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There's a lot of hocus-pocus in the pickup industry. In reality, Schaller made a LOT of pickups, probably millions of them and virtually all went to OEM's, like Heritage, G&L, and many, many others. They made whatever the OEM wanted to order, underwound, overwound, hex-screw poles, blades, single coil, humbuckers, magnet type, heck, pink polka dots and skull stickers if that's what they guitar maker wanted. Just like DiMarzio and Seymor Duncan offer dozens of variations. The Schaller Golden 50's, their "vintage PAF" flavor, are pretty good actually. Better IMO than Gibson 57 Classics.

Yeah, Rotomatics are incredibly heavy.

If you want to let go of them, I'll take them off your hands. If nothing else, send them to me and I can measure them and send them back unharmed.

Yes, I have. A bunch of them actually. Schaller made pickups from the same stuff everyone else does. Here's one fully apart. Alnico V magnet, 42AWG copper wire, 8.5k DCR, I have the electrical and magnetic measurements as well, Inductance, Ls 4.98 henries, Q2.02, Cs 98pf, DCR 8.394k. Also the same pickup being characterized on my oscilloscope with an exciter coil connected to a signal generator.

Car detailers will put the ozone generator in the smoky car, close it up tight, turn it on, leave it on overnight, or even the whole weekend. Rumor that it works on cars that may have had a deceased person in them as well. Ozone won't hurt most materials, but it may degrade certain foam rubbers.

I have a 1998 H150 CM, VSB. It was ordered from the factory with Seymour Duncan 59's, tune-o-matic bridge and standard stop bar tailpiece. I bought it a few years used, and have played for well over 20 years now. It's been a great, no issues instrument. It is a little over 9lbs, I'm getting to where that's kind of my limit. What's interesting is that swapping the zinc (heavy) stop bar for aluminum and the Grovers (also heavy) for vintage-style tuners would bring it under the magical 9lbs mark. It's always been very resonant. I've really done nothing to it all these years, other than change the pots a few years ago when one of them got to be a little funky.

I'm curious, what did you find awful?

Always had a soft spot for the H140. Hard to find a nice used one, most of them were well loved, played hard and put up wet.

Schaller did all kinds of stuff right. Lots and lots and lots of very well made Schaller guitar parts out there. The "Nashville Tune-o-Matic" bridge - Schaller. Look how many say, "made in Germany". Schaller right there. They made a lot of very good tuning machines used on a variety of brands. The Schaller GTM bridge, aka "roller bridge" works fine, just looks weird. The top-loader tailpiece is weird looking, but very functional, especially with fine-tuners, if you want fine tuners. Schaller humbuckers were well regarded in their day and widely used by the entire guitar industry. I've taken electrical measurements of them as well as taken them apart and honestly, they're well made and nothing bad about them. Guitar pickups are about 98.9% mythology and 1.1% actual engineering. There's only so many ways to wind two bobbins full of wire and stick a bar magnet between them. You might like something else, because it is different, but that doesn't mean the other is "bad". I also can't fault Schaller on the spare parts support and ease of ordering. I've certainly replaced many worn or butchered saddles and other miscellaneous stuff over the years and you can still order them right from Schaller in Germany. You can even ask them questions about stuff they stopped making 30 years ago and if they have the data, they'll actually try to answer your technical questions.

Ask a car detailer about ozone treatment. They usually offer it as a service to get smells out of cars. Wipe the guitar down with pure naphtha first several times with clean cloth and clean naphtha each time. Then ozone it. Ammonia based cleaners like Glass Plus really cut through tobacco goo, but aren’t safe for many guitar finishes. But ok on plastics and plated metals. A semi-hollow will be hard to clean the inside, hence ozone treatment is the best option. The case will be more difficult to deodorize. All the soft materials absorb odors. Fairly easy to replace though.

I got on the phone with Heritage and bought a b-stock, or "shop-worn" case at a nice discount. LOL, yeah, the guitar world makes no sense at all. So much is voodoo and superstition and the often silly, "conventional wisdom" from the interwebs. I'm an electrical engineer by training. I have the equipment to measure pickups magnetically and electronically. I can measure the coil inductance, capacitance, resonant frequency and I can take response plots using a signal generator, exciter coil and an integrator with an oscilloscope and make accurate frequency response Bode plots. If it weren't such a PITA to get to the wiring in a 335/535, I'd have measured these already. There's a little "white corrosion" I want to clean off the bodies of the pots, and I'm curious enough, that I'll get around to measuring these. The extra long solder joint on the covers of the HRW are a sign someone didn't want us in there easily. I've never seen images of one opened up. I have a pile of Schaller humbuckers in my work bench draw and I've measured them. It will be interesting to have an objective measure of these. Honestly, the difference in tone by setting the pickup-string distance was rather marked with the HRW, more than I think most humbuckers I've played with. I started at 1/16" from the string to the covers and worked them down, little by little. At a certain point, with just a little more distance, the zingy-ness dropped away and they got right into the zone. They have relatively strong magnetic fields, likely alnico-V magnets, as most similar Schallers and SD59's also have. The Custombucker III's in my Gibson have about half the magnetic strength at the poles, as they are alnico-III and they're happy to be very close to the strings.

I detest the absolute absurdity of YouTube videos like this. There are a couple of YT formulas to get a lot of hits on guitar vids, the first being, "...I can make this cheap used squier just as good as the custom shop all those rich guys paid too much for!" The other is "you can't hear it/yes I can hear it!" First of all, Gibson has churned out a LOT of things with the "Les Paul" model name on it. Thing is, they ALL SOUND DIFFERENT even though they all say, "Gibson Les Paul". It depends, what wood, what construction method, what hardware, what pickups and even what strings are on it, what it is plugged into and most of all, who's playing it. My 1998 H150 came with SD 59's, and Nashville Tune-o-Matic and a zing stop bar. It weighs a bit over 9lbs. It also came with 70's era Les Paul potentiometer in it, namely, 300K/100k volumes and tones. So, it sounded pretty dark most of the time I've owned it. I had occasion to replace a pot, was surprised to find the values and put in the more commonly used "vintage" era 500k pots. Incredible difference in tone, much brighter, fuller and a touch more output. I have a 60th Anniversary Gibson Les Paul 1960-Reissue, V2. It's 1 piece mahogany, no weight relief, 8lbs, 1oz in weight. It has the correct "'burst" era ABR-1 screwed into the wood and the light aluminum stop bar. It has the Custombucker III pickups, unpotted, alnico-III very PAF type in it, and the 50's era wiring. It does that, "beefy telecaster" Les Paul thing, in spades. Plus, at 8lbs, it is a joy on my aging back. These two sound incredibly different from each other, despite being so extremely similar in so many ways. But my Gibson Les Paul sounds incredibly different than a Norlin era Les Paul with the pancake body and a maple neck, and different than an 11lb example from the 1980's with Tim Shaw's, or T-tops, or any of the overwound, ceramic magnet pickups they offered at the time. So, really, no one can hear the "brand", but you can discern between instruments that were built differently, of different materials and methods, even if the brand and model are the same. My just acquired 2001 H535 is super light and it gets that classic 335 tone. I had a 1997 ES335 "dot reissue" that sounded like poo, no matter what you did with it.

Thanks everyone! I've been around at least one or more Heritage Forums over the last 20 years. I got my H150 back in 2002, when it was a used guitar (very used at that point!) from Buffalo Brothers at the Marin Guitar Show. The H535 is my latest acquisition. I was out looking for a fretless bass of all things, spotted this hanging in a corner and gave it a tryout. Kind of like "just looking" at puppies at the pound. When I first looked it over, was amazed at the condition, despite the used-guitar-shop, "grunge" all over it. They had misdated it as a 2020, but the R-serial number clearly dated it, along with the Schaller bridge and two-screw pickups. The black dot switch tip I also spotted as the HRW, and sure enough, there they are. Handwritten date corresponds with the serial number. I'll keep the Schaller bridge and tail aside, as there's nothing wrong with them and cosmetically, they're also in good shape. As I recall from the era, HRW were a factory upcharge and I think the wood was likely a factory upgrade as well. The top, back and sides are very "flamey". Virtually no fretwear, binding nibs all intact. Clean inside and out, very little dust inside. After a little setup work, I managed to find a sweet spot for the pickup height adjustments, where it really gets that semi-hollow sound happening. The HRW's are pretty hot but remarkably clear sounding. Tone control is also very effective, and a little tone rolloff sweetens them up without darkening them. The Nashville bridge and aluminum stop bar made it a little brighter than the Schaller hardware, both acoustically and in the amp. Bummer about the case. This one clearly lived most of its life in the case, but who knows where it went. Would have loved to have it. Looks like TKL cases are still Heritage's manufacturer. It fits very well in a modern, "brown vintage Gibson" case for a 335. Though it just seems weird to put a Heritage in a Gibson case, and I need to sell the guitar (an ES-135) that lives in that case now. If I get a chance, I'll measure the inductance, capacitance, resonant frequency and make a Bode plot of the pickups. I've been studying Schaller pickups from the 80's-2000's for another project. It will be interesting to see how they compare electronically.

New (used) guitar day for me. Picked up a nice clean, 2001 H535 in natural, figured maple with HRW pickups. Very little wear on it front or back, frets in very good condition. I had an aluminum stop bar and Nashville tune-o-matic bridge, so I swapped off the Schaller bridge and tailpiece. The Schaller hardware is ok, but the rollers on that style tailpiece tend to work themselves loose over the years, and I had the parts in my parts drawer. At 7lbs, 12-ounces, it is a really nice light weight. The label doesn't say "HRW", but the black-dot on the switch and the dates match, no sign that it has ever been worked on before, so it looks all legit as shipped back then. I know HRW's are not everyone's cup of tea, but I'll give them a fair shot. So far, it sounds really good with them. Sadly, the Heritage case didn't come with it. It looks like they're out of stock at Heritage, maybe I'll call Monday and see about it. It did come with a cheap, poorly fitting generic case. It does fit pretty well in a Gibson ES335 case. But there's some disagreement as to the ES335 vs. H535 dimensions, and I don't know if the Heritage case is specifically-fitted or not. It does appear the 535 might be a little thinner than the 335. The 2002 H535 joins my 1998 H150 that I've had for over 20 years as my second Heritage. The H150 came factory with SD59's, Nashville bridge and heavy stop bar. It's been a great guitar all this time too. Photo of the H535 after cleanup, swapping the hardware and restringing. Temporarily occupying a Gibson case.