Check the listing for details. Handwired "Hornby-Skewes" Type Booster - Ritchie Blackmore Mods. Condition: New. Listed at 175.00 USD. ** Custom-built handwired treble booster made to order. After extensive research, this is my take on Blackmore's modified booster in use from '69 to '73. It features the necessary circuit mods to deliver Blackmore's sound from those years, as well as a boost level knob to control the amount of the effect. By popular demand it's now true bypass and it comes standard with a footswitch and a 9V AC adapter jack. Built with high quality modern components with the same electrical characteristics of the vintage unit but less noisy and more affordable. For actual examples of how the booster sounds and special discounts, please check my YouTube channel. YouTube.com/mgalbu ** Artwork, enclosure and knob type can vary from build to build. For the AIWA TP-1011 preamp tone (from '73 to now), or for a handwired 100W version of his modified Marshall Major, please check my other listings here on eBay. Thanks for your interest and don't hesitate to contact me with any questions.