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I buy denatured alcohol by the gallon and I use it when cleaning the inside and outside of tube amps I repair. I will use lint free clothes/rags from the $1 store or shop towels and pop sicle sticks etc....

I have used Castrol Super Clean or Purple Engine Degreaser diluted a good bit from time to time too but you never know with old radio's how they will react to any cleaner because so many types of paint and lettering and surface finishes have been used over the years. If I am really worried about something cosmetic on the outside of a device I will use either window cleaner or white vinegar with a few drops of dish soap added to it. You can always go to ever increasing strength on anything as you see it not harm the surface but go too strong too quickly and you could ruin something.

Old chrome plated plastic is almost unpredictable with regard to how it will stand up to a cleaner. Age and heat does strange things to surface finishes!

<blockquote data-quote="Onelasttime" data-source="post: 554676" data-attributes="member: 21190">I buy denatured alcohol by the gallon and I use it when cleaning the inside and outside of tube amps I repair. I will use lint free clothes/rags from the $1 store or shop towels and pop sicle sticks etc....I have used Castrol Super Clean or Purple Engine Degreaser diluted a good bit from time to time too but you never know with old radio&#039;s how they will react to any cleaner because so many types of paint and lettering and surface finishes have been used over the years. If I am really worried about something cosmetic on the outside of a device I will use either window cleaner or white vinegar with a few drops of dish soap added to it. You can always go to ever increasing strength on anything as you see it not harm the surface but go too strong too quickly and you could ruin something. Old chrome plated plastic is almost unpredictable with regard to how it will stand up to a cleaner. Age and heat does strange things to surface finishes!</blockquote>

[QUOTE="Onelasttime, post: 554676, member: 21190"] I buy denatured alcohol by the gallon and I use it when cleaning the inside and outside of tube amps I repair. I will use lint free clothes/rags from the $1 store or shop towels and pop sicle sticks etc.... I have used Castrol Super Clean or Purple Engine Degreaser diluted a good bit from time to time too but you never know with old radio's how they will react to any cleaner because so many types of paint and lettering and surface finishes have been used over the years. If I am really worried about something cosmetic on the outside of a device I will use either window cleaner or white vinegar with a few drops of dish soap added to it. You can always go to ever increasing strength on anything as you see it not harm the surface but go too strong too quickly and you could ruin something. Old chrome plated plastic is almost unpredictable with regard to how it will stand up to a cleaner. Age and heat does strange things to surface finishes! [/QUOTE]

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