tonymckenziecom | 4 years ago
The Mesa Boogie Recto whatever model you have might well 'pop' when you change channels either with or without the foot controller. It's a problem that's been with many of the models for years. But now one engineer at Tubes and Stuff has created a modification board that can reduce the inherent 'POP' dramatically. Here I show the board, install it & also offer some advice regarding problematic foot control channel change issues. Thanks also to 'Burn Back Time' for his input too which was actually invaluable.
Index:
0:00 Start
0:12 The Floor Pedal issue & fix
1:15 Info from viewer Burn Back Time & Alex @ Tubes and Stuff
2:00 Bold & spongy voltages & the switch
3:33 The foot switch demo in bold & spongy mode
6:12 Diode mod and the relay responsible
7:24 The pedal problem in a nutshell - use bold!
7:40 Demo of the 'pop' when changing channels
8:30 The pop mod board
8:57 Install & test the pop board in the amp
10:00 Closeup installation: Fix the board in
11:31 Print the instructions!
13:38 Revision D Mesa Rectifier board and variation from later
boards
15:48 Mute switch wiring
17:39 NOTE: A mod I did to reduce the hum
18:38 The first test - BANG!
19:43 How I fixed the problem!
22:52 The test after the mod
23:53 Summing up & conclusions
26:22 The resistor that drops the voltage to relays in spongy/bold
modes
What you will learn:
Is the recto a great amplifier for guitar?
When is the modification available?
The demo amp looks old?
So is pop an ongoing issue?
What's the story about 'spongy' mode?
Will you be able to fix this problem?
Do I need to be qualified to do this - best to be safe?
After many modifications to the triple recto shown I turned my attention to the incessant 'popping' that happens when I change channels on the amp. After scanning around for a while I found a company called Tubes & Stuff on Reverb that had actually addressed this problem with a mod board. Great news.
So here is Alex's details @ Tubes and Stuff if you want to research this board further:
This email address: TubesAndStufff@gmail.com (note the extra 'f')
A Reverb listing: https://reverb.com/item/36524681-channel-switching-mod-for-mesa-boogie-dual-triple-rectifier-3-ch-2000-2009
and Alex made a video all about the mod: https://www.youtube.com/watch?v=c_l693HkRGg
One thing is that Alex is also a very friendly guy and I'm sure that he would love to hear from you so don't be shy :)
Now then, if you have heard of the 'pop' problem before and you solved it then do come and tell me what you found... I'm all ears :)
I also show (at the start of this video) a problem about the foot controller where I was having many problems - and I show what I learned
about the amp in question and issues with relays - watch the video for that.
I also cover the exact problem I was having in an earlier video here: https://youtu.be/3yzdZL5xFGI and I have a playlist on the whole series of refurbishing this amplifier here: https://www.youtube.com/playlist?list=PL2HoYOlX1LUJk6FYjOMQrGudRnRW1FBQZ
Hope you like it all. Just so you know:
All parts were bought by me personally - an ordinary user and owner of this amplifier and I was not given anything - it's a totally genuine review of what I bought from Tubes and Stuff and what I did to improve the amp. As an ordinary user my experience with any buying or use is exactly what yours might be.
If you are not a qualified engineer that has experience of working on tube or valve amps with up to 500 volts or more inside then do NOT attempt these modifications as there are very high voltages inside all valve and tube amplifiers, but you are more than welcome to watch what I did with my amplifier.
Remember I'm an 'old dog' but that fact alone might tell you that I have had lots of practice over the years that helps to keep me safe.
Visit http://www.tonymckenzie.com for more incredible reviews or my YouTube channel tonymckenziecom
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#mesarectifierproblems #channelpop #floorpedalchannelswitch #tonymckenziecom
