Rivera Fifty Five Twelve - Part 2
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- Опубліковано 30 січ 2024
- Webpage: www.bradsguitargarage.com.au
Facebook: bradsguitargarage
Instagram: / bradsguitargarage
Equipment:
Soldering:
Pace MBT station w/SX100 & PS-90 handpieces
Hakko 474 w/815 handpiece
Hakko 936 w/907 handpiece
Hakko FX-888D w/FX-8801 handpiece
Quick 861DW hot air station
BOFA fume extraction unit
Loctite Multicore solder (C511 / 362)
Test Equipment:
Fluke 11, 175, 177 & 179 handheld DMM's
Tektronix 2236 analog oscilloscope
Rigol DS-1054z digital oscilloscope
BK Precision 4017A sweep / function generator
BWD 160a function generator
HP 6236B triple output DC power supply
Kyoritsu 3132A insulation / continuity tester
Video equipment:
Overhead cam: Panasonic HC-V785 w/Audio Technica AT9946CM mic
Handheld cam: Panasonic DC-G85 w/Olympus M.Zuiko Pro 12-40mm f/2.8
On location cam: Panasonic DC-GH5s w/Panasonic-Leica 9mm f/1.7 & 12-60mm f/2.8
Capture card(s): Magewell HDMI USB, ATEN UC3020-AT, ATEN UC3021
Headset Mic: Audio Technica BP892xcW-TH
Lapel Mic: Rode Go
Editing: Adobe Premiere Elements
Hand Tools:
Wiha, Felo, Stanley screwdrivers
CK & Engineer cutters / pliers
RS Pro wire strippers
Sidchrome & Gear Wrench spanners, sockets & shifters
Veritas planes & chisels
Materials / Consumables:
JJ's / TAD electron valves
Elixir / Ernie Ball / D'Addario / Rotosound strings
Electrolube & DeoxIT cleaners, lubricants & chemicals. - Наука та технологія
You do a great job with the videos and never mislead the viewers, unlike some. Interesting video 👍👍
As always, an excellent video. Thank you Brad!
Great job!
Thanks, dude!
amp sounds quite nice, great job as usual Brad!
Huge props on the transparency and balls using that solder sucker! Gives me the willies just waiting on a pad to get lifted, but you've got the skills. I ruined my pcb about 20 years ago using a cheap Chinese desoldering gun. Live and learn! I've also discovered that running a 400hz square wave into the input can often provoke oscillations that a clean sine wave won't.
Nice, Thanks.
A de-solder tampon, hilarious!
The bell housing whine you found solved and age old problem on one of my amps. I love my rivera amps, replaced all my mesa amps with them.
Great video! I have 4 Rivera amps right now (I don't have a problem I think), and the later amps all have the reverb tanks in vinyl bags, so they did improve on that. It is also pretty normal for their combos to have the chassis recessed like that. They make a similar amp called the Chubster with a deeper cab, and the chassis is even more recessed.
I had this very amp back in early '00s, and mine certainly had a bag on the reverb tank. I have a feeling this one might have got lost -- perhaps in that previous repair?
@@erajad I also have an R55-12 from probably 1993, just like the one Brad was working on, and it was set up identically: no bag and shielding on the bottom of the cabinet.
@@tbonesullivan Wild. I envy you your Rivera collection, btw, and miss my old one. :) Glad you're enjoying yours!
You are a mad scientist mate. Excellent video. You always put out excellent content regardless of whether it has sound samples or not. Toss a beer in the ole gullet for me.🍻🎻🎸☘️ I’d heap rather be lucky than good lol 😂.
those Rifas are the first to be replaced in Revox stuff - when they blow, you're not popular in the house!
Capacitor scent should be bottled for electronics engineers as perfume 😀
Broken wires in the reverb tank? No way!!😂. Btw, my R55 cabinet also extends the same from rear of chassis. Likely designed this way for the purpose of sonics, aesthetics, or other?
I've been wanting to buy a rework station for a few years. I checked the price on that Pace you've got and I pooped my pants a little.
Fascinating video! I'm the numpty who asked "Where's part 2?" on the Part 1 video. :/ And here it is! Well worth the wait! When I had a Rivera R55-12 for a few years back in the early 2000s, it was my pride and joy ... but my memory is that I always had a struggle to dial in the "sound in my head". And the "Ninja boost" was too big a jump to be truly useful for me. Still, solid little combo, and I appreciated the care you took in this exercise in resurrection. :) Thanks, Brad!
I actually really like this amp. I had a little extended jam on it when it was done, which I often do subconsciously when an amp sounds really good. I should have clarified that my comments at the end about it not being my cup'o'tea was due to the quirkiness that I ironed out later. I kinda think I knew something wasn't quite right, but there was a deadline and I'd never had that unit in person before. Listening to the audio when editing the video and advice from those who have owned one is what made me make the re-call.
@@BradsGuitarGarage That's somehow gratifying to know! Thanks for taking the time to comment.
@ 17:55, having the recess could prevent accidental cable/jack damage when walking close behind the amp on a dark stage!
Not only did you admit your mistake, but when you realized it, you fixed it at no charge. I've got to give you credit for that. I've learned a lot from you, Lyle, and Jason.
Who is the Jason of whom you speak?
@@retread1083😂
@@jm6651 no, that's a serious question.
Jason runs Headfirst Amplification, and has a great UA-cam channel.
@@retread1083 yeah for sure. I laughed because I liked the way you asked the question.
Brad, Brad, Brad! 400Hz please. I am so jacked up on Tylenol and Motrin and my head still hurts.
I'll try to remember in the future.
I kinda like 1KHz. Soz.
When you hear it, it's often a sign of success, so there's a Pavlov's Dog kinda dopamine response for most techs. LOL!
Someone posted a video about Marshall's transformers also. Sounds like those bells like to Sing.
If ya want/need reverb tank bags, I can make them.. give me a reason to fire up the old industrial sewing machines haha.
I respect the build quality of Rivera, but there is something off putting hi fi about how they respond imo. However, I dig the features and certainly would consider one if I jived with it.
lol funny as ever
Pull for Ninja? WTF does that do? Give the amp more kick I guess. Could be some kind of stealth mode too I suppose.
Re. That microphonic V1. Are there any circuit faults with amps that can cause a microphonic tube to to behave even more so, or is it all down to the tube? JMP 1987 clone in this case. I tried every 12AX7 I have, plus swapped the tubes in the amp around. Some were a bit less microphonic than others, but none of them passed the chopstick test. Bummed me out, because three of them are vintage tubes that tested really great in every other respect. I'll try a JJ short plate or something I guess. That or just make an appointment for it to see the amp doctor. :P
Hey Brad. Nice videos you do. I’m just wondering what area you in. I hope it’s Sydney. My technician is retiring soon. Thanks
Emu Plains, NSW mate. Just at the foot of the Blue Mountains.
Thanks for the reply. That’s not too far for me I will be sure to reach out next time I need some work done.
If you hit the cover with a hammer or mallet, it will change the resonance frequency and stop the noise. Ask Lyle and Jason. They'll tell you the same thing.
Yes, I ended up doing that with my rawhide mallet later, as there was still a slight whine even with the rubber installed.
hmmm, doesn't sound as good as a mesa....
Hi Brad, what did you change the RIFA cap with? I have a Rivera Knucklehead 100 that blew the cap, when I opened the amp it was missing with signs of a mess after it blew.
I bought them amp and it has worked well, recently started making noise on startup that would go away after 2-3 mins, hence I opened it, and the issue was the voltage regulator caps were leaking, changed them and noise was gone and amp back to normal but still missing that C2