eBay

Gain (Expected Value= 19 mu)	20.7 mu	18.5 mu
Transconductance	1881 gm	1573 gm
Noise	-86.7 db	-86.8 db

Tested on a Maxi-Preamp II for Gain (Mu), Transconductance (Gm), and Noise (dB)., the tubes shown in the photos are the exact same tubes that you will receive. All tests are continuously sampled, averaged and then updated every 250 milliseconds for the most accurate measurement. Warranties: Sold as is with no warranty, please view all the photographs provided on the listing. Returns will NOT be accepted for reasons such as: ordered the wrong item, changed mind, not what I thought it was, wrong color ordered, wrong item ordered or tube readings don't match my tester. Any exceptions are on a case by case basis...

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If you are purchasing multiple items, simply wait until you are done shopping, and request a total from the seller,
we will then send you an invoice with a combined shipping rate.
All purchases are normally shipped within 1 business day.
Tracking numbers are usually sent to your email address as soon as the shipping labels are printed.