Are there any good Plexi kits?
- Thread starter gybe!
- Start date
harddriver
Well-known member
I would go all Valvestorm, he has just about everything and he is great to deal with, ships fast. I highly recommend the Metro Dagnall C1998 output transformer(built by Heyboer) or a Merren Output transformer, Just about any quality power transformer will do the job that is spec'd right but Heyboer or Merren are extremely well built and give years of trouble free performance.
If you can find the old Metro step by step build instruction with the pics they are essential to the first time builder. George might even have them PDF downloadable on Metroamp.com
If you can find the old Metro step by step build instruction with the pics they are essential to the first time builder. George might even have them PDF downloadable on Metroamp.com
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I second valvestorm. But if you want a packaged bundle go with Ceriatone. Mojotone was a mess. Also if you want to go the PCB route Headfirst Amplification has ST1 based boards which can do a plexi or 800. I have a plexi and an 800 built with it currently that has been great. He includes layouts and BOM.
Kapo_Polenton
Well-known member
Headfirst Amps has a cool site with mods.. Jake E Lee mod looks right up my alley and I am assuming it is based on the Friedman JEL. (it is..it is in the documentation)
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glpg80
Well-known member
I’d go Ceriatone and have them upgrade all of the caps/components to the good sozo made in USA stuff.
I’d recommend Merren for OT and Marstran or a Heyboer direct PT.
Ive had better luck with the phenolic tube sockets over ceramic as ceramic will crack if the head ever takes an unfortunate spill. They also crack if over tightened.
I’d recommend Merren for OT and Marstran or a Heyboer direct PT.
Ive had better luck with the phenolic tube sockets over ceramic as ceramic will crack if the head ever takes an unfortunate spill. They also crack if over tightened.
Honestly I can't really see that much of an upgrade with Nik's parts vs the sozos. The transformers would be best to buy local not that they sound bad just the amount you would save on shipping.
Having said that I gutted my Ceriatone plexi and rebuilt it with a headfirst pcb.
Racerxrated
Well-known member
If you go Ceriatone DO NOT get the transformers from them. Get them from the aforementioned Merren, Marstran or Heyboer. I speak from experience as I've had a Ceriatone PT shit the bed 6 months after buying it new.
Just a word of warning.
Man Ive heard horror stories but Ive never had any issues with their transformers. Maybe they got whatever the issue was resolved or switched vendors. But if you are building an amp Nik's transformers are going to be just as expensive if not more as US made ones after shipping.
scottosan
Well-known member
Depends on the circuit. He’s got jacked up filtering on a lot of the Hot rod plexi line
Rick Lee
Well-known member
I have the instructions for the Valvestorm/Metro kits if anyone needs them. I'm looking into an OT upgrade for my real 1987x. What to put in there? I have Merrens in my 1959 clone build, but Chris just never answers emails or vms. How to buy from him now? CT is out of business, MM is insanely expensive.
Racerxrated
Well-known member
I asked Chris about a PT for my 72 Trem, as mine is from a mid 70s Marshall so it measures at 490v instead of the monster 540v that the 72s could come with. He answered me within 2 days.
Scumback Speakers
Well-known member
I went with the Metro (now Valvestorm) kits 5 times. Got them with upgraded SoZo signal caps (the high end ones, not the base SoZo's), Mercury trannies and NOS glass. Pretty frigging close to a real Plexi at that point, as I've had them side by side using a Metro amp switcher to flip back and forth through the same cab.
glpg80
Well-known member
Yeah that’s what I mean about the sozo caps as well - the marked made in USA old looking ones. They’re killer sounding caps and what I use exclusively in negative feedback mods. Expensive as all get out though, you have to have deep pockets and know what you want.
SpiderWars
Well-known member
Those Mojotone kits posted above are a great value considering they include cabinet and tubes. I'm buying parts for a Valvestorm '69 SL and I'm way over that already and I haven't even bought a cab...or tubes. The sticker on the OT looks like Heyboer.
But if you want a nicer cabinet and would not use those JJ tubes anyway then the kit might not be the best choice. I really like Sourmash cabs and EH EL34s...but that's about $400 right there after shipping. And I went with MM iron which is crazy expensive (I justify by saying "it only hurts once") so piecing it all together at Valvestorm worked. So just the Sourmash cab, power tubes, and transformers is more than that whole kit. It can get really expensive if you go all out with NOS parts/tubes.
But if you want a nicer cabinet and would not use those JJ tubes anyway then the kit might not be the best choice. I really like Sourmash cabs and EH EL34s...but that's about $400 right there after shipping. And I went with MM iron which is crazy expensive (I justify by saying "it only hurts once") so piecing it all together at Valvestorm worked. So just the Sourmash cab, power tubes, and transformers is more than that whole kit. It can get really expensive if you go all out with NOS parts/tubes.
Scumback Speakers
Well-known member
I've done 60's Mustards in two of mine, so don't think the SoZo's are expensive. You'll pay 3-5 times more for a complete set of Mustard caps from the 60's.