent pins in VDI jacks and too many shorted out boards,... please, use the correct cable for the correct use. Been doing this a long time (and I count in decades, not years). I have an old 300 Electric and four JTV's, only VDI's on them and never had a problem. I don't care what brand of VDI you use, just use a VDI cable. It will save you a lot of grief later. And it will keep your guitars from ending up on my bench.

That jack in the link is a JTV-69,... it won't fit physically and the electronic connections are not the same. Parts for JTV's are NOT interchangeable with the older Variax guitars (300/500/600/700). Do not use regular CAT5 cable,... use the VDI cable with the casing. Regular CAT5 will just wiggle around inside the jack, pins get bent and boards get shorted out. We wee this all too often here,... please, don't become a statistic. We've been warning people about that for years. And I think there may be something about that in the Pilot's Handbook. We see this on our tech benches all too often,.... use the proper VDI cable. Take the 500 Electric to an authorized Line 6 service center, or Line 6 itself. Don't try to open this can yourself,... leave it to the pros.

The Equalizer (EQ).

When you see a message like that, it's usually a time-out error of some sort. Re-Flash it.

That would do it too. Bravo.

Re-Flash it, do it again. It may take a couple of tries until you get a "update successful" message. Make sure you have green lights on the interface during the entire update process. If it asks to keep existing patches, click on "No". The last thing you want to do at this point is to save anything from a failed update. Follow the prompts.

Whichever you feel more comfortable doing.

Could be the jack itself, a solder point, or something upstream in the circuit.

Pull the knobs off, make sure the nuts holding the controls in are snug (not overly tight). This maintains the integrity of the chassis ground, and keeps intermittent contacts from occurring. Since it cuts off the speakers, then that part of the circuit works. And the plug is a TRS, so now that points to an issue with the jack on the amp. Intermittent connection inside the jack itself. It will need to serviced by an authorized technician in your area, or returned to the place of purchase for other options.

Does it cut off the speakers when you plug in the headphones?

I like maple too. Black 69S with maple-on-maple neck, played a couple earlier today,..... sweet!

Not frequencies, but other devices sharing those frequencies. It's an unregulated free for all frequency band,... so it gets bit crowded at times.

I have lots of experience with JTV's. A couple dabs of white glue. Take a photo and post it here, when you're done if you could.

Check for Line 6 authorized service in your area (Euro/Scandinavia region) for the one closest to you. If it's still under warranty, use it. The way it's wired on the inside, is not the same as a guitar with passive electronics. Someone mentioned ganged pot,.... not quite the way you think it is. Line 6 authorized service will have access to the service info. I'm the guy at Line 6 headquarters, who services JTV's. I see too many times when a JTV comes across my bench because someone got in over their heads,... and voided the warranty in the process. Going through proper channels is less trouble. The people at the "authorized" service centers will have experience with these,... and some else might not. JTV's are unforgiving for someone who has little or no experience servicing JTV's. Going outside the system is risky that way. And I'm in constant contact for assistance with my Euro counterparts, should they need any.

What Charlie_Watt said,.... most likely an intermittent connection. Log into your account and make sure the guitar is registered, then go into the Ticket system in your account and log a ticket. Then Customer Support will be brought into it.

Connect the JTV to Line 6 Monkey with the USB interface widget and check the Flash version of the JTV. If you have Flash version of v1.90 or earlier, then Workbench HD won't be compatible. Flash versions of v1.90 or earlier work with an earlier version of Variax Workbench. Update the Flash to the current v2.21 program, then try Workbench HD again.

When it comes to a Bigsby Bridge mod to JTV-59,... what Stevekc says.

Yes. But it's a good habit to remove them anyway. We've had a number of repairs in the past on earlier Variax guitars because of damage to that part of the circuit when too many things are plugged in at once. So it's a good habit to pick one at a time.

Oh good. Glad that's the case here. I've seen bad interactions with CMOS chips and rechargables in the past, with other products, at other places. Good, thanks.

Also a reminder about power,... -If using the VDI connector, take the batteries out,... don't run them together. -Batteries are used only when you are not using VDI or the XPS supply. So use VDI, or TRS with battery, or TRS with XPS supply and none of them in combination with another. Please.