JND 983A dispenser 120VAC conversion

Converting dispenser for use in the USA

The JND Advanced 983A glue dispenser makes for an excellent surface mount solder paste applicator. Here we will discuss rewiring the transformer for use in the USA at 120VAC/60Hz input voltage. This model comes with an EU style IEC plug that is designed to operate on 220VAC. It is a very simple conversion to 120VAC. Here is what it looks like in and out of the box.

The JND Advanced 983A dispenser.

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Dual Showman SR red knob footswitch

The amplifier

As a new owner of a Fender Dual Showman red knob reverb amplifier head, I set out to get a footswitch for my prize. The Fender “The Twin” of that period was almost exactly the same as the Dual Showman head (only MUCH heavier with its compliment of speakers.) After talking to about 20 sources including Fender and exhaustive searches on the Internet, I had gotten a handful of answers, but most were different; mostly debate about whether it called for a one or two switch foot-pedal or not. If you try looking it up, much of the data indicates the amp should have a single switch footswitch to just control the channels. There were not many made in this era that had reverb, but I happened to own one. So after getting nowhere asking around, I grabbed the schematics from a Fender “The Twin” amp and what I found did not surprise me in the least.

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