Tube testers do not test for these problems in the manner in which you think, except to the extent that a tube tester with sensitive leakage detection will find far more “noisy” tubes than a tube tester with only “fair” leakage sensitivity, to the extent that the noise is due to this problem.
eBay
20m 10m 5m 3m 1.5m 3 RCA Male To 3 RCA Plug Splitter 3RCA Adapter Cable Audio TV DVD Video Adapter AV Cable 3 RCA Cable Cord
Aliexpress UK
Getter: Top Slant Square. Plate(s): Long(17mm) Black Ladder. Manufacturer: RCA. The tubes need to get to you in one piece. But this the way of the world now. We are always looking to buy more tubes.
eBay
UGREEN RCA Cable HiFi Stereo 2RCA to 3.5mm Audio Cable AUX RCA Jack 3.5 Y Splitter for Amplifiers Audio Home Theater Cable RCA
Aliexpress UK
This is an RCA 12AU7. This type of tube is consistently rated by audiophile at the top of the heap. Most surveys put them in the top three of ALL TUBES! I have a B&K 747 tube tester. This is a mutual conductance tester.
eBay
20/100PCS RCA Panel Mount Connector RCA Female Socket Adapter RCA Audio Socket Plug Connector Bulkhead Nickel Plated
Aliexpress UK
This pair comes from the estate of an audiophile technician who meticulously curated a collection of over 1000 tested and excellent tubes! I will be listing the tubes individually and testing for good or better on a Hickok 799 or Sencore MU140. All writing and measurements on boxes were made by the previous owner and although I believe them to be accurate, some variation may occur. See the last photo for an idea of the span of the collection. This photo is for context only. This listing is only for the tubes represented in the title. Feel free to ask questions! I have been a recording engineer for 20+ years and will do my best to answer your inquiries :)
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2Pcs BNC to RCA Surveillance video BNC female to BNC male BNC male to RCA female Q9 male to rca female Q9 female to AV Adapter
Aliexpress UK
These tubes have been tested on a TV7 tube tester with all shorts tested. Part Number: 12AU7. Tested values.
eBay
2/4/8/16PCS RCA Male Plug To 2 RCA Female Socket Connectors 3Way Gold Plated RCA Connector HIFI Audio Terminals for Audio Video
Aliexpress UK
5963 ECC82 12AU7RCA. All parcels worldwide. All parcels with value ofGBP20 and over.
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Vention 2 RCA to 2 RCA Cable Male to Male Audio Cable for Home Theater DVD Amplifier TV 1m 2m 3m 5m Cable RCA Gold-Plated Cabo
Aliexpress UK
Reference tube is tested first then the tube listed for sale.
eBay
SUNKANDI RCA Male to female extension cable, copper housing RCA male to RCA female cable Stereo audio extension cable adapter
Aliexpress UK
1950's RCA Black Plate JRC 12AU7 Audio Tube. 1940, 40s, 1950, 50s, 1960, 60s, 1970, 70s. Tube(s) shown in pictures will be the exact tube(s) you will receive.
eBay
TODN 1 pair RCA audio cable 2 RCA to 2 RCA Interconnect Cable HIFI Stereo 4N OFC Male to Male For Amplifier DAC TV box
Aliexpress UK