Life Beyond Earth The Intelligent Earthling's Guide To Life In the Universe Gerald Feinberg Robert Shapiro William Morrow And Company 1980 Fritz Reiner This lot of six RCA

This lot of six RCA 6GH8A tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box US-made 12K7GT tubes tested to spec on our Paul Hart-calibrated TV7/U

And though this tube tests two standard deviations from the mean

Nonetheless it worked fine in my MC-3

Plate current measured 34 milliamps with a transconductance of 4310 micromhos

Life Beyond Earth The Intelligent Earthling's Guide To Life In the Universe Gerald Feinberg Robert Shapiro William Morrow And Company 1980 Fritz Reiner This lot of six RCAThis softcover book is in excellent condition. The spine is in fine shape with no loose pages. 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