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New to forum - Looking for Vox Escort build advice

Started by chumbox, February 09, 2017, 09:10:22 PM

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chumbox

Hi All

First of all I'm new to this forum, long time lurker.  Been building pedals for a while and now looking at trying my hand at an amp.  Thought I'd start simple with a Vox Escort style solid state design. 



From what I understand the TBA810 chip is hard to get and I should replace that part of the circuit with TDA2030 style power amp.  Since I know little about the process can I literally shave of the preamp section at 0.1uF cap following the volume and then replace the poweramp section with a TDA2030 design?  If this is the case are there good TDA2030 circuits I should be looking at?  I am hoping to pull somewhere in the 10W plus range out of the amp if possible, considering the original was 2.5W.

I apologise for the complete noob questions but I'm pretty excited to be attempting my first SS amp.
Thanks in advance
:)

maiko

Just built one on january

look at the general guitar gadgets http://www.generalguitargadgets.com/effects-projects/amps/tda2030-amp/

You can use a TDA2050 for more volume as i did.

the thing about it is that it need a dual powersupply but that should not be too hard to make.


J M Fahey

You have 2 options:
1) if you will always use it with mains power, then build a split supply TDA2030 straight out of the datasheet andnusethepostivevrail to feedbthenpreamp.
2) if you want portability, use a TDA2003 and feed the whole amp with rectified 12VAC, which will give you about 16V DC.
The day you want to rock the beach you use a 12V battery.