Comments on: Sank Comes Thru Again https://www.preservationsound.com/sank-comes-thru-again/ information and ideas about audio history Sat, 20 Oct 2012 01:38:54 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: Bafflegab https://www.preservationsound.com/sank-comes-thru-again/#comment-32068 Sat, 20 Oct 2012 01:38:54 +0000 http://www.preservationsound.com/?p=5585#comment-32068 Transformers (small signal ones) are made out of fine wire insulated, in the case of old ones, with organic materials that do not necessarily hold up and worse will corrode the wire itself. I always suspect them and will phase out any old transformer on a pro forma basis.

Some small signal transformers can be damaged by very small DC currents so it is important to use an ohmmeter of known current capacity, for measuring resistance. Low level, low current AC is always safe, you should have a good test sinewave generator. Phase is instantly apparent if you use a scope properly.

People who deride “scope jockeys” are a pet peeve of mine. I can usually judge a tech very well on how well he can use a scope.

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