The F5 is a very fine amp but this is the tubes forum. No trespassing.
Ok -- here's my 20EZ7 amp:
An externally hosted image should be here but it was not working when we last tested it.
I use a pair of Mullard 3+3s.
They drive a pair of Frugel-Horns Mk3s with Alpair 7.3s together with a Tang Band 6.5" subwoofer in a Cerebus ported box. The subwoofer has a plate amp. but maybe the Alpairs are a bit underpowered although they sound very good in my small lounge.
The Mullard 3+3s are great little amps. and are my first builds for something like 40years! I now have a good selection of Mullard valves after hours on Ebay. Valves sound much warmer and detailed to me. Signal source is a netbook running Foobar2000 and 24 bit FLAC files (ancient and modern). I listen about 4 hours a day and longer at weekends.
I like classical chamber music and solo instrumental works. It might be my age but full scale orchestral works tend to sound muddled to my ears but maybe it's too much to ask of a 4" driver.
They drive a pair of Frugel-Horns Mk3s with Alpair 7.3s together with a Tang Band 6.5" subwoofer in a Cerebus ported box. The subwoofer has a plate amp. but maybe the Alpairs are a bit underpowered although they sound very good in my small lounge.
The Mullard 3+3s are great little amps. and are my first builds for something like 40years! I now have a good selection of Mullard valves after hours on Ebay. Valves sound much warmer and detailed to me. Signal source is a netbook running Foobar2000 and 24 bit FLAC files (ancient and modern). I listen about 4 hours a day and longer at weekends.
I like classical chamber music and solo instrumental works. It might be my age but full scale orchestral works tend to sound muddled to my ears but maybe it's too much to ask of a 4" driver.
Here she is : SE 6146B each driven by a 6C4. Speakers are Fostex FE-166en in a BiB. It gets about four hours a day and on the weekends is on probably ten hours each day. And no, that is not a pot plant behind the TV.
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...snip pix...
falseralia?
Great! Big sound is what I'm after. 813 is still affordable but, getting the OPT to match is ....?
Enjoy your fruit of love.
Hi Santa, is that a Hammond opt you used? can you give me the part number please?
I agree 800V @ 100mA requires a heavy duty OPT! I run my 300B carbob plates at 435V at 90mA. For the OPTs I use 30W Hammonds and they are huge.
Running in the study, sources are Internet radio, terrestrian digital radio and computer:
EL36 triode strapped SE, EF95 driver, unusual feedback scheme (output stage to driver screen grid), about 2x 5W Po. If you don´t count the Alps pot, parts price was less than 100€. (Mostly from the drawers...)
Regards, Tom
EL36 triode strapped SE, EF95 driver, unusual feedback scheme (output stage to driver screen grid), about 2x 5W Po. If you don´t count the Alps pot, parts price was less than 100€. (Mostly from the drawers...)
Regards, Tom
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Phono Preamp
Hi guys! A while back I was asking questions on how to properly get at wiring up a preamp properly. And now with all your guys help and tips, it is now complete!
More photos and details :
Phono Pre-Amplifier
Hi guys! A while back I was asking questions on how to properly get at wiring up a preamp properly. And now with all your guys help and tips, it is now complete!
More photos and details :
Phono Pre-Amplifier
Hi 6L6,
Im glad you enjoy! I actually was just putting in the one that accompanies it. A headphone amp! A low impedance D3A single stage amp! Check it out
Click below to find more!
D3A Headphone Amplifier
Im glad you enjoy! I actually was just putting in the one that accompanies it. A headphone amp! A low impedance D3A single stage amp! Check it out
Click below to find more!
D3A Headphone Amplifier
Greetings,
What I am not listening to:
<1843s.jpg>
(Jolida 302A with KT90 triode, with all the usual mods like Auricap, FRED, etc).
(Various SE EL34 amps: Angela Simple El34 with 5691, RH34 using the original 6N8P - with Auricaps, fast diodes, Black Gates, etc. but both keeping the original OTs)
(In the X-A2 box is an LM49811 driving the original SAP15 darlingtons).
What I do like at the moment:
<1847s.jpg>
Two modified Meng EL34 - one is essentially a Simple SE, the other is a full Power Drive using 2sk3767. EL34 triode, both using D3A as driver at 10mA, Rk=150R with 2K2 feedback from secondary. The voltage doubler PSU in the Meng is great for hacking up the auxiliary +/-180V required.
Very important for both of these amps: the Transcendar OPT, fits in the existing chassis. The sound is open and beautifully relaxed. I did not try anything else as far as good transformers are concerned - quite happy with the Transcendars.
Speakers: Dynaudio Contour 1.3SE and Harbeth C7/ES2.
Thanks for the great thread!
What I am not listening to:
<1843s.jpg>
(Jolida 302A with KT90 triode, with all the usual mods like Auricap, FRED, etc).
(Various SE EL34 amps: Angela Simple El34 with 5691, RH34 using the original 6N8P - with Auricaps, fast diodes, Black Gates, etc. but both keeping the original OTs)
(In the X-A2 box is an LM49811 driving the original SAP15 darlingtons).
What I do like at the moment:
<1847s.jpg>
Two modified Meng EL34 - one is essentially a Simple SE, the other is a full Power Drive using 2sk3767. EL34 triode, both using D3A as driver at 10mA, Rk=150R with 2K2 feedback from secondary. The voltage doubler PSU in the Meng is great for hacking up the auxiliary +/-180V required.
Very important for both of these amps: the Transcendar OPT, fits in the existing chassis. The sound is open and beautifully relaxed. I did not try anything else as far as good transformers are concerned - quite happy with the Transcendars.
Speakers: Dynaudio Contour 1.3SE and Harbeth C7/ES2.
Thanks for the great thread!
