Kevin Wood

Wammer
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    103
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53 Excellent

About Kevin Wood

  • Rank
    Junior Wammer

Wigwam Info

  • Turn Table
    SL1210 Mk 2
  • Tone Arm & Cartridge
    Benz ACE L
  • SUT / Phono Stage
    Partridge / VSPS
  • Digital Source 1
    SBT
  • DAC
    Homebrew
  • Pre-Amp
    Homebrew
  • Power Amp/s
    Quad 405
  • My Speakers
    Eminent LFT-8b
  • Trade Status
    I am not in the Hi-Fi trade

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  1. Kevin Wood

    Homemade ultrasonic vinyl cleaner

    That's good information. Thanks chaps. Hadn't even looked, to be honest, but for £12.99 it clearly isn't worth fabricating anything.
  2. Kevin Wood

    Homemade ultrasonic vinyl cleaner

    I've been using mine for a week or so and, I have to say, it works very well indeed. I use a solution of RO water supplied by a friend of mine who makes his own, with a tiny dribble of dishwasher rinse aid and maybe 20-30 ml of isopropyl alcohol. I've been feeding it the worst candidates from my pile of charity shop vinyl that needs cleaning before even thinking about playing it. Provided the records aren't damaged, naturally, it never fails to return them to as-new levels of surface noise. It takes time, of course, but, as it doesn't require any supervision, I tend to put a record in and go and have a cuppa, or listen to a few tunes come back and it's done. The "disco antistat" I used before came with a handy drying rack which I use to dry records out of the Vortex and they dry quickly (in this weather, not surprising) and without any residue. Maybe a drying rack would be a good future CNC project?
  3. Kevin Wood

    DIY plumbing ...

    I fail to see why we need so many types of waste pipe that are all almost but not quite the same size. I have plenty of offcuts in the garage, but whenever I need to do a job invariably find that what I need is something different again.
  4. Kevin Wood

    Pi Id Jriver I2S W4S ?

    I think, if you have the DAC connected to the Pi via USB, you are probably at the optimal solution already. I2S was only designed to connect DAC chips at the board level so isn't really robust enough to interconnect devices. Some have introduced its use via an HDMI connector to get away from what is the perceived problem with SPDIF: that you have to recover the DAC's clock from the SPDIF signal. This is non standard use of the HDMI interface and I doubt it's possible to configure the raspberry Pi to do this directly without hardware changes. Raspberry Pi can deliver audio embedded into the HDMI video output, but this is not the same as I2S over HDMI. The Pi can also deliver I2S to some pins on its GPIO connector and this is what the PiDac and other devices use. The raspberry Pi's clock generator for its I2S output isn't that great because it uses a fractional-N process to synthesise the clock output, which causes some jitter. Whether that's audible is debatable. Outputting to the DAC asynchronously via USB allows the DAC to clock the data using its own internal clock which is probably the best solution. There probably isn't a hairs-breadth of difference between them so I wouldn't tear any more hair out, to be honest.
  5. Kevin Wood

    Going large with loudspeakers

    Yes, indeed. Shortly before meeting my wife I built a pair of floor standers from a Hi-Fi world design. Having made the cabinets, I couldn't resist the temptation to cut some crude holes in the front and bolt up the drivers just to "see what they sound like" before properly rebating in the driver surrounds and veneering the cabinets. aaand that's exactly how they stayed in the living room for the next 10 years or more, in their bare-MDF splendour. My wife always complained that they were there before her, so she couldn't really complain. In retrospect, this was probably a good grounding for things to come. I did get round to routing in the drivers and painting the cabinets (veneer was too much faff) - a year or so before the LFT8s came along.
  6. Kevin Wood

    Going large with loudspeakers

    I'm very happy with them. They have very little colouration, the bass response extends quite low but without exciting the room too much and they don't seem to suffer quite so badly with the small sweet spot that ESLs do - at least in the horizontal plane. The treble beams a little in the vertical plane, which you notice if you stand up while they are playing. They aren't that sensitive - 82db IIRC but they are not a difficult load. They probably wouldn't be everybody's cup of tea, but few speakers would. I probably ought to do a bake-off one day.
  7. Kevin Wood

    Going large with loudspeakers

    Eminent Technology LFT-8s. Had been hankering after a pair for a while when eventually a pair crossed paths with my wife. "Those are quite nice", she said . Duly interpreted as a green light. Have had the odd comment about the obelisks in the living room since, but otherwise appear to have got away with it.
  8. .. and thank you for bringing the kit along and keeping his memory alive. It was reminiscent of many late Saturday evenings at Scalford to be listening to his tapes again.
  9. Kevin Wood

    Shure Cartridge Owners Thread

    In the early '90s in my student days I picked up a Technics SL1800 at a junk shop for about £20, IIRC. Included was an M91ED. I wore out the stylus and replaced the cart with something else and it ended up in a drawer and forgotten.. until recently. Tried a cheap stylus and was pleasantly surprised so about a year ago I decided to splurge on a Jico SAS to see what it was capable of. Really very impressed with it. The tracking ability is second to none, as said, and I really like the way this cart sounds. If anything, my only criticism would be that the deep bass is a little lacking in comparison to some carts I've tried. Possibly an arm matching issue with my setup, which I haven't experimented with much other than mounting the cart and aligning it. Must get a test LP some time and have a play. I also have an M44-1.. yep, in a drawer somewhere. Came with a turntable purchase a while back.
  10. Kevin Wood

    Logburners Spiel.

    Having now read the "other thread" I would like to emphasise the bit in the above post where I recommended getting an expert in.
  11. Kevin Wood

    Logburners Spiel.

    It strikes me that, if you are getting through (what you consider to be) an excessive volume of wood but you are not getting sufficient heat, there are two possibilities: The stove is too small for the heating requirements of your property and you actually need to burn more fuel in a larger stove. The stove is not burning the wood efficiently. The latter possibility could arise due to excessive air leaking into the stove due to the damage you've reported or ineffective door seals, etc. Excess oxygen allows more fuel to burn than the stove can dissipate heat into the room, so the excess heat goes up the chimney in the form of a greater volume of hotter exhaust gases. This might also explain why the controls on the stove do not behave the way you expect them to. I concur that the wood looks to be chopped quite small for the size of the stove and this may at least make it seem that it's consuming more volume. Also remember that the quality of the wood is important. If it's poorly seasoned, or just the wrong type of wood, it will burn inefficiently too. Beyond that, though, it does sound to me like you need to get an expert in, who is able to assess the suitability of the stove for the property you're asking it to heat, and also check that the stove is performing efficiently. Have you tried heating the space with electric heaters for an evening to get an idea of what it needs to be comfortable? Bear in mind that the heat output rating of a stove is the maximum it can achieve when fully fuelled for the purposes of calculating the draught and ventilation requirements of the installation. To keep a 6kw stove outputting 6kw you'll need to be constantly adding wood, and, if the quality of wood is below perfect, the output will be less anyway.
  12. I thought the standard of the systems was much higher this year. I'm not sure if that was because the room acoustics were better on the whole, because volumes didn't need to be turned up to uncomfortable levels to drown out noise from neighbouring rooms or just that we're betting better at this! Far less time wasted trying to negotiate the maze that was the Scalford corridors meant more time listening. A bit of a shame to have lost the larger rooms and communal areas with the more ambitious systems but overall I think it was definitely a change for the better.
  13. Kevin Wood

    Power supply build

    .. in fact, the innards shown here don't look any different to me: http://www.soundhifi.com/sl1200/SL1200 PSU.htm
  14. Kevin Wood

    Power supply build

    That's what I was worried about. To be honest, what you have there will perform just as well as the regulators in the link you posted, in my view. Decent looking toroidal transformer, rectifier, reasonably generous reservoir cap and an IC regulator. I have no idea what Timestep are selling these days for a SL1210 but I can't see there being a significant improvement to be had.
  15. Kevin Wood

    Power supply build

    To be honest, it's hard to see how you can improve significantly upon what you have. Have they really "come a long way" or is this marketing speak? If you have a regulated power supply already, then the job is done and you'd be better of putting time and money into other aspects of your system - or records to play on it, in my opinion. You have to remember that this supply is just powering the motor, not anything handling audio signals. The more sensitive circuitry such as the reference oscillator and the speed control PLL within the direct drive motor runs from an additional lower voltage regulated supply in the SL1210 and, as long as the power supply isn't so poor that it is causing speed stability issues I don't believe changing it will make any difference. On the other hand, if you fancy the project anyway to get yourself into constructing audio equipment, it's probably not a bad place to start out as long as you're careful to get the mains side of things right.