AMPEG amp convert

satelitis · 24th March 2006, 01:13 PM

Good day

A friend of mine owns an Ampeg VH150 quitar amplifier and he ask me if there any possibility to convert it from solid state to tubes.

Any suggestions?

Thanks
Chris

poobah · 24th March 2006, 01:58 PM

Nope... everything is entirely different. The only thing you might be able to use over is the speaker, cabinet, knobs, and face plate... really.

satelitis · 24th March 2006, 02:14 PM

Yes that is what I was thinking...
Do you know the sensitivity of the speaker units on VH150?
I was thinking of building a tube amplifier and use only the speakers and cabin from the Ampeg amp.

I build power amps using tubes for HIFI but never for instrument before.
So please Im going to need some help on this.

Tubes are not an issue, I have almost any type of them

Thanks

raintalk · 25th March 2006, 12:37 AM

Build him a tube preamp.
One with a couple of stages so that one stage can overdrive the next.
Or look to building in a Paia Stack-In-A-box into the head.

maxwedge · 25th March 2006, 01:26 AM

Build him a fender clone.

Lots of schematics are available and I'm in the proccess of building a 80 watt 'black face' Twin for myself.

http://www.ampwares.com/ffg/index.html
https://weberspeakerscom.secure.poww...tore/kit_r.htm

http://www.schematicheaven.com/index_FLASH.htm

Ahmad_tbp · 30th March 2006, 10:45 AM

hi
u can build a tube preamp and use the VH150 power amp , it will sound great ,
but if u want a full tube amp , take a look at : http://www.drtube.com/guitamp.htm
lots of original schematics of famous tube and ss amps ,
u ll find original ampeg , marshall , fender and .. amp schematics

raintalk · 30th March 2006, 04:56 PM

I ran across this in another forum.
Take a look at:

http://milbert.com/articles/TvsT/tvtiega.html
(It's a little dated)

then do a little blind test yourself and your friend and see if he really can hear a difference.

24th March 2006, 01:13 PM	#1
satelitis diyAudio Member Join Date: Nov 2002 Location: Athens, Greece	AMPEG amp convert Good day A friend of mine owns an Ampeg VH150 quitar amplifier and he ask me if there any possibility to convert it from solid state to tubes. Any suggestions? Thanks Chris

30th March 2006, 10:45 AM	#6
Ahmad_tbp diyAudio Member Join Date: Jul 2004 Location: Iran/Shiraz	hi u can build a tube preamp and use the VH150 power amp , it will sound great , but if u want a full tube amp , take a look at : http://www.drtube.com/guitamp.htm lots of original schematics of famous tube and ss amps , u ll find original ampeg , marshall , fender and .. amp schematics __________________ Rest my eyes from the world. This dying place, it's so absurd.

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24th March 2006, 01:58 PM	#2
poobah diyAudio Member Join Date: Nov 2005	Nope... everything is entirely different. The only thing you might be able to use over is the speaker, cabinet, knobs, and face plate... really.

24th March 2006, 02:14 PM	#3
satelitis diyAudio Member Join Date: Nov 2002 Location: Athens, Greece	Yes that is what I was thinking... Do you know the sensitivity of the speaker units on VH150? I was thinking of building a tube amplifier and use only the speakers and cabin from the Ampeg amp. I build power amps using tubes for HIFI but never for instrument before. So please Im going to need some help on this. Tubes are not an issue, I have almost any type of them Thanks

25th March 2006, 12:37 AM	#4
raintalk diyAudio Member Join Date: Jul 2004 Location: Seattle USA	Build him a tube preamp. One with a couple of stages so that one stage can overdrive the next. Or look to building in a Paia Stack-In-A-box into the head.

25th March 2006, 01:26 AM	#5
maxwedge diyAudio Member Join Date: Jan 2004 Location: CA	Build him a fender clone. Lots of schematics are available and I'm in the proccess of building a 80 watt 'black face' Twin for myself. http://www.ampwares.com/ffg/index.html https://weberspeakerscom.secure.poww...tore/kit_r.htm http://www.schematicheaven.com/index_FLASH.htm

30th March 2006, 04:56 PM	#7
raintalk diyAudio Member Join Date: Jul 2004 Location: Seattle USA	I ran across this in another forum. Take a look at: http://milbert.com/articles/TvsT/tvtiega.html (It's a little dated) then do a little blind test yourself and your friend and see if he really can hear a difference.

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