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Old 09-12-2018, 10:34 AM
dieseljeep dieseljeep is offline
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Quote:
Originally Posted by Robert Grant View Post
I notice that the fourth photo shows a tag on the chassis: ".75 AMP 250V".

This would be a rarity indeed - a 250V power supply when the only country with a color TV infrastructure was entirely 120V.

Was this built as a demonstration or test set to be used abroad?
First of all: The set draws a lot a lot more primary current than .75 amp. At the time all low current fuses were rated at 250volts.
Fuses were designed for fault current as well as overcurrent protection. The line fuse, if used is somewhere around 8 amp, 125 volts, 125% of run current.
Fuses have changed drastically over the last 20 or 30 years regarding fault current. All fuses 10 amp and higher in the 3AG size are either porcelain tube or sand filled.
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