Tube Amp Doctor has reissued one of the company’s mostsought-after products: the TAD 6L6WGC-STR Blackplate™ small bottle power tube is back inproduction after a 5-year absence.
The TAD 6L6WGC-STR Blackplate™ is the tube that has made TAD so popular with boutiqueamp manufacturers and vintage tone enthusiasts since 2003. A direct replacement for 6L6 and5881 tubes, it’s a remake of the small bottle GE6L6GC and has the same warm lower midrangeand silky top end as the classic GE versions of the 1950s and 1960s. Like the historic RCA5881, this tube features exclusive Blackplate anodes and a side getter.
The TAD 6L6GC-STR Blackplate™ and the TAD 6L6WGC-STR Blackplate™ feature TAD’sexclusive black-plate designs, gold grid wire, double getter construction, no-noise filaments and1.2mm thick heavy duty glass. This tube is approximately 80mm high (without pins) and canreplace 5881 and 6L6WGB tubes.
The newly reissued tubes feature the original design and raw materials from old stock, availablein limited quantities as long as the old stock raw materials are available. They’re the perfectchoice for vintage tweed and black panel amps such as the 1960 Bassman, Twin, Showman orSuper Reverb. The complex midrange and sweet heights are a class of its own. The TAD6L6WGC-STR is recommended for classic tone with warm cleans and rich, sweet mids whenpushed – and it’s great for fat jazz or blues tones.
- Delivers classic sound of the 1950s and ‘60s - excellent tone, maximum lifespan
- Tube Type: 6L6/5881
- Socket: 8 Pin(Octal)
- Identical construction, even tighter tolerances with improved production quality
The TAD 6L6GC-STR Blackplate™ and the TAD 6L6WGC-STR Blackplate™ are each priced at$48 (does not include VAT) / €46.50 (includes VAT) and are available at tubeampdoctor.com.
Our columnist’s collection of moon spruce, ready for inspection—with a view.
As players get older, our instrument needs change. Our columnist shares how he designed an acoustic adapted to arthritis.
For many acoustic guitarists, playing the instrument is one of life’s greatest joys. As a luthier, I’ve seen firsthand how deeply musicians cherish their guitars, something they look forward to playing not just weekly, but daily. As any guitarist knows, some guitars simply feel different. While some are more rigid and require extra effort to play, others feel smooth and effortless. With this in mind, as our playing needs evolve, so too may the instruments we choose to accompany us.
My clientele is diverse, ranging from musicians in their 20s to those well into their 70s and 80s. One common challenge I have observed is that as players reach their 50s, many begin experiencing arthritis, which can hinder their ability to play comfortably. There are several techniques luthiers use to improve playability, such as lowering the action or opting for a shorter scale length; for instance, switching from a Martin 25.4" scale to a Gibson 24.750" scale. But, over the years, I began considering whether it would be possible to design a guitar specifically for players with arthritis, allowing them to continue playing with less strain on their hands, shoulders, and overall body.
My guitars are already designed to be exceptionally easy to play. They are not built for aggressive strumming or rugged outdoor use, though I can accommodate various styles. Recently, I took this concept a step further for a customer, creating an instrument with a smaller neck. Moving away from the traditional 1.750" nut width, I refined it to a slender 1.675". The string spacing at the bridge was adjusted to 2 3/16" instead of the wider 2 1/4" spacing used primarily for fingerstyle playing. Additionally, I incorporated a 25" scale length for a lower string tension at full pitch.
Combined with a 13-frets-to-the-body design, these adjustments made the guitar feel significantly smaller and more comfortable in the player’s hands. To enhance comfort further, I used an orchestra-class instrument, and added both an arm and belly bevel, reducing strain on the player’s shoulders. Even though I chose an OM for this build, an auditorium-class design would work well, too.
However, the most crucial aspect of this instrument was the top, which serves as its engine. I selected a piece of moon spruce, personally sourced in Switzerland in August of last year. This type of spruce is lightweight and highly responsive. More importantly, when voiced and tuned correctly, it requires minimal effort to produce sound and it has a higher level of admittance.
“Any movement on the strings, whether by the picking hand or the fretting hand, requires significantly less effort than on a traditional guitar.”
Admittance is a crucial factor when evaluating any musical instrument, whether one you are building or considering for purchase. In guitars and tonewoods, admittance is the amount of sound that can be produced with a standard level of effort. If a piece of wood has a high level of damping, it will not produce sound efficiently when built into a guitar, resulting in an instrument that is less enjoyable to play. Conversely, if the wood exhibits an extremely low level of damping, the guitar may feel responsive and lively, but this does not necessarily indicate a well-balanced instrument. Damping must be carefully controlled, particularly in the soundboard, to achieve an ideal balance. A properly voiced guitar should provide excellent responsiveness, a full and resonant sound, and treble frequencies that are rich and warm rather than thin or overly sharp. Thus, when discussing these aspects of guitar construction and tonewood selection, the key term to remember is admittance. For this build I was looking for high admittance while retaining a deep, well-balanced tone.
For the player, this means that even with standard tuning at A440 and regardless of whether they choose light or medium strings, though light gauge is preferable, the guitar remains incredibly soft to play. Any movement on the strings, whether by the picking hand or the fretting hand, requires significantly less effort than on a traditional guitar. This is due to the top’s high flexibility and responsiveness, allowing for a soft touch while maintaining a respectable level of volume.
For those dealing with arthritis or other hand-related challenges, selecting a softer-playing guitar is essential. Shorter scale lengths can be beneficial, but having an instrument custom-built by a luthier who understands these considerations can make a significant difference. For my customers facing these issues, my goal is to ensure they can continue playing for as long as possible. I recognize how important the guitar is to their lives, and I want to help them keep playing without unnecessary discomfort. If you are experiencing difficulties, there are options available, and solutions worth exploring.
PG contributor Tom Butwin dives into five clever, gig-ready tuner options—some you’ve seen, and at least one you haven’t. From strobe accuracy to metronome mashups and strap-mounted stealth, these tools might just make tuning fun again.
Korg Pitchstrap Guitar and Bass Strap Tuner - Black
KORG Pitchstrap is the world’s first strap-mounted tuner and features a state-of-the-art technology that allows the tuner to detect the pitch of the guitar or bass from the strap’s vibrations.
Peterson StroboStomp Mini Pedal Tuner
The StroboStomp Mini delivers the unmatched 0.1 cent tuning accuracy of all authentic Peterson Strobe Tuners in a mini pedal tuner format.
Peterson StroboClip HDC High-definition Rechargeable Clip-on Strobe Tuner
The StroboClip HDC features a high-definition, color backlight display, rechargeable battery and over 65 Sweetened Tunings. With tuning accuracy of 0.1 cents, the StroboClip HDC is the ultimate clip-on tuner.
Cherub Pix Tune (WST-915Li)
The latest Cherub Pix Tune (WST-915Li) offers 16 vibrant display modes, allowing users to customize their tuning experience to match their own styles. There are 5 meter styles, 3 animal cartoon styles, 2 sports styles, and 6 user customizable styles. You can conveniently upload your boot-up animation and tuning display pictures through the accompanying APPs. With its engaging visuals, tuning has never been this enjoyable!
Taylor Beacon Digital Clip-on Tuner - Black
The Taylor Beacon combines a tuner, metronome, timer, and flashlight in one compact device, offering five tuning modes, 12 time signatures, and up to 100 minutes of practice timer.