Tubes: 5687 / 7119 / E182CC How to Test Them?

Plug them into a circuit designed for them and listen. Vintage tube testers like yours usually are not accurate for testing high transconductance tubes like those, because they don’t produce sufficient plate current. Furthermore some don’t even provide a 9 pin socket wired correctly for them.

Look for a "Supplement Chart" for your model.

I could not find a free download (just broken links), but perhaps you will do better.

DeKay

E, I guess you know this, but E182CC =7119, different designations for the same tube. I think Jackson testers were made by Hickok so may be able to measure transconductance. For these tubes, transconductance is key to assessing their condition. To measure it meaningfully you need to supply relatively high plate (or anode) current. Which is a problem for most vintage testers.

thank you all for trying,

I have the original, supplement, substitution and European equivalent booklets; the Jackson original is a roll. My friend is a good researcher, he would have found any supplements for it.

nothing lists any of the substitutes that have popped up.

This just came up, says 7044 is an equivalent also.

https://www.ebay.com/itm/306704461123?mkrid=711-175623-139228-7&mkscid=102&adsetid=9e759d84-03f7-4f9f-b253-735e8ca03382&keyword=nonbrand&norover=1&displaytype=simple

/////////////////////////////////////

VIVATUBES.com says there are MANY equivalents

Compatible equivalents & substitutes: 5687, 5687WA, 5687WB, 5687WC, 6900, 7119, 7044, E182CC, CV2578.

/////////////////////////////////////

audioasylum.com; tubes asylum comments

Re: 5687 substitute recommendations

212.42.175.73

• Posted by Peter Qvortrup on June 14, 2005 at 06:58:44

  In Reply to: 5687 substitute recommendations posted by Srajan Ebaen (R) on June 12, 2005 at 15:21:12:

   

Dear Srajan,

The 5687 was designed in 1948/49 by Tungsol (I have 4 of the original factory test samples with dates!), the very early versions are by far the best sounding but extremely hard to find in good working order, otherwise the equivalents are,

7044, too bright and forward for my liking, although good in other applications, as driver or second stage line stage in transformer coupled circuits for example.

E182CC, best versions by Philips in Holland and Telefunken (off course), the Mullard UK was normally the US-made 7119 rebranded. The French RTF is a Philips tooled version, but sounds slightly less pure. The E182CC is my favourite sounding equivalent.

7119, the Amperex is the same as the E182CC Philips Holland above and sometimes cheaper as a result.

6900, I know this is a popular tube with many, but I have to say I find it quite poor sounding, heavy and bright at the same time.

All brands of 5687, my favourites are the Tungsol and Raytheon, but the five star GE and Japanese Toshiba is not bad either, generally the 5687 is slight dark in character, exemplified by the Philips/ECG version which is very common.

Hope this is of use.

Sincerely,
Peter Qvortrup

Some of your info is wrong. 5687 is different from 7119, so not all of your suppositions can be correct. I will check it out when I roll out of bed.