Variants Description Stock Price Quantity
RT871 single (1 selected tube) on_Stock € 18,50
RT872 Pair (2 matched tubes) on_Stock € 37,00
RT874 Quartet (4 matched tubes) on_Stock € 74,00
RT876 Sextet (6 matched tubes) Currently_out_of_stock_Will_be € 111,00
RT878 Octet (8 matched tubes) Currently_out_of_stock_Will_be € 148,00


No Compromise!
The all new TAD-EL84STR brings together the best of both - the famous EL84-Cz and the EL84M. We opted for the thickest glass possible and the heaviest construction available, just like the Russian EL84M, and combined these features with the sonically most promising cathode plate options, in order to meet and exceed the tonal quality of the EL84-Cz. Finally, we added the gold grid wire in order to improve overall reliability. The sound can be described as very harmonic in the middle and treble frequencies, without adding too much power to the bass. The result is the best EL84 in current production.
Very good in Epiphone Valve Junior
d= 22,5mm

Due to its diameter of 22.5mm, the TAD EL84-STR does not fit into older Marshall DSL401 and UK made VOX AC15 TBX amplifiers. The only tube which fits these amps is the EL84-EI. (ordering number: NN471)

Q: When does a power tube become a Premium Selected power tube?
A: All power tubes labeled Premium Selected have passed the following tests:
- Plate Current (PC) and Amplification (TC)
- Low Noise Test
- Microphonic Test
- Sonic Tests
- Shock Tests
- Listening Tests
- Shorts & Leakage Tests

Premium RT-Matching of Power Tubes
Our Premium Matching is an exact matching of power tubes with identical Plate Current (PC) and Transconductance (TC).

TAD Premium Selected tubes are guaranteed for a period of 6 months (according to terms of warranties) for the quality criteria mentioned above.
Show 1 to 5 (in total 5products)

František (5/5)

I put them into my Pro JR with greenback speaker.
Really nice warm and articulate clean sound...It makes little "twin" from Pro JR....

David (4/5)

They're great all rounders!

Eric Beucler (5/5)

I really like their punch and their bass response


Not sounding as you expect from an EL84 valve. Enhanced bottom end and I don't like the way as it breaks up. Not creamy and silky. Some kind of "hotrodded" EL84. At least, they last.

Jaime Collier (5/5)

Really good el 84 for metal and modern rock sounds it has a full range with good bass response sounds pretty much unlike most el84 types out there i have jj; mullard; amperex and all sorts of nos types to compare it to and I say this tube is a winner for different sounding good tone than what you would expect from an el84
Show 1 to 5 (in total 5products)

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