JAN Philips ECG 5814A / 12AU7
Other JAN Military tubes12AU7 Tube Types
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Warranty Information and Return PolicyWarranty Period: 3 months
All our tubes are guaranteed for 3 months from the date of purchase. (Any exceptions will be noted on that tube's Warranty tab)
If you receive a tube that does not perform to the manufacturer's specifications, please do the following:
- contact us to get a return authorization
- return it via regular mail within 90 days from when we shipped it, and we will provide an exchange or refund of the full purchase price of the tube.
Returns not related to warranty or defect will be considered at our discretion, and are subject to a 15% restocking fee.
We can not accept returns that don't have an authorization, are past 3 month, or are returned improperly.
These guidelines may be updated without notice.
Ratings & Reviews
Pretty rugged, OK sonics.
by Analog Dog
I bought 5 of these back when they were $5.00 a pop, for the input of the linestage of my old QS full function preamp. For whatever reason, that preamp tends to be hard on the 12AU7 tube; even the manual states that if things start getting noisy, trying replacing that tube 1st. In this application, the sonics are OK. Tends to hold up better than stock 12AU7's but I still will have to replace this tube before I do all the others, in this preamp. You need something rugged, not microphonic in a 12AU7, this is your tube.
I agree with Anlog Dog. After 200 hours burning in the sound remained too hard. Like listening to a solid tate amp instead of a tube amp.
Solid tube with great sound
I use this tube in a DIY 4S Universal preamp. This preamp can use many of the different 12 volt nine pin tubes, such as 12AX7, 12BH7, 12AT7 etc. In my application, it is my second favourite after GE 12AU7 clear tops. It is a very clean sounding tube that doesn't color the sound, and it is very resistant to microphonics. I would describe it as being honest to the source material. The clear tops are great, but I suspect it is for what they add to the music that isn't actually there originally. So clean and not euphoric is how I would describe them. In a good way.
Nice little tube, running with the two JAN-Philips 12at7wc. Sweet together, nice team. Was running JJs. These guys are sweet music, JJs are my spares.
My McIntosh MC225 now sounds wonderful
by Bob W
When I acquired my McIntosh MC225, the tubes that came with it were near end of life. I wrote an email to thetubestore.com looking for recommendations for a new set of tubes for the MC225. I received an email back that recommended :
Preferred Series 7025/12AX7,
JAN Philips ECG 5814A/12AU7,
I ordered the tubes in the correct quantity. For the first 25-50 hours on the new tubes my MC225 sounded harsh. Then it got that sweet tube sound and I found out how incredibly wonderful a McIntosh MC225 sounds. I have recently ordered a spare set.