Search found 75 matches

by ed packard
Mon Apr 25, 2011 10:05 am
Forum: Electronics
Topic: Pickup info
Replies: 37
Views: 36853

Re: Pickup info

Georg; Sounds like an approach. I used a comparator on the analog signal to extract the peak voltage of the pickup signal to control the amplitude via the peak follower voltage…a bit of curve shaping involved to give flexibility to the amplitude control etc.. The DC control using the semiconductor p...
by ed packard
Sun Apr 24, 2011 8:37 pm
Forum: Electronics
Topic: Pickup info
Replies: 37
Views: 36853

Re: Pickup info

Back to the common winding and magnets pickup: Bent has it…after you wind it, you should immobilize the magnets and wires with respect to themselves and each other. Potting with wax is one way. Using a wire with insulation coated with a substance that can be bonded by a chemical is another. This kin...
by ed packard
Sun Apr 24, 2011 1:47 pm
Forum: Pedal Steel
Topic: "The Beast" - And Other Good Pertinent Stuff
Replies: 14
Views: 2262

Re: "The Beast" - And Other Good Pertinent Stuff

Richard…now who would question your “pertinence? As the BEAST made its way into the topic title, lets do the Who, when,where, why,what of the device. The BEAST is a PSG design using several uncommon components and approaches in its design. It has a 30” scale length, and a 32” string length. This is ...
by ed packard
Tue Apr 19, 2011 4:01 pm
Forum: Electronics
Topic: Pickup info
Replies: 37
Views: 36853

Re: Pickup info

Hello Richard & Bent! Richard…thanks for keeping an eye on the text…I did not know what my finger ..and mind (an assumption) were doing. I edited to try to fix it and add Xl XC clarification. Bent…the info for your #48 wire is: The OHMS per KFT (Thousand ft) for #48 gauge wire is approx 7576 ohms. T...
by ed packard
Tue Apr 19, 2011 1:33 pm
Forum: Electronics
Topic: Pickup info
Replies: 37
Views: 36853

Pickup info

Is this kind of "stuff" of interest? Greetings chaps…My first post will be in the PICKUPS section. Pickups have long been made with windings of wire around either the magnets, or around a return path in the magnetic circuit. The vibrating string causes a change in flux (think something invisible lik...