Quote:
Originally Posted by Yamamaya42
I tend not to trust most capacitors, resistors, found on eBay anymore, and especially transistors 
just too many fake parts. |
I agree wrt ebay and transistors. I have been burnt a few times. However if the seller is in the US with what appears to be NOS vintage resistors and ceramic capacitors I have had no problems. When wanting to keep the original appearance I have patently searched for just the right part.
It must be just me. I even baulk at newer metal film resistors which do not match the older carbon composition resistors in older vintage equipment. For 1930's sets, I have a store of older dog-bone style resistors.
I used to restuff paper capacitor but do not bother anymore and certainly the gleam of an epoxy dipped capacitor does not look too out of place. I will use modern film capacitors of a higher breakdown voltage in order to ensure the component is of a physical size roughly equivalent or only slightly smaller than the original.I will always restuff electrolytics though.
Which reminds me, I have a question on capacitors used in 50's set vertical sweep circuits minus the blocking oscillator transformer. I have found that it appears the capacitors are critical in that proper capacitor characteristic choice is essential for maintaining good sweep linearity during warmup over a half hour or so. Has anyone else had this problem?