I have designed and serviced electronics for 50 years, from vacuum tubes to solid state. For vacuum tube testing I use the Weston 981 and the highly modified Heath TT-1. Rp means Reject Point figure and New/Design figure is directly related to published transconductance (Gm in mhos) figures by RCA or others. Take Gm figures with a grain of salt BTW. Returns: I normally only sell electronic parts like vacuum tubes, so it usually is not worth the effort to return if something is amiss such as a tube not working when it arrives (probably ship related). But I will always make it right with replacement tubes or refund or both.
Item better than described excellent packaging super fast shipping highly recommended eBay seller fair price for item A+++++
o***n (554)- Feedback left by buyer.
Past 6 months
Verified purchase
Delivered in secured packaging. Works in my application. Not identical in appearance, not mentioned in ad, but does appear in the photo when viewed closely for details. As usual for Ebay purchases from the US, postage is a bit expensive and takes longer than a normal USPS delivery but considered in expectation.
)***n (1196)- Feedback left by buyer.
Past 6 months
Verified purchase
Exactly as described, well packaged, and delivered quickly. Good seller, would buy from again!
6***o (2895)- Feedback left by buyer.
Past 6 months
Verified purchase
Fast shipping,well packaged, as described, Good Value. Thank you.
c***s (854)- Feedback left by buyer.
Past 6 months
Verified purchase
Great seller, shipped quickly, well-packaged, items as described, outstanding!
l***a (315)- Feedback left by buyer.
Past year
Verified purchase
Received the push buttons in great shape as described. Packaging was very good, no damage noted to contents. The shipping was faster than I expected. They are great value for the price. I will definitely buy from this seller again in the future. Thanks again.