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I will add my support to this as I have a special project in mind for one of these - I want to encase it in epoxy!

I have an Amp32PS kit that I'd like to swap for an Amp32 (basic) kit. If anyone is interested let me know and we can discuss early in the New Year.

I had a similar requirement for insulation on the amp 32 so I used M3 nylon screws. Normally used in aero modelling as shear screws to allow the wings to detach from the fuselage in a crash and...

I can't remember exactly what I used - I think it was a 500mA quick blow fuse 20mm glass type with an ordinary in line holder. Once tested and OK change it for a 3-4A fuse. Good luck - I will be...

You can test chip leads to pads with continuity tester. Also check to see no shorts onto nearby capacitors. ESSENTIAL to put inline fuse on the +ve supply when testing. I find just attaching the...

Yes that braid is really good stuff. Some hi res photos at: http://www.flickr.com/photos/10644251@N04/7978649250/sizes/h/in/photostream/ and...

The pins actually labelled 1-4 on the inside are the positive. The pins on the edge of the board are -ve and common so don't need bridging.

If you look at the instructions it says that all 4 channels MUST be driven so if you are only using 2 (stereo) then you must bridge 2 of the input pins as I said earlier (also see the photo I have...

Normally you bridge the input to make 2 channels i.e. pins 1-2 and 3-4 on the input jumper.

It looks like your soldering iron is not hot enough and/or you are taking too long to get the solder to...

Transistors? There are no transistors that I have ever seen! There is one small voltage regulator that also has 3 pins. Definitely post some pics before you connect it to the power.

Correct! I should have checked out these links first http://sound.westhost.com/project01.htm and http://sound.westhost.com/pots.htm

It did not quieten the amp enough.

Yes, you only need to have a switch between the relevant mute pins - I use an ordinary toggle switch.

Soldering the AM pins together disables the AM mode. On the newer boards there is also a...

Assembly instructions are here http://www.41hz.com/forums/content.php?40-AI-AMP__9-Basic You basically have a choice of an On/Off (called sleep mode in Amp 9 as it still draws a bit of current when...

And the bad news is... nothing has changed despite getting the FETs in correctly. VNN still drawing 580mA through 50ohm resistor. 17161717 If anyone can spot the problem I'd be VERY grateful! High...

Please someone tell me that I have got the labelling wrong! 17141715 Sadly I haven't. I'll just have to accept that I'm probably the first person to get the FETs the wrong way around. I did sort of...

Are these analagous to the ground reference resistors R218, R219, R118, R119 on the Truepath? I notice these are connected gate to source.

I'm interested if you think they are affordable. I value my hifi sound but not that much!

I run my own business and I know how hard it can be to give people bad news (which is inevitable) - it's much easier to ignore it but customers REALLY APPRECIATE being kept in the loop and almost all...

So your suggestion is to remove the whole lot? I'm hoping to avoid that!

I really cannot see where else to put the blame apart from the MOSFETs. Unfortunately everything that I've read requires the FET to be unconnected. Rather than take everything out I'd prefer to nail...

BBM is set for 80nS i.e. 3-5 and 2-4. I have seen elsewhere that one way of finding a short is to allow it to get hot but this makes me nervous.

I know the feeling well - I literally burnt a Truepath and resurrected it again!

Check out http://www.41hz.com/forums/content.php?424-Amplifier-Protection for protection circuits. Also, pin 7 on...

OK, here's the admission - I did start up the test with the TA3020 installed but not powered up - don't ask how! Then got it right but V5 current seems a little high at 60mA but the VN10 current does...

A successful build of the Truepath is very satisfying but it is a distant second to resurrecting a fried Truepath! Yes, I mean fried in the literal sense. My first TP was destroyed by a moment of...