I just got a Hammond 169J for a great deal.
http://hammondmfg.com/169.htm
It's a 750 VA EI isolation transformer with a 115V primary and 90-130V tapped secondary. I would like to simply put this transformer in a large enough vented aluminum case with two duplex outlets. The box will be big enough for a future Jon Risch filter setup. I want to switch between the 110 and 120 taps as I have some vintage guitar amps which were designed when 110 was the standard, and the whole thing will also be used for safety when I work on any operating gear.
Nothing too complex for now, just IEC power socket, fuse or circuit breaker and two duplex outlets. There just a few details I need to work out.
How needed is a soft start here?
The switching arrangement I would like to use is a 15A DPDT center-off toggle switch. One pole switches the active conductor on the primary in and out, and the other pole selects the secondary tap. In this way I combine the power and voltage selector switches. For any reason should I not use the same switch to simultaneously control primary and secondary of the transformer?
Should the plugs I use be GFCIs?
Thanks
http://hammondmfg.com/169.htm
It's a 750 VA EI isolation transformer with a 115V primary and 90-130V tapped secondary. I would like to simply put this transformer in a large enough vented aluminum case with two duplex outlets. The box will be big enough for a future Jon Risch filter setup. I want to switch between the 110 and 120 taps as I have some vintage guitar amps which were designed when 110 was the standard, and the whole thing will also be used for safety when I work on any operating gear.
Nothing too complex for now, just IEC power socket, fuse or circuit breaker and two duplex outlets. There just a few details I need to work out.
How needed is a soft start here?
The switching arrangement I would like to use is a 15A DPDT center-off toggle switch. One pole switches the active conductor on the primary in and out, and the other pole selects the secondary tap. In this way I combine the power and voltage selector switches. For any reason should I not use the same switch to simultaneously control primary and secondary of the transformer?
Should the plugs I use be GFCIs?
Thanks
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