Spare Parts Slasher (Keeley Katana Clone)

When I first started building pedal circuits I wanted to build a Keeley Katana clone. It seemed all the rage, so I figured I may as well have one. Back before I built all of my Klon Centaur clones, paying a few bucks for a 7660S chip for voltage adjusting seemed useless to me. I questioned why I even needed a charge pump when I could just use an 18v power adapter. At that time the only layout for the Katana Boost clone was from tagboard effects. It sat in the back of my mind for ages, because while I really wanted to build it, I didn't see the need for the charge pump, and I didn't quite understand how to remove it from the circuit/layout. Maybe one day... well today was that day! Actually, a few days ago was the day, because I decided to finally do the modification. I'm not a professional musician, so having the internal charge pump isn't as important to me as it would be to them.

The basic bones of the layout were left the same, but I did sub some oddball JFETs for the 2N5484s. I had a J103, J112 and K223 laying around, so I asked ChatGPT which would work best, and it claimed J103 for the clean boost (Q1) and J112 for the high gain (Q2). It claimed the K223 wasn't a really musically unusable JFET; this will be addressed in just a moment. I only had a C250k potentiometer, so I used that too. Everything else was left the same, and when it came time to test the circuit I got nothing whatsoever. After about an hour of back and forth with my old pal AI bot, I decided it was time to take the J103 out and replace it with the only JFET I had left, the K223.

The issue was J103's gate couldn't be pulled down to 0v, no matter what I tried. The little bastard fought me tooth, nail, source, drain and gate. There just wasn't anything I could do. Once I had subbed the K223 in as Q1 the circuit came to life. I adjusted it to the maximum clean boost and it sounds ok. Does it sound like a Keeley Katana boost? HAHAHA no. The transparency just isn't there. Does it work as a boost with two gain stages? You bet your skid marked underwear it does! Would it sound better with 2N5484s? Probably. I was scared to order parts to build this, being completely unsure if it would even work. I did make sure all components are rated above 18v, but this sounds perfectly serviceable even at 9v. The C250k doesn't sound too bad either, a bit of an odd sweep, but not unusable. Crucial detail: The J103 and K223 have different pinouts, and were adjusted to the required pinout.

I'm sure there are circuit builders who will come across this and think I'm an idiot. *tips hat* Howdy! I simply overthink everything, usually until I talk myself out of it. When I do follow through with something I've created or modified, I'm never confident in it. Ever. Even after the circuit has come to life, and it's been tested thoroughly. There's always a shaky voice in the back of my head telling me it's going to break and never work again. Especially once I've removed it from my test rig and packed it away. Weird stuff happens sometimes, and it makes no sense. For better or worse. Well, if you want to omit the charge pump and build a stripped down clone of the Katana boost, here you go. Full credit for the original layout goes to its original author in the link above. In the future I may build an external charge pump to have around, but for now an 18v power adapter works just fine, but it still does just fine at 9v.

The Best Bluesbreaker Overdrive Ever? *shrug*

In the previous entry I talked mostly about a Bluesbreaker circuit I had built which was inspired by a post I found on Reddit. Thanks to that post I used 2N5457 JFETs as clipping diodes, and it sounds really good. I have since done a few further mods, the first of which was swapping the 220k resistor for a 330k, which should add more gain. I'm not sure I like it. The gain increase is negligible to my ears, but there also seems to be a loss of touch sensitively. At first I thought it was just a placebo effect where my brain knew something had changed, so I became overly sensitive about the outcome. After taking a break from the circuit, I later cranked it up and tried it again. At least on mine there certainly is less dynamic range, but it's not completely gone. Whether this mod will stay in the final form is up for debate. I do have 300k resistors, which may give a slight increase in gain and bring back some touch sensitivity. We'll see.

Another mod I did was adding a presence control, which is inspired by the King of Tone's internal trimpot for presence, sometimes also called the treble adjustment. The Bluesbreaker already has a tone control, but adding a little more treble on top of that gives it more tonal options. It's simply taking a B50k potentiometer and placing it between the 6.8k resistor and 10nf capacitor that connect at volume lug 3. This is a very simple mod, and helps it sound and feel a little more like a King of Tone/Prince of Tone. I don't like how it works counter-intuitively, but at least it works. This mod absolutely will be making it to the final form.

The layout I used came from the tagboard effects website, which used the GGG schematic for their layout's base. This is (at least) the second time I've used this layout, as my very first Bluesbreaker circuit was born from the very same. The volume seems sufficient, so I assume any volume mod is already done in the GGG schematic. I did use a B100k for the volume, instead of Log, and the sweep works just fine. I've built quite a few Bluesbreaker clones and they've all been pretty good, but there just seems to be something special, to my ears, about this build. For the most part it sustains the Bluesbreaker tone while offering added versatility. 

Bittersweet Bluesbreaker Build

On this day, Tuesday 22nd of July 2025, I sat outside blissfully putting together one of my most exciting builds of the year. Six months ago I saw a post on Reddit where OP had built a Bluesbreaker overdrive and used J-fets instead of 1N4148 diodes in the clipping section. I was so impressed I put the kit together that night. Of course I had to order the J-fets, which were the tiniest little things you would ever see, and converter boards, but once they arrived I was excited. As much as I was excited, I was also quite put off by the fact I was going to have to solder the J-fets to the converter board. My micro soldering is absolutely horrible, but I knew I eventually had to make it happen.

Roosevelt is using a J-fet as a bluetooth ear piece

I was actually quite concerned about soldering the J-fets to their converter boards, but I did the micro soldering inside, in case anything went fucky, thankfully it didn't. The next day, today, I built the pedal and put the J-fets in the clipping section. It was a beautiful sunny day, with low humidity and decent 80 degree temps. I listened to my music as I was soldering, and just as I finished up and was about to head inside to test the circuit, I received a message saying Ozzy Osbourne has passed away. My heart sank.

On this day, the birth of this circuit, it also happens to be one of the saddest days in heavy metal. The overdrive turned out great by the way, but the glee of another successful build was smothered by the passing of heavy metals God Father. May he rest in piece.

Crazy ... but that's how it goes.

Bluetooth Headphones Are a Blessing... and a Curse!

Ever since I can remember headphones have been my most preferred way of listening to music. In the past I've discussed, and even reviewed, a few sets that I've owned over the years. It must have started when I was young, and I would sit in a Little Tikes plastic chair in front of my Dad's stereo cabinet. (70s, 80s and 90s kids know the one) One of my parents would set it up for me and I would listen to either the radio, their cassettes, or their vinyl records. My Dad had these puke green colored headphones from the 70s that I used. The main issue though was the fact I was tethered to the stereo by the headphone's cable. Being the rambunctious little scamp I was, I couldn't sit still. What if young Sam wanted to listen to his music AND get a snack, or some Mountain Dew, or my Teddy Ruxpin?

Back in the day there were some, let's just say very primitive sets of wireless headphones on the market. The ones I've tried weren't very good. They ate batteries quicker than a Sega Game Gear play-a-thon, and the range was pretty abysmal. My parents bought one set, which was meant mainly as a means to listen to TV quietly. There was a microphone which mounted onto the TV's speaker, that plugged into a transmitter, which sent that signal to the headphones. The transmitter could also be plugged into a headphone jack. Overall, they functioned, but they just weren't very good. There were probably much better, and more expensive, options on the market, but this was my experience with early wireless headphones.

It's now 2025 and I finally decided to delve into the world of bluetooth headphones, just to see what they're all about. Bluetooth has been a thing for quite some time now. I remember the days of thinking people were talking to me in stores, only to be 3 responses deep before I finally saw their bluetooth earpiece. Thank goodness those embarrassing days are gone, right? Right? I picked the least expensive pair I could find, just in case I hated them, and I have to say they're actually pretty nice. I've never been one to scrutinize the fidelity of headphones, so this pair may not be for someone who does. All I really require is something that delivers music to my ear holes. Most of my MP3s were ripped from CDs years ago, in mud quality, so I'm not a purest by any means.

It took me a while to adjust to wireless because I kept worrying about the non-existent cable in situations where I previously had to worry about the cable. After a while I noticed myself really letting go of the whole cable notion, to the point where I would sometimes forget where I left my phone. Now that I'm not tethered to my cellphone, I would set it down, walk around, and listen to my music as I went on about my day, forgetting where I had left it. I think the worst part is that sometimes I even get so caught up in what I'm doing that I forget I'm even listening to music, or that I have headphones on at all! I love the freedom of bluetooth headphones, but throughout my first 42 years of life I had become accustom to headphones being a certain way, that now I had to unlearn. Once I'm adjusted to them I'm sure everything will be alright. Finally at 42 I've learned it's better than being tethered to the music source, unable to listen to my music AND go get my Teddy Ruxpin.

140th Circuit Built

In the month since I've last updated everyone on my builds, I've built my 140th circuit build in total, which is nice. After the purple smoke I built a treble booster, that didn't turn out sounding too trebly, so at some point I'll need to go back over that one and adjust it. Then I built a Menatone Red Snapper, which is actually a really nice overdrive. Then I built a Caline White Heat clone, which is an op-amp based booster, which is also pretty nice. I socketed the op-amp and tested an NE5532, then an LF353, and finally one of the fake TL072 I have an abundance of, and I couldn't tell any difference. This excites me to no end, as I've been hunting high and low for a circuit that I can use these fake TL072s in without them sounding horrible. Now, not all of the fake TL072s sounded bad, but a majority of them do. I figure at some point I may test a few mods to this circuit and see if I can come up with something useful, that way the fake TL072s will finally have a purpose.

My 140th build is my latest project, which is another Lovepedal JTM Electra-based circuit. I'm playing around with it to see where I can take it. I've tested different clipping diodes to see what sounds best, and right now I'm liking 1N60P diodes. I added a volume control to the output, which isn't on the original. Using the 1N60P diodes quiets the circuit down quite a bit, so I'm not sure how useful the volume control is now, but it's a nice option to have. I might try some more clipping options, but that's for future testing. I knew this circuit was an experiment, so I mainly wanted it to be functional. There is still a lot I want to try with this one, and a lot I'll need to adjust. Regardless it is my 140th build.

I would like to say I'm going to stop building at 150 builds in total, but I'm sure I'll continue to build the occasional circuit beyond that. Currently I only have nine more kits ready to build, and I have two or three more that I want to put together, but I'll need to make another parts order. That might take a little while before I can make that happen, so I'm not sure when that will be. After the main 150 builds, my main focus will become to get the circuits that aren't currently working, or aren't working properly, finalized. Lately when a circuit doesn't work it's just been a silly mistake, so that's what I'm hoping for when it comes to everything that's been waiting years to be fixed. Although I may put together some more builds, I don't foresee myself building another fifty circuits to reach a total of 200. It's time I wrap this up and get my prototypes finished, housed, and fully ready to be used, as they were intended.

Another Involuntary Internet Detox

Imagine paying way too much for the internet you get, but only getting it occasionally. Or more accurately, only getting it at your ISP's leisure. That's the BrightSpeed experience. They are firmly amongst the world's most detested internet service providers, if you can even call them that. A few years ago our internet was out for an entire month, and more recently out for two weeks. Since BrightSpeed took over from or previous ISP, who themselves were pretty deplorable yet BrightSpeed is somehow worse, there have always been moments where the router needs reset, the internet drops out random, or slows down for seemingly no reason, amongst the complete outages without warning. BrightSpeed, should really run an escort service; as long as you're paying you're getting fucked. Everyday. Guaranteed. They lied about there being an outage, then acknowledged it and said it would be fixed in a few days. That time came and went, then they claimed it was fixed, when clearly it wasn't. After far more hassle than they're worth they finally said they would send out a tech, in a fucking month! Which proves they are such a mess of a company their techs are backed up fixing their horrible mess for a month.

I've been housebound since I had quite a hellacious anxiety relapse in June of 2018. I was making good progress in my recovery, that is until the plague of 2020 derailed that. In 2024 I decided it was time I made a massive change in my life, so I started seeking medical assistance to overcome this once and for all. I even started doing virtual therapy, which was pretty abysmal. Don't get me wrong, my therapist and I got on very well, but it just didn't give me the confidence I originally hoped it would have. In fact, I would be filled with anxiety a few days before the next session, so much so to the point it was actually better to just stop. Well, here we are over eight months later and I'm finally getting out of the house! After the first week of having no internet I finally decided it was way more advantageous to get out of the house and risk it than sitting and rotting away. For anyone else suffering with debilitating anxiety, let me assure you; I was in the house – apart from medical outings – for seven long years, and getting out isn't anywhere near as bad as your brain tells you it will be. I promise you! I PROMISE you! And it's worth it! The world is fucking amazing! So much has changed, but yet so much has stayed the same. Again, if you're reading this, and you been housebound for any period of time, please try it. Baby step it. I promise it's worth it. I'm actually finding getting out of the house has become addictive.

So, what have I learned from all of this? Firstly, I missed the world far more than I thought I did. I'm having a blast creating a network of places with open wifi. There are almost enough places that my VOIP phone app could get me through without ever activating my phone. Secondly, I hate normal TV these days. Without internet I only had access to local digital TV, which is mostly reruns of stuff I've seen ten years ago, or more. I hate the massive quantity of hokey infomercials trying to sell me junk too. The upside is, being forced to watch normal TV I've officially decided which local news anchor I have a crush on. I'm pretty sure she's married, but she is beautiful! Sucks to be me, I guess! I'll update you on circuit builds in another entry. This lack of internet stuff has really been draining.

Humbled by Humbuckers

When Cherrie King first arrived in my life, I knew I wanted that PAF humbucker goodness to accentuate her 335 tone. At first the stock pickups didn't sound very complimentary, so I just wrote them off as being from the era when stock pickups were simply placeholders. From the cheap import boom of the 80s into the mid 2000s almost all stock pickups were eventually replaced with Duncans, DiMarzios, or EMGs. It's only more recently that guitar companies have stepped up their game on stock pickups, now offering pickups that sound really good, and usually stay in the guitars they came with. My favorites are the new Epiphone pickups, which have become vastly more optimal than they once were. I'm not talking about the Gibson Burstbuckers they're putting into Epiphones, I mean Epiphone Alnico Classic Pro, and ProBucker pickups.

In my quest to find Cherrie the most budget friendly set of PAFs I've listened to a lot of youtube demos of the Alnico Classic Pros, and decided those are what I want. I even tested Cherrie's stock pickups side by side with a youtube demo of Alnico Classic Pros in an Epiphone ES-335. It's not the most scientific experiment, I grant you, but it did teach me something. These stock pickups aren't very far off the Alnico Classic Pros. They do have some characteristics of PAFs, even though they're super cheap, and I'm quite sure the magnet is ceramic. The bridge pickup has that Tele sound that everyone raves about in a "good PAF". The neck is a bit fatter, but doesn't muddy the clarity, although mine is microphonic. Again, this isn't anywhere near the best way to compare, but it did open my eyes to the fact that these pickups aren't far off from where I want to be. I shall call them PeaveyAFs.

I decided to take my experiment one step further and tested my Burstbucker Pros side by side with the PeaveyAFs. I recorded myself playing both my LP and Cherrie, then I listened back to the examples through headphones to see what any differences were. Again, two totally different guitars so this isn't the most scientific, but I found the neck BB Pro has a bit more of that nasal quality than the neck PeaveyAF, but it's certainly there, just more subtle. Also both neck humbuckers had a chime, like every note was wrapped in glass, that I really like. Cherrie's neck pickup was a bit warmer, but that's to be expected. Now, the bridge humbuckers were so close it really didn't matter. There was a slight difference, but again I think it might be the 335 warmth. The nasal quality was there, the chime was there, and again they both offer that Tele sound everyone wants in a PAF. I would need a computer analysis to really break down the difference in the bridge humbuckers. It was that close.

So, what have I learned? A set of ceramic magnet import pickups can sound really close to Gibson USA Burstbucker Pros, apparently. Even though these pickups were super cheap, I think Peavey may have put some real thought into them. There are no markings on them, which is super common on import guitar pickups, so I can't be sure they're anything special, but I will confess they're not as bad as I originally thought they were. I was wrong. Now, should I find a set of decent PAF copies at a fairly cheap price I'll most likely buy them, with plans of later swapping them out. Especially if they're Gibson 57 Classics, or some other really nice PAF copies. For now though, I'm pretty happy with what I'm hearing from the PeaveyAFs. I guess it shows how preconceptions can really cloud your mind into thinking one direction or another.

100k Views! Thank You!

At some point, I suspect back in late April or early May, this blog hit 100,000 views. A lot of these views come from really old posts that still get the odd hundreds of views in a single day, when spread around on reddit or somewhere. Most of my new posts are very slow burns, as the feed service I was using no longer feeds to my social media, but I know they'll find their readers eventually. I wanted to take a moment and express that I appreciate all the views, no matter how many or few they are. I'm not much of a writer, as my entries clearly display, but this blog has been a great source of solace for me. Hence, Sam's Asylum. It's become a focal point throughout many transitions in my life, and I just hope it's been a resource of many reasons to other people as well. I've tried to make this site as accessible to anyone who needs it as I can.

June of this year will be the fourteenth anniversary of my first post here. Sure, I wish things had gone better, but I'm sure they could have gone much worse. I'm pretty ok with it having ended up somewhere in the middle. I'll just wait to see what the future holds. Even beyond my existence on this world, I hope my insight is useful to someone. I know since publishing many of my posts, especially those often posted across help forums and such, better ways have been found to do what I explained within them. If it gets the job done I'm glad to help, but I would always advise looking for a better, more up to date method.

My initial idea was to chronical my growing interest in thrifting, and showing off what I was finding. I write for TheVintageGamers.com where I had a series called Sam's Scores. There I would show off all the vintage gaming stuff I had found, but I had nowhere to show off the more modern things that site didn't yet cover. Now that website isn't strictly just about vintage gaming, and my blog has turned into more a chronical of my life, my story and my dreams. Sometimes it's a rant, sometimes it's sappy, sometimes it's informative, sometimes it's just plain stupidity, but it's all me. My words, my thoughts all typed by my fingers tip tapping away at the keys while my mind dictates what needs to be written.

So, to all the readers past, present, and future, I humbly thank you for taking your time to read what I've written. I see all the countries you've viewed from. I see whether it's mobile or otherwise. I see what browser you're using, what OS you're using, and even where you were referred to my site from. Thank you. *Sam Elliot cowboy hat tip gif* Thank you!

Some quick stats and oddities:

• First post - June 23 2011
• Total posts - 349 (Including this one - so far)
• Total views at the time of publishing this entry - 106,000+
• Most viewed post - 3234 (Gameboy Color Speaker Repair)
• Most views in a single day - 9806 on August 31st 2023
• Country outside of the US who have viewed my blog the most - Singapore (24,600+ views)
• Oldest Unpublished Draft - September 18 2020

• There is one post with an Easter egg. It looks funny, because it was formatted to have a special message along the left edge. The person for whom it was written couldn't care less, but I had fun making it work.
• Last year I published entries in a certain order to spell out the essentially same secret message on the backend. Again, the person for whom it was done couldn't care less, but I had fun.
• I have written numerous entries simply to get it out of my head and delete, never to be seen.

Purple Smoke Boost Build

This one is a bit of a controversial build, by which I mean there were comments left on the original layout website about how pointless it was to build your own, when the real thing is already so inexpensive. Well to each their own, right? The original layout is perfboard, and since I absolutely hate building on perfboard I had to make my own stripboard layout. I know it's low component count but it's still difficult for my brain to translate it all over, and take into account all the jumpers and cuts. I have a habit of overthinking and under focusing. After a little while I managed to make the stripboard layout, but I completely forgot to get it verified by eyes and minds far better at this stuff than my own. Surely that won't come back to haunt me!

I'm a huge fan of low component count circuits that affect the tone in useful ways. This pedal was right up my alley. I have built plenty of boost circuits in the past, but this was one that I just had to build for no other reason than I could. Again, very few components, self made stripboard layout and I was ready to build it. It had been months since I made the layout, and it only dawned on me as I was putting it together that I forgot to get it verified. It didn't take me long at all to put this together, which is when the nerves started to act up. Was this going to work or not? It worked just fine. The confidence boost I got off of this is better than the boost effect itself. I can translate a perfboard layout to stripboard if I take my time. If you're a stripboard builder like me and you've wanted to build a Caline Purple Smoke clone, here you go. It is now officially verified.

The Joy of Discovering Joy Clark

Since I bought my Peavey JF1 EXP (aka Cherrie King) I've been doing a ton of research into semi-hollow guitar players. I'm looking for ideas on how to get the best out of Cherrie. What effects, what amps, what types of songs sound best with a semi-hollow. While my intentions are blues and rock, I'm also open to finding new ways to help express Cherrie's voice. I'm well aware of Freddie King, B.B. King, Warren Haynes, Larry Carlton, and Trini Lopez, but during one search the Google image results showed a new face that piqued my interest. A woman holding a blueburst D'Angelico semi-hollow, with a radiant presence by the name of Joy Clark. I let it sit in my mind for a couple of days, by which I mean I kind of forgot, before I went searching for some of her live performances on youtube.

What I found was the Crescent City Blues & BBQ Festival 2022. I settled in and watched, mostly hoping to see if I could capture a glimpse of what pedals she was using. First off, she was using a cherry red Epiphone with P90s that sounded really good. Her pedalboard seemed to be split into a few tiny ones, none of which I could tell exactly what they were. Her amp looks like a Fender tube amp, which also sounded good. What I didn't expect though was for her performance to completely enrapture me. Her energy, her smile, her voice, her playing style, her tone, everything about this performance made me forget what I had originally set out to do. I have to admit two of her songs: Watching You Sleep and Good Thing, had me in tears throughout.

My musical tastes are broad, but I never thought I would become so caught up in a performance. Joy Clark is more than just a singer-songwriter, she's a performance artist. I'm grateful her music came into my life. Just a simple internet search for semi-hollow guitar players became far more meaningful than I expected. I still don't know what pedals she uses, but I don't really care because it's more about her playing style, her energy and her presence to me now. And her garsh dang enchanting smile! Most of her set was acoustic, but she did start off with her Epiphone and brought it back toward the end. The search to find out how she made that Epiphone sing was abandoned the second she started singing. From then on, she had me in the palm of her hand, hanging on every word, reliving my own pain through her words. In a cathartic way that is. This was the joy of discovering Joy Clark.