Winthrop's Boston A Portrait Of A Puritan Town 1630-1649 Darrett B. Rutman University Of North Carolina Press 1963 12Q7 Octal One is milspec

One is milspec

72 and 75 respectively

new in box RCA 12HG7 / 12GN7 / 12GN7A tubes tested to spec on our Paul Hart-calibrated TV7/U

it has no gross issues such as hum or microphonics and will work excellently in your audio device that calls for a 12AT7

Winthrop's Boston A Portrait Of A Puritan Town 1630-1649 Darrett B. Rutman University Of North Carolina Press 1963 12Q7 Octal One is milspecThis paperback book is in very good shape. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE PROTECTION COVERS ITEMS UP TO $250 IN VALUE. IF AN ITEM IS MARKED "DELIVERED," AND YOU HAVE NOT ACTUALLY RECEIVED IT, THE FIRST STEP IS FOR YOU TO CONSULT YOUR MAIL CARRIER TO GET THE EXACT COORDINATES OF THE DELIVERY AND ARRANGE FOR YOUR ITEM'S RETRIEVAL. IF IT APPEARS THE ITEM HAS ACTUALLY BEEN STOLEN, IT IS YOUR