Recent content by ozaudios
  1. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

    I wish I had a wiring diagram...... I might have to make my own.   So I got a DMM, tested the resistors that I installed and they all read 330 or 329 Ohms. I tested them from the opposite side of the board and got the same reading. I could see nothing wrong, so I put it all back together and...
  2. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

    OK, thanks for the advice. I have looked at the fuses, they look OK but I need to test them (I have seen fuses that look good but test as dead).    There was a very strong electrical burning smell! Sudden and very strong. So I expect to see a burnt component. My nose tells me that one of the...
  3. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

    Thanks, can you or anyone else point me to some designs? I do not know where to look, who to trust, or which designs are good or bad. I would really like to build my own amp, but where do I start, where do I get a design/circuit diagram from?
  4. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

    I agree that this major failure can only be blamed on me, asI am not qualified to work on this amp. BUT, the modifications done before were done at the factory, with factory approved parts, and the resistor that burnt started to burn at 2 months old, before the amp was even burnt in. So the amp...
  5. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

    Email sent to David at Little Dot......NO REPLY.   I contacted a local repair shop that works on tube amplifiers, they NEED a circuit diagram to work on the amp.   Looks like it is time to buy a WOO AUDIO WA22, at least their warranty is actually worth something. 
  6. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

    Everything went well for a couple of hours, the amp sounded better than ever....... then a loud crackling sound.......... then the gauges went to max, and the sound stopped, and the room filled with the smell of burnt electronics (magic smoke) and now the amplifier is dead!   RIP LITTLE DOT MK...
  7. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

      I removed the 2 aluminium rings that usually surround the base of the driver tubes. This allows me to use my favourite driver tubes without using socket savers to get them to fit inside the aluminium rings. So the gold plated pins plug straight into the amplifier, which has to be better than...
  8. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

    OK, WIGGLE WIGGLE WIGGLE, OUT   The sound is better than ever!!!!   This is a worthwhile upgrade!!!   It sounds SO SWEET. Prefect balance is back, super detailed, warm and wonderful.
  9. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

    OK I was going blind, I found 2 more Phillips head screws (under the large capacitors) and now the circuit board is loose, able to move a few millimetres, but not enough to get it out. There seems to be a lot of wires attached to it and I am not sure how to get the board out.   Can anyone...
  10. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

    Hi,   I need some advice. Inow have the 8 x 330 Ohm resistors for the Little Dot MK VI+. I have removed the base plate, the volume knob and nut and washer, and removed 8 Philips Head screws from the circuit board. But the circuit board is not wanting to move. It seems to be still stuck down in...
  11. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

    Hi DefQon,   Thank-you for both your offer to assist and your advise. As for assisting me, I am a resident of Canberra so I am a couple of thousand kilometres from Queensland, so it is most likely that I will be doing the repair myself. But as for your advise, thanks so much, I am glad to hear...
  12. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

    My MK VI+ has a good fan and has never been run without the fan. The resistor that has burnt is not the result of the amplifier getting to hot, I believe it is because the resistors are cheap and nasty and 1 in every so many just fails and cooks itself. Nothing else is burnt, just one resistor...
  13. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

    So I just bought 8 new resistors (Kiwame 5W 330 ohm Resistors) on ebay, have to ship over from Italy. Do resistors have to be installed in a certain direction, or can they go any way around?   Thanks again G600, you have been a great help to me by just showing a photo and telling us all what...
  14. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

    Hi G600, thanks very much for the photo of the replaced resistors. I took a good look at mine and there is one burnt brown on the right side, and the sound is just missing some volume and some magic on the right side..... so now I know why and can try to fix it. My amplifier is less than one...
  15. ozaudios

    Little Dot MK VI / Little Dot MK VIII SE Owners Unite

    I was thinking that a point to point soldered amplifier would be fun to build, then I looked at one, and the word 'fun' does not apply to it.
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