Friday, November 25, 2011

Son of Judybox Mark II

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I completed the second Son of Judybox, a/k/a Vamp tonight and at this point it is an unqualified success and ready for prime time. If you...
Saturday, November 12, 2011

Fixing a Dead Standby Switch on a YCV40

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A Traynor YCV40 arrived recently with a failed standby switch and it presented an interesting problem. Seems the switch actually controls a ...
Thursday, October 13, 2011

Champion 600 modified schematic Mark II

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Here's the complete schematic for the low cost 5C1 retrofit using a donor Champion 600 and retaining the original equipment transformers...
Monday, October 10, 2011

Yes, You Can and the Champion 600

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Part of the Mark II Champion 600 to 5C1 modification program was intended to lower the price of the modifications substantially by reusing t...
Thursday, October 6, 2011

Second Son of Judybox Project Underway

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As part of the retro mod Son of Judybox project I acquired for a Franklin an allegedly defunct Champion 600 that arrived this afternoon from...
Wednesday, September 14, 2011

Tube Matcher and Magic Wand Update

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Ever since I built the Jack Price Tube Matcher I've been thinking a precision adjustable feature might be very handy to have when calibr...
Monday, August 22, 2011

Further Tales From The Tonal Fringe: The Ampeg That Nearly Wasn't

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A couple of weeks ago I had gotten an Ampeg jones and started trolling Craigslist for likely suspects. I found an ad that had just been post...