MesaBoogie 400+ clone

ZloFF · 7th June 2006, 07:35 PM

Hi all.
Does anyone have an circuit schema of this amp.
I'm going to build mesa clone.
If all'll go good i'll post photos and good schematics, maybe post an small article

showdown · 7th June 2006, 07:52 PM

Mesa 400 schematics can be found here.

gl · 7th June 2006, 07:53 PM

The last time I looked into this the only person posting Mesa Engr schematics on the web was someone in Holland. Mesa severely discourages posting schematics and reverse engineering their products. There are numerous rumours on the web about them designing their amps with that in mind. Sorry I don't have better news for you.

GL

gl · 7th June 2006, 07:57 PM

Yes that's the site I remember. Be careful with these schematics. I've heard stories that there are problems concerning the accuracy of them. Some of them are also difficult to read. That said, if it was me, I wouldn't be discouraged. I would give them a try.

GL

showdown · 7th June 2006, 08:05 PM

Yeah, some of them are not accurate. The V-Twin schematic is way off with regards to component names/numbers, I had to do quite a bit of guesswork when modding mine.

ZloFF · 7th June 2006, 09:07 PM

thks a lot.. still searching all over the web.. it seems no chance to find schemas. Concerning to mesaboogie 400.. a lot of the same awful qlty schemas and not good amp. i've used it for 2 years. good, sometimes great but not more...

nkwenti · 27th June 2006, 10:28 AM

Hi all i have a schematic here and i am to do some changes with it to replace the Bd318/317 to use 2sa1964/2sc5200
will that be a good idea
Here is the link
http://www.geocities.com/kobraelectr...ar100w40ma.gif

lt cdr data · 27th June 2006, 11:37 AM

hmmm I had the baron, which is roughly the same circuit, and it didn't sound fab, ok, fine amp, but a home built mullard 5-20 type bettered it for considerably less.

7th June 2006, 07:35 PM	#1
ZloFF diyAudio Member Join Date: Jun 2006	MesaBoogie 400+ clone Hi all. Does anyone have an circuit schema of this amp. I'm going to build mesa clone. If all'll go good i'll post photos and good schematics, maybe post an small article

27th June 2006, 10:28 AM	#7
nkwenti diyAudio Member Join Date: Jun 2005 Location: bamenda	hello Hi all i have a schematic here and i am to do some changes with it to replace the Bd318/317 to use 2sa1964/2sc5200 will that be a good idea Here is the link http://www.geocities.com/kobraelectr...ar100w40ma.gif __________________ stt

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7th June 2006, 07:52 PM	#2
showdown diyAudio Member Join Date: Jun 2005 Location: Norway	Mesa 400 schematics can be found here.

7th June 2006, 07:53 PM	#3
gl diyAudio Member Join Date: Dec 2003 Location: Sierra Foothills - California	The last time I looked into this the only person posting Mesa Engr schematics on the web was someone in Holland. Mesa severely discourages posting schematics and reverse engineering their products. There are numerous rumours on the web about them designing their amps with that in mind. Sorry I don't have better news for you. GL

7th June 2006, 07:57 PM	#4
gl diyAudio Member Join Date: Dec 2003 Location: Sierra Foothills - California	Yes that's the site I remember. Be careful with these schematics. I've heard stories that there are problems concerning the accuracy of them. Some of them are also difficult to read. That said, if it was me, I wouldn't be discouraged. I would give them a try. GL

7th June 2006, 08:05 PM	#5
showdown diyAudio Member Join Date: Jun 2005 Location: Norway	Yeah, some of them are not accurate. The V-Twin schematic is way off with regards to component names/numbers, I had to do quite a bit of guesswork when modding mine.

7th June 2006, 09:07 PM	#6
ZloFF diyAudio Member Join Date: Jun 2006	thks a lot.. still searching all over the web.. it seems no chance to find schemas. Concerning to mesaboogie 400.. a lot of the same awful qlty schemas and not good amp. i've used it for 2 years. good, sometimes great but not more...

27th June 2006, 11:37 AM	#8
lt cdr data diyAudio Member Join Date: Dec 2003 Location: earth	hmmm I had the baron, which is roughly the same circuit, and it didn't sound fab, ok, fine amp, but a home built mullard 5-20 type bettered it for considerably less.

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