Tom,

Thanks for the input.

Geez man, 4 Y.O. and you remember that? You were quite a precocious audiophile. You must have bionic memory like the 6 million dollar man...

Got these old test records from my deceased father's estate and they're surprisingly in good condition for their age.

Mid to late 60's I remember him playing classical music records, hence part of my guess of sixties for those two test records. Also based on "judgement call" in view of frequency responses given for these.

During 60's my father had initially an E-V (or maybe Heathkit?) small silver receiver, replaced by a big Clairtone wood case model, E-V 12" coax speakers and the AR turntable, possibly with an Empire cartridge.

That's about as far as my audio gear/music memory wants to go, but I'm not the six million dollar man!

Out to snow removal!!! Regards,

Richard