The Humble EL34

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Mudshark
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Re: The Humble EL34

Post by Mudshark » Thu Jan 26, 2017 9:12 pm

This un seems nice..........
Fezz22-820x547.jpg
Fezz Audio.

Cressy Snr
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Re: The Humble EL34

Post by Cressy Snr » Sat Jan 28, 2017 8:53 am

Fezz Audio eh!

Didn't realise that Tommy Cooper had had so many strings to his bow. :wink:
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rowuk
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Re: The Humble EL34

Post by rowuk » Sun Jan 29, 2017 4:31 pm

The EL34 is not humble in my opinion. The problem is understanding how to interface it to the speaker. I really like simplicity of the Kitic design with this tube. It is like the big brother of the EL84. Transparent, great tone, stability of pitch and easy to get output transformers for.

That all being said, my experience is that differences in sound have more to do with the OT, with the loading of the output tube and the type of driver stage before it. When people report differences in sound, I really wonder if they know what has caused the difference?
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Mudshark
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Re: The Humble EL34

Post by Mudshark » Mon Jan 30, 2017 1:55 pm

Good post R.

I struggle to pick bones from it....... :lol:

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shane
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Re: The Humble EL34

Post by shane » Mon Jan 30, 2017 5:39 pm

Cressy Snr wrote:Fezz Audio eh!

Didn't realise that Tommy Cooper had had so many strings to his bow. :wink:
Heard a nice little story about Tommy Cooper the other day. Whilst on holiday in Cairo, he went into a shop and tried on a Fez. Immediately, the shop keeper said "just like that. Not like that; like that!" Cooper was astonished that his catch phrase was known to a Egyptian shop keeper, and asked him how he knew it. The shop keeper replied " I don't know what it means but every English tourist who comes in here puts on a Fez says that. You're the first one not to, so I thought I'd say it for you!"
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Mudshark
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Re: The Humble EL34

Post by Mudshark » Mon Jan 30, 2017 10:03 pm

Tommy was Magic........ :lol:

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Re: The Humble EL34

Post by Cressy Snr » Fri Feb 10, 2017 10:29 pm

Indeed (another one shifted off the top) :roll:
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Re: The Humble EL34

Post by Cressy Snr » Tue Mar 14, 2017 10:29 pm

Acquired a mached quad of Tung Sol reissue EL34B this afternoon.
Had specced them as "hot, late distortion" in the matching instructions for Hotrox.

My verdict on these is that they are the best EL34 I've heard. Lovely tubes, as good as vintage Mullards.
Rich, saturated tone, superb top end, free of glassiness and extended without being in your face.
Super bass tone. I love 'em.
Running 382V at 55mA, dissipating 21W at idle, they sound the biz.
Building and listening to that 300B OTL has enabled me to move the performance of my pentode monoblocks, up a few notches.
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Re: The Humble EL34

Post by IslandPink » Thu Mar 16, 2017 10:41 pm

Cool - so when you say 'reissue', when were these made approx. ?
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Re: The Humble EL34

Post by Cressy Snr » Fri Mar 17, 2017 8:16 am

IslandPink wrote:
Thu Mar 16, 2017 10:41 pm
Cool - so when you say 'reissue', when were these made approx. ?
Date code on the valves is 06-16 so last June.
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rowuk
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Re: The Humble EL34

Post by rowuk » Wed Jul 12, 2017 8:47 pm

After great success with the RH307 Super and the RH84 Mk2, the RH34 will be my next not so humble LF SEP channel

Image
More info at: http://rh-amps.blogspot.de/2013/05/rh-u ... ersal.html
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andrew Ivimey
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Re: The Humble EL34

Post by andrew Ivimey » Wed Jul 12, 2017 9:02 pm

'LF SEP chsnnel' ? What's that mean please?
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Re: The Humble EL34

Post by IslandPink » Wed Jul 12, 2017 9:07 pm

Low frequency single-ended pentode ?
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pre65
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Re: The Humble EL34

Post by pre65 » Wed Jul 12, 2017 9:09 pm

andrew Ivimey wrote:
Wed Jul 12, 2017 9:02 pm
'LF SEP chsnnel' ? What's that mean please?
Low Frequency Single Ended Pentode Channel ?

On the circuit V1a has several quite different valves listed. Is the circuit supposed to work with any of them ? :?
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andrew Ivimey
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Re: The Humble EL34

Post by andrew Ivimey » Wed Jul 12, 2017 9:36 pm

The biasing resistor on the lm317 will need to change depending on choice of valve ... and there's a quite a range between ecc83 etc, so let's assume that this is just a potential circuit with quite a lot of maths to do depending on the valves used. I think the PSU is quite ugly too but that depends on the secondary windings for the HT. I'd much rather use full wave GZ34 than mess with whatever is being used on the schematic.

Still there you go!
Philosophers have only interpreted the world - the point, however, is to change it. No it isn't ... maybe we should leave it alone for a while.

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