Newbie need help in designing tube preamp for my 3886 GC??Please Help me!!

thomgun_lc · 25th July 2005, 06:49 AM

Hi there. I have a 3886 GC amplifier. But, i think my amp still need a preamp to provide line level gain (maybe about 2.5x)

When i run my LM3886 amp, i try to combine this amp with two my friend's preamp (bipolar transistor and valve).

Then, i got some result. The preamp with bipolar transistor has an give an effect to my 3886 become live, and a little rough. But when i try to combine my amp with tube preamp

, of course my 3886 amp become smooth, natural with a deep.
So, i decide to build a tube preamp.

But, i still newbie in tube, and i want to build that tube preamp. Can anyone help me???
I prefer to build a simple preamp with a simple design, less component but have a high quality.
What tube should i use??12AU7??5687??12AX7??
Do i need to add a choke in psu design??or just use CRC filter???
Is it good to use 1 tube twin trioda in 2 channel??
I need ur help please

Thx

leadbelly · 25th July 2005, 09:39 PM

Poll..anyone interested in an Aikido linestage PCB group buy?

thomgun_lc · 29th July 2005, 06:38 AM

Hoi everyone!! Any other simple preamp for newbie using tube.

25th July 2005, 06:49 AM	#1
thomgun_lc diyAudio Member Join Date: Mar 2005 Location: Indonesia	Newbie need help in designing tube preamp for my 3886 GC??Please Help me!! Hi there. I have a 3886 GC amplifier. But, i think my amp still need a preamp to provide line level gain (maybe about 2.5x) When i run my LM3886 amp, i try to combine this amp with two my friend's preamp (bipolar transistor and valve). Then, i got some result. The preamp with bipolar transistor has an give an effect to my 3886 become live, and a little rough. But when i try to combine my amp with tube preamp , of course my 3886 amp become smooth, natural with a deep. So, i decide to build a tube preamp. But, i still newbie in tube, and i want to build that tube preamp. Can anyone help me??? I prefer to build a simple preamp with a simple design, less component but have a high quality. What tube should i use??12AU7??5687??12AX7?? Do i need to add a choke in psu design??or just use CRC filter??? Is it good to use 1 tube twin trioda in 2 channel?? I need ur help please Thx

25th July 2005, 09:39 PM	#2
leadbelly diyAudio Member Join Date: Dec 2002 Location: Calgary, Alberta	Poll..anyone interested in an Aikido linestage PCB group buy? __________________ Aerodynamics are for people who can't build engines. Enzo Ferrari

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
A newbie need helps on the very 1st tube PreAmp	Cruzs	Tubes / Valves	7	16th October 2008 08:46 PM
Newbie parellel 3886 speaker impedence question	2004ex	Chip Amps	5	16th April 2007 07:26 PM
Newbie want to build simple tube preamp&psu!need help!	thomgun_lc	Tubes / Valves	55	29th November 2005 02:08 PM
Preamp suggestions for a tube newbie	santiu	Tubes / Valves	4	22nd September 2005 01:11 AM
What preamp should i build for my 3886 GC??Tube?MOSFET?OPAMP?Bipolar??	thomgun_lc	Chip Amps	45	14th August 2005 04:27 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read

29th July 2005, 06:38 AM	#3
thomgun_lc diyAudio Member Join Date: Mar 2005 Location: Indonesia	Hoi everyone!! Any other simple preamp for newbie using tube.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)