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About dave

  • Rank
    incurable tinkerer
  • Birthday 23/11/1969

Personal Info

  • Location
  • Real Name

Wigwam Info

  • Turn Table
    Pioneer PL L1000
  • Tone Arm & Cartridge
    Shure M97xe
  • SUT / Phono Stage
    834p tweeked
  • Digital Source 1
    eternal cd player
  • Digital Source 2
    Teknica tv tuner
  • Pre-Amp
    tubed dynaco PAT4
  • Power Amp/s
    diy Fast Class A
  • My Speakers
    Wharfedale Teasdale
  • Trade Status
    I am not in the Hi-Fi trade

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  1. When I was 7 I developed a fascination for the family Roberts radio, and would spend hours tuning into different stations, pretending it was a car radio. (Not biological) Uncle Brian who worked at STC at the time gave my first radio, horrible 6 transistor thing as well as many other now old school computer parts for me to destroy. Then I got given a little valve Blaupunkt radio. I remember the sunny Sunday morning I worked out how to connect some wires into the back to make FM work, and how beautiful it sounded. It was probably about this time on one of my family visits to great uncle Edward, he had 2 radiators and a speaker in between at one end of his living room, he explained the speaker was actually an ultrasonic burglar alarm, and the radiators were speaker, and proceeded to lift the lid of the adjacent side board and put a record onto the classic Garrard 301, SME 2009, Quad 22 II FM2. I remember the sound clearly, as very detailed and transparent, but a bit loudness button, and not very loud. My parents* were quite accommodating, and my room slowly filed up with radiograms, radios, record players and tape recorders (around 40 pieces in total at one point, annoyingly no photos), this was early 80’s when people were practically giving the stuff away. The best was a lovely Rigonda mono radiogram, which sounded so lovely, I now have the stereo version waiting to be fixed up… Retrospectively, growing up my foundations were in single ended valve sound. By the time I was 16 my attic room had slowly emptied and I had acquired a B&O Beomaster 900M, and some homemade charity shop Wharfedale Super 8/RS/DD (I think, or could have been 10s) in some big reflex boxes, these sounded pretty nice and soon followed a Garrard deck, given to me by uncle Brian, the normal arm version of the zero 100. I remember hearing the first radio demonstration of CD on that setup. I never had much money so old and broken things were much easier to come by, and this really propelled me into my life in electronics. I only really wanted to study electronics so I could fix free broken things…, no thought of getting jobs or anything like that. This is a highly abridged version of my early influences. I wanted to understand why things sound like they do, and to make my own as I could not afford to buy. Later, for me a source of much frustration was the gritty grainy “electronic” sound produces by most of my lovely transistorised 80’s 90’s hi fi boxes. I like to think I now have some understanding of this and how to design around it to get a sound that I find satisfying. * I still haven’t quite forgiven my dad for selling for £100 great Uncle Lionel’s (inventor of the electric window apparently) Quad II based system which had the super rare Acoustical corner ribbon speakers, I never heard that one unfortunately. Young me probably would have wrecked them though.
  2. I was playing some of my grand dads old tapes and there was a recording of some organ music I think probably late 50's early 60's, during the performance a thunderstorm broke, it was very dramatic, the thunder rumbling and the lightning crackling through the speaker, some how added to and complemented the music performance. And the sound was surprisingly good from what I presume was an AM broadcast. Didn't feel as band limited as they do today.
  3. I'll vouch for that. just sold one of those and it still worked and sounded pretty good.
  4. Probably Tellurium Q, if you rummage a little you will find the tale of woe.
  5. That's a bit sad, do I take it you don't have an oscilloscope? was it just not making enough power?
  6. Hi, yes don't take this as rudeness, I have 5 kids and been to the dump twice to day, the first time turned away because my vehicle was to big, so had to bring it all back home and put it in the a bit smaller one .. i'll do it now...
  7. oooo I have one I was getting round to moving on. The play deck does not work (play) but the record deck plays, haven't tried recording. Pretty good condition, PM me.
  8. Maybe the spirit of the wam section in the classified. Bit far a way for me I am afraid.
  9. dave


    what does the needle look like when it is not playing a record?
  10. Probably the outputs of U114 and U115, but it is balanced. but that would involve soldering wires, and buffering it could be a good idea as well. Mr reddits suggestion is perfectly valid imo but I would take it from the outputs of U114 and U115, and obviously cutting those tracks would result in losing the tape loop output. This is what seems obvious, haven't analysed in great depth.
  11. If no one has mentioned already, a happy pair of ESL57s, they can't go loud.
  12. This is an interesting statement and one with which I "resonate"... (sorry I hate that but seems appropriate), could be a factor though, My mrs and her mother are very protective / engaged with / emotionally attached to their instruments. One of the reasons I have a lot of gear is some backups in case some thing breaks, that would be upsetting.
  13. dave

    Null Testing

    I think I am suggesting that i am looking at the difference in amplifiers performance whilst driving a wire, if there was no difference, the three spiky traces would all look the same. The first spiky waveform shows my equipment's inability to totally null, which is actually quite difficult. The other two spiky waveforms I have substituted one of the 2 RCA interconnects with a physically different cable, no point substituting with something very similar and expecting to see a difference. I don't trust anyone... although lots of interesting information available. I don't really want to hear a difference in cables, but I can under certain circumstances.
  14. dave

    Null Testing

    I haven't watched the video recently. I should have qualified that I was generalising about my scope when looking at visible distortions on periodic waveforms.
  15. dave

    Null Testing

    In my humble subjective opinion I think he is doing the test wrong. I suspect that any difference will be from the interaction between the cable and the amplifier driving the cable. My theory is that connecting 2 cables to 1 amplifier will show very little. So I tried a null test using one amplifier per cable, and I could see a difference on an oscilloscope when comparing different types of interconnect. IMO if you can see some thing on a scope it ought to be audible. You can see my post on this subject below on this link.