thisoldman Says:
Thursday, May 11, 2017 @3:17:48 PM

Have been following your posts on this "device" as it sounds interesting. I know this is probably somewhat subjective, due to one's hearing and the recording itself, but do you have sound samples to share?

yellowdog Says:
Thursday, May 11, 2017 @5:04:04 PM

No, but I've purchased a mic and have good intentions to do so. It's just a lower priority right now behind getting myself a business license, bank account, etc. In the meantime be sure to read the review in Banjo Newsletter" in their upcoming June issue, Thanks for your interest and comment. Frank Geiger

Hankon5 Says:
Wednesday, June 7, 2017 @11:42:41 AM

Do all the tone pieces come with the unit or are they additional?

Hank

yellowdog Says:
Wednesday, June 7, 2017 @12:29:09 PM

The tone amp, which costs $20 including postage, comes with a steel tone piece already installed, two pieces of extra tape, three pages of "Theory and Instructions", and a written one year unconditional satisfaction guarantee. A optional "Tone Piece Kit" is available for an additional $5 and consist of three extra tone pieces of steel, brass and maple, each pre-taped for easy replacement or stacking above the steel tone piece on the tone amp. (Stacking can increase volume.) It should be mentioned that the tone amp's performance has been recently improved by the addition with a new type of "wire whip amplifier" (patent pending) which has been added at no additional cost.

yellowdog Says:
Thursday, July 6, 2017 @9:49:28 AM

In the last few days I made two simple but very significant improvements to the tone amp which greatly increases volume and improves sound quality. The first change was to the clear tape which covers the cross. It isn't shown in this drawing but the cross on the tone amp is covered with wide, relatively heavy acrylic tape that had extended down to the bottom of the bottom leg of the cross. The change was to the location of the bottom edge of this tape. The bottom edge was moved downward to be tangent to the top of the top hole in the set of four connected holes in the center of the tone amp. The second change was to completely remove the single staple on the bottom right of the tone amp illustrated in the drawing as two short lines to represent its two staple points. If you purchased a tone amp that does not include these changes we will replace it at no charge with this improved design. The tape change almost doubled volume and the staple change improved clarity.

yellowdog Says:
Thursday, August 31, 2017 @3:16:47 PM

I just posted a sketch here and in my ad titled, "Three Plane Amplifier". The Movable Tone Amp's three audible sound generating parts are easily bent into three planes. This causes very impressive increased volume when the audible sound waves intersect in air coming from different directions. See the sketch of the bent tone amp here or in my ad.