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EF80/EF184 Headphone Amplifier - epizy.com
http://g4oep.epizy.com/efamp/efamp.htm
Some might regard this as an attractive glow-bug characteristic, but in normal use it cannot be heard at all. The EF184 is quieter than the EF80 in this respect. The amplifier runs from a regulated 12v, 1A 'wall-wart' supply, and includes a dc-dc …
EF184 in triode for phono stage input? | diyAudio
https://www.diyaudio.com/community/threads/ef184-in-triode-for-phono-stage-input.379281/
The attached Philips datasheet for the EF184 states that Cg1g2 = 2.8 pF. So I think that in normal triode mode Cag will be a bit higher than this 2.8 pF, and as a triode with g2 as the plate (and the real plate grounded) Cag will be 2.8 pF. Attachments. 5879 + EF184 triode (Pete Millett).pdf. 310 KB · Views: 108.
EF184 in triode for phono stage input? | Page 2 | diyAudio
https://www.diyaudio.com/community/threads/ef184-in-triode-for-phono-stage-input.379281/page-2
If a EF184-triode has Cga of 2.8pF and Cgk of 9pF, then 9pF + 2.8pF(46) = 137.8pF Only a slight improvement, not enough to prompt a re-design. On the other hand, 6GK5 is a frame-grid, RF triode with mu = 78 and Cga = 0.52pF, so Cin would be: 5.7pF + 1.2pF(61) = 78.9pF THAT is worth a re-design, for use with contemporary MM cartridges.
6EJ7 EF184 Amperex/RCA Audio Receiver Guitar …
https://www.ebay.com/itm/133969453179
6EJ7 EF184 NOS GE radio vintage amplifier audio vacuum tubes 2 valves tested. $19.99 + $4.00 shipping + $4.00 shipping + $4.00 shipping. Top Rated Plus Top Rated Plus Top Rated Plus Top Rated Plus. Seller 100% positive Seller 100% positive Seller 100% positive. RCA 6SN7GTB Audio Receiver Guitar Vacuum Tubes Tested Pair 100%.
Thoughts on the EF184? - Tube amp Information, Guitar amp ...
https://el34world.com/Forum/index.php?topic=9551.0
The EF184 has a Gm of 15mA/v (!) but at a plate current of 10mA. That's a lot of current to pass, and fortunately the data sheet showed how Gm drops off at lower current. It's fine until you get down around typical guitar amp ranges, then Gm is …
Andrew liked the sound of nostalgia
https://www.electronicsweekly.com/blogs/gadget-master/audio-amplifiers/andrew-liked-the-sound-of-nost-2008-03/
The EF184 is a very low-noise device (it has a much lower equivalent noise resistance than most triodes), with a high and unusually linear transconductance; it is very suitable as an audiophile tube. The design is capable of driving relatively insensitive headphones with a voltage of 700mV rms and a total harmonic distortion of 0.03% or better.
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