Welcome to my guestbook, where you can see what previous visitors think about this site and my projects and articles. Many thanks to everyone who has left messages - your feedback really is appreciated!

Guestbook entries from 2014 (11)

    • Totley Rover
    • UK
    • 24 June, 2014

    An excellent web site.
    Enjoyed reading through the PIC tutorial.
    I will go back to it once I've got my PIC dev board setup.
    Very much a "retro" electronics hobbyist.
    Started out in 1975 with Veroboard and Practical Electronics projects.
    Built a Nascom 2 which kicked off a long career in real time embedded software engineering.

    • Les Clarke
    • Worcestershire United Kingdom
    • 3 June, 2014

    I think your site is well designed and informative, As someone who really enjoys assembler it is good to see given the world seems obsessed with Arduino... Regards Les aka 22swg

    • Miko Zoltan
    • Hong Kong
    • 24 May, 2014

    Thanks for this excellently revised web site. It is people like you that make the Internet valuable and knowledge spread much faster!

    • choo
    • Kuala Lumpur Malaysi
    • 14 May, 2014

    Excellent write up on the Roger LS 5/9. Thumbs up. However, just to clarify, a properly set up LS 5/9 with good amplification can produce bass & clarity that is unmatched by speakers costing 5 to 6 times more and I have listen to a number of pretty expensive setup before (including some TAD, Focal Grand Utopia, Wilson etc). Best regards.

    • Philip Rutkowski
    • Crowthorne, UK
    • 4 May, 2014

    Hi Mark,

    Many Thanks for your inspirational coverage of the LS5/8's, this has lead me to perform my own project for a pair of cabinets without the AM8/16 amplifiers with great success, I have since exhibited my finished project at the Hi-Fi Wigwam Scalford show with a surprising wealth of good feedback, for this I am very grateful for the invaluable details on your website!

    I was thinking of making an OP-AMP version of the crossover, but it seems this was already done! I had no idea there was an AM8/21 in existence!

    I'll be checking back if you have any further info on the AM8/21... until then, keep up the good work ;-)

    Thanks Again!


    • Kelvin Naylor
    • Northampton and Qatar
    • 29 April, 2014

    What a tidy and comprehensive site.
    Superb work as well
    I will also be returning to digest more.
    Thank you so much

    • Larry Gold
    • West Texas, USA
    • 28 April, 2014

    I just stumbled upon your terrific website, precisely the "PIC" portion describing programming among other topics.

    It never seems to amaze me that the better tutorials and information regarding all facets of the PIC Micros come from other countries other than the USA. Our educators don't seem to put a great deal of emphasis on microcontrollers or electronics (until the college level.) By contrast, math begins in the early grades of schooling.

    I'm having difficulty at times grasping the programming aspect of PIC's which leads me to the following. Since each author of PIC tutorials writes in his or her manner and doesn't know my limited knowledge, I gain some additional info but I don't feel I have yet mastered it.

    Your information is quite detailed, but so easy to understand and offers so much more that I can't stop reading it. I thank you for myself and others who are fascinated by the PIC for sharing all this info free of charge.

    Larry Gold

    • Gennaro Piscopo
    • Sydney, Australia
    • 19 April, 2014

    Excellent website, I've used this site over many years and have only just returned prior to purchasing my second pair of Rogers speakers. I'm now the proud owner of the Studio Ones and LS6.
    Unfortunately the LS6 have a blown bass driver. Hopefully I'll be able to get them repaired. Your website has been enhanced and is not only well constructed but the premier reference site for the vintage Rogers brand.
    I commend you on your attention to detail.
    Should you require any photos, please let me know.

    • Chris Spreckley
    • Manchester, England
    • 8 April, 2014

    Great site as I am just learning PIC Assembler at the age of 74.

    • Helder Pinheiro
    • Stockholm, Sweden
    • 6 January, 2014

    I have just read about Your Gainclone Amplifier.

    I am thoroughly impressed by Your impeccable attention to detail, your knowledge and craftsmanship.

    I could not stop before reading the hole project, and I will come back to enjoy more.

    Thank you, from my heart!

    • Rafael Augusto
    • Brazil
    • 6 January, 2014

    Thank you so much for the amazing courses and instructions. You write in a very comfortable, detailed and yet easy to understand manner.
    Good luck in the next steps for the website!