Author Topic: EL-34 types. (Read 2710 times)

Ctlim · « **on:** Mar 10, 2008 at 05:35 PM »

tube guru's, can you recommend a quad of EL34's as back up for my Sveltlana's?

would like sana to purchase a quad of the same brand, but thinking of buying a different kind... i auditioned Electro Harmonix, but i wasnt satisfied, how about JJ TESLA? how do they compare to Svet's? anyone with actual experience?

alexg · « **Reply #1 on:** Mar 10, 2008 at 11:39 PM »

Quote from: ctlim on Mar 10, 2008 at 05:35 PM

tube guru's, can you recommend a quad of EL34's as back up for my Sveltlana's?

would like sana to purchase a quad of the same brand, but thinking of buying a different kind... i auditioned Electro Harmonix, but i wasnt satisfied, how about JJ TESLA? how do they compare to Svet's? anyone with actual experience?

On my SE amp, I prefer the sound of the JJ over the Svetlana's, and I hate the EH.

I find the sound of the Siemens and the Mullards (if you can find them and afford to buy a quad), very, very satisfying and excellent (the best EL34s I have tried so far).

HTH.

JoeyGS · « **Reply #2 on:** Mar 11, 2008 at 10:10 AM »

Internet reviews for your reference:

http://thetubestore.com/el34review.html

https://www.watfordvalves.com/cgi-bin/documents/testreport_46.pdf

Hope this helps.

Regards,
JoeyGS

qguy · « **Reply #3 on:** Mar 11, 2008 at 01:25 PM »

JJ E34L some members swear by them to be better than the EL34
EH 6CA7 is another option, bigger tube
KT77 .. have not tried this, but this is also compatible with El34 types...

devo · « **Reply #4 on:** Mar 11, 2008 at 04:26 PM »

Quote from: ctlim on Mar 10, 2008 at 05:35 PM

tube guru's, can you recommend a quad of EL34's as back up for my Sveltlana's?

would like sana to purchase a quad of the same brand, but thinking of buying a different kind... i auditioned Electro Harmonix, but i wasnt satisfied, how about JJ TESLA? how do they compare to Svet's? anyone with actual experience?

try the JJ KT77 (direct replacement) ..... and for sure your Svets (if they are non-winged C) will become your back-up. I previously had Mullard (new production) on my set up and after trying the KT77 .... the Mullards are now up for grabs at WS.

Maganda rin feedback ng Winged C Svets sa reviews though I haven't heard them personally.

Tried also the EH6CA7...... medyo "grainy" for my taste. Maganda lang tingnan dahil mas malaki siya sa normal EL34. Eventually sold them also.

I believe there are amps with JJ's at Hyperaudio ... you can pay them a visit. Per my brod, better than the non-winged C Svets but tinalo ng JJ KT77 when tried on his Jolida amp.

By the way .... all of the above are based on my personal subjective opinions. Bawal kumontra

(Joke!!!)

Ctlim · « **Reply #5 on:** Mar 11, 2008 at 08:00 PM »

noted on the comments. have decided to try getting in order of preference after I make some more consultations.

siemens or JJ. about the KT77... will get more info... what KT77 are you using?

alexg · « **Reply #6 on:** Mar 11, 2008 at 09:54 PM »

Quote from: devo on Mar 11, 2008 at 04:26 PM

try the JJ KT77 (direct replacement) ..... and for sure your Svets (if they are non-winged C) will become your back-up. I previously had Mullard (new production) on my set up and after trying the KT77 .... the Mullards are now up for grabs at WS.

Maganda rin feedback ng Winged C Svets sa reviews though I haven't heard them personally.

Tried also the EH6CA7...... medyo "grainy" for my taste. Maganda lang tingnan dahil mas malaki siya sa normal EL34. Eventually sold them also.

I believe there are amps with JJ's at Hyperaudio ... you can pay them a visit. Per my brod, better than the non-winged C Svets but tinalo ng JJ KT77 when tried on his Jolida amp.

By the way .... all of the above are based on my personal subjective opinions. Bawal kumontra (Joke!!!)

Where did you purchase your JJ KT77?

Thanks.

Ctlim · « **Reply #7 on:** Mar 11, 2008 at 10:57 PM »

hmm.. bro, can you point me towards JJ KT77's? would like to check it out... pati na rin price. ty.

nizmo · « **Reply #8 on:** Mar 12, 2008 at 09:19 AM »

mga sir
in case you did find the way to jj kt77, i'm so much interested with it, so please let me know.
i've already tried several brands of el34 like sovtek wxt, EH el34 and 6ca7 but not at peace yet.
thanks. Mabuhay po kayo.

devo · « **Reply #9 on:** Mar 12, 2008 at 05:38 PM »

Guys,

Unfortunately, there is no local source for the JJ KT77 (as far as I know), I got mine at Martin Electronics (Burlington Square Singapore) for SGD35 each last Nov.

If you happen to be near Sucat Pque, you can hear them mounted on my AMX monos. There is a thread at WS comparing these with the Mullard (new production), and I can concur, it beats the Mullards by a long shot.

nizmo · « **Reply #10 on:** Mar 13, 2008 at 12:21 AM »

what do you think fellows... if everyone is interested in jjkt77, as much as i do, let's do a group order and share the shipping charges... makakatipid na at mag eenjoy pa.

suggestion lang po...

Ctlim · « **Reply #11 on:** Mar 13, 2008 at 10:49 AM »

Just had my friend buy me a quad. will try it out once it arrives this weekend.

devo · « **Reply #12 on:** Mar 14, 2008 at 01:30 PM »

Quote from: ctlim on Mar 13, 2008 at 10:49 AM

Just had my friend buy me a quad. will try it out once it arrives this weekend.

Please feed us back with your comments after at least 12 hours of use.

Ctlim · « **Reply #13 on:** Mar 14, 2008 at 02:13 PM »

gimme a couple of weeks, will have to ask edwin for the timeframe.

AMXTube · « **Reply #14 on:** Mar 17, 2008 at 06:20 PM »

Quote from: ctlim on Mar 14, 2008 at 02:13 PM

gimme a couple of weeks, will have to ask edwin for the timeframe.

We have JJ El34 and jj KT77 on the way very soon. AMX

alexg · « **Reply #15 on:** Mar 17, 2008 at 06:33 PM »

Quote from: AMXTube on Mar 17, 2008 at 06:20 PM

We have JJ El34 and jj KT77 on the way very soon. AMX

How much for a pair of JJ KT77?

Thanks.

nizmo · « **Reply #16 on:** Mar 18, 2008 at 07:16 AM »

amx

how much would be the jjkt77? in case they are already available pa-reserve po ng quad match.
i was in your store yesterday (Kinetic- Pioneer right?) i was about to buy the Mullard but it so happenned
that i was short by P5oo.00 for its, though, discounted price.

Congrats for having good costumer service. cheers.

AMXTube · « **Reply #17 on:** Apr 05, 2008 at 07:45 AM »

Quote from: nizmo on Mar 18, 2008 at 07:16 AM

amx

how much would be the jjkt77? in case they are already available pa-reserve po ng quad match.
i was in your store yesterday (Kinetic- Pioneer right?) i was about to buy the Mullard but it so happenned
that i was short by P5oo.00 for its, though, discounted price.

Congrats for having good costumer service. cheers.

The JJ KT77 and JJ EL34 are now available at Kinetic Audio, 2nd Level, ROBINSONS forum, EDSA corner Pioneer Mandaluyong. Call 7103432 for prices, coming soon JJ 12ax7, 12AU7, 12AT7, 6922/ECC88

AMXTube · « **Reply #18 on:** Apr 09, 2008 at 09:37 PM »

Got a PM asking when the JJ 6922 will be arriving. Just to let you know it is in transit. Will post here when it arrives.

ganicru · « **Reply #19 on:** Apr 11, 2008 at 04:56 PM »

Hi Guys, got to dispose some spare slightly used tubes now on display at Fibac Audio Video Shop Makati Cinema Square. Tel#8565695 look for Jun

Electro Harmonix EL34 EH Fat Bottle quad matched.
JJ KT 77 quad matched.

Thanks,
09209609550

alexg · « **Reply #20 on:** Apr 12, 2008 at 12:12 AM »

Quote from: ganicru on Apr 11, 2008 at 04:56 PM

Hi Guys, got to dispose some spare slightly used tubes now on display at Fibac Audio Video Shop Makati Cinema Square. Tel#8565695 look for Jun

Electro Harmonix EL34 EH Fat Bottle quad matched.
JJ KT 77 quad matched.

Thanks,
09209609550

How much do you want for those tubes?

You can post the price here or PM me.

Thanks.

Ctlim · « **Reply #21 on:** Apr 19, 2008 at 09:00 PM »

Still cant properly give feedback on the JJ KT77 as I changed my speakers recently and I'm not yet that familiar with it. But off hand, the JJ KT77 improved the gain on my volume by about 10-15%.

AMXTube · « **Reply #22 on:** Apr 28, 2008 at 09:26 PM »

Quote from: ctlim on Apr 19, 2008 at 09:00 PM

Still cant properly give feedback on the JJ KT77 as I changed my speakers recently and I'm not yet that familiar with it. But off hand, the JJ KT77 improved the gain on my volume by about 10-15%.

It is common knowledge that a KT77 may be used as an EL34 substitute. But I did check the electrical parameters of the KT77 and its family of curves, it sure is different from the El34. I believed that to get the best of the KT77 you need to design the circuit parameters specifically for the KT77. That a KT77 will work in a EL34 schematic is true but never to its best intention. Bias points are different from EL34s and load lines are different too. Its a different tube with the same base diagram.

Ctlim · « **Reply #23 on:** May 01, 2008 at 10:23 PM »

^^^ thanks for the info, but so far so good. i'm getting better gain from the KT77. I used to listen at 11 oclock, now i'm satisfied at 9.

offhand the KT77 sounds somewhere in between an EL34 and a 6L6. So for my purposes, it is an awesome alternative or back-up to all EL34. Lately I've been listening to alot of unplugged music. But from time to time, when I'm on patricia barber... I put in a Siemens EL34.