Where I got them.

2SA981 was bought from Mitsubishi --- for their amplifier, can not find its pair

2SD188 was obtained from Onkyo or Pioneer ... I do not recall a pair for these bunch. They are grouped by gain (##) interval and supplied as such. In general they range from 30~Up

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The rest came from Onkyo USA

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These items are NOT for re-Export. For use within the US only!