Tech article by Jeff Bober

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M Fowler
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Tech article by Jeff Bober

Post by M Fowler »

September 2017 Premier Guitar Magazine has a Jeff Bober designs:

1. Modding for Headphone in a Fender Super Reverb.
Sep17_PG_CLM_Ask-Amp-Man_Figure-1_WEB.jpg
2. Using the reverb send and return circuit as an effects loop rather then for reverb.

I could not upload the pages 122 & 124. https://www.premierguitar.com/authors/64-jeff-bober

Mark
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M Fowler
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Re: Tech article by Jeff Bober

Post by M Fowler »

So in the time since I posted this article I built a box with 8R 100w resistor and tried it out on my 1w amp and it certainly works.

I wired my volume control backwards so I do have to fix that.

Next to try this on a 50w head and see how it works and how warm it gets. Drill some top vent holes perhaps.

I could not find a 5uf/50v non-polarity cap so I used a 1uf/200v film cap.

Mark
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JazzGuitarGimp
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Re: Tech article by Jeff Bober

Post by JazzGuitarGimp »

Nifty!

Here's a way to use polarized caps:
- Take two polarized caps of twice the value needed (10uF in this case).
- Wire the (+) side of one cap to the (+) side of the other cap.
- Use the (-) terminals of the two caps as the non-polarized cap leads.
Lou Rossi Designs
Printed Circuit Design & Layout,
and Schematic Capture
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M Fowler
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Re: Tech article by Jeff Bober

Post by M Fowler »

Thanks for the tip Lou.
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