Vox solid state cap question

AC4, AC10, AC10 Twin, AC10 Reverb Twin, AC15, AC15 Twin, AC30 Twin, AC30 Super Twin, Top-Boost, Non-Top-Boost, AC50, AC100, 710, 760, 7120

Vox solid state cap question

Postby DougH on Thu Oct 05, 2017 4:47 pm

This may be a silly question. In looking at the 7 series and the conqueror preamps, I see film capacitors rated at 160 volts. I don't think they need to be rated this high so I ask. Are these caps 160v simply because that is what was available at the time?
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Re: Vox solid state cap question

Postby R.G. on Thu Oct 05, 2017 9:58 pm

Yes. The difficulty in making film caps in low voltages - and hence, smaller - is the difficulty in making the insulating film thin enough without actually having holes in it. It's only with modern manufacturing and high purity plastics that we can make insulating films thin enough to get the voltage down to lower voltages, and so make the caps smaller. They just could not get caps at low enough voltage/thinness.
Best regards,

R.G.
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Re: Vox solid state cap question

Postby DougH on Thu Oct 05, 2017 10:17 pm

Thanks R.G.
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