Here is a little movie (7mb) of the little amp that could. (I call it the jdpp short for James Doddington PushPull)
Compromised URL removed by Moderation
smaller file without title and credits (4mb)
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Compromised URL removed by Moderationsmaller file without title and credits (4mb)
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Youtube.com link so you can see it as it starts and kill it if you don't find it interesting. (And so you don't have to download the whole thing first)
http://www.youtube.com/watch?v=A2ks5GjxcrE
And that way you can see the amps of some other Geeks
AX84 diy guitar amp
http://www.youtube.com/watch?v=R15m6EpGwRc
Marshall factory tour pt1
http://www.youtube.com/watch?v=MMn54QSvmX0
http://www.youtube.com/watch?v=A2ks5GjxcrE
And that way you can see the amps of some other Geeks
AX84 diy guitar amp
http://www.youtube.com/watch?v=R15m6EpGwRc
Marshall factory tour pt1
http://www.youtube.com/watch?v=MMn54QSvmX0
I am using a 6N6P in a schematic designed for a 6H30,and first impressions are WOW!!! very little if any microphonics,it blows away any 12AU7 I've used,a wonderful tube,really cheap as well.
jimmyd53 said:
Sure it can be found here,a super topology!!
http://digilander.libero.it/paeng/a_6h30s_line_preamp.htm
I recently rewired my 5687 simple linestage filament supply to use the 6N6P - I've always been a firm believer in the superiority of USA/Euro tubes - and the 6N6P has certainly changed my mind on that account.
Best bang for the buck tube out there.
Best bang for the buck tube out there.
single 6N6P for stereo pre-amp
Hi guys,
I'm going to have a shot at a very simple cathode follower pre-amp but using both sides of double triode like the 6N6P for the left and right channels.
I have attached a photo (don't have any software to design these yet; if anyone knows of a good freeware please advise).
How does this look?
Hi guys,
I'm going to have a shot at a very simple cathode follower pre-amp but using both sides of double triode like the 6N6P for the left and right channels.
I have attached a photo (don't have any software to design these yet; if anyone knows of a good freeware please advise).
How does this look?
6N6P with 8k...10k OPT, 5 W at class AB1.
An externally hosted image should be here but it was not working when we last tested it.
Yes, 1 to 10 ohms. These are to measure quiescent current separately from both triodes.
The drawing above is just the basic schematic. A bias balance adjustment is required for actual circuit, etc.
I understood your question so that you just wanted to know how the make class AB1 6N6P output circuit, not full working amplifier.
Am I right ?
The drawing above is just the basic schematic. A bias balance adjustment is required for actual circuit, etc.
I understood your question so that you just wanted to know how the make class AB1 6N6P output circuit, not full working amplifier.
Am I right ?
Hi!
Yes, but what would you suggest for bias balance adjustment ?
I would like to try Garter bias.
greets:
Tyimo
Yes, but what would you suggest for bias balance adjustment ?
I would like to try Garter bias.
greets:
Tyimo
Below is an example of bias balance arrangement with fixed bias (potentiometer P2 together with R13 and R14).
Garter circuit is possible with autobias only (as far as I know...).
An externally hosted image should be here but it was not working when we last tested it.
Garter circuit is possible with autobias only (as far as I know...).
6n6P linestage
I built a 6N6P parafeed line stage, and I'm very happy with it. The 6N6P is very linear. Here's a link to a post I made in the Magnequest forum.
Bwahahaha....! It's FRANKENLINE II ! - twystd - MagneQuest/Peerless Forum
It's a simple parafeed triode gain stage, with battery bias, K&K audio CCSs as loads, Magnequest 15K B7 transformers, Russian KBG parafeed caps, bypassed by Russian SSG silver and micas, DAC attenuators.
Power supply: small balanced power transformer, feeding R core power transformer, TV damper diode rectification, critical inductance choke input, LCLC PDM filter section, using Russian MBGO smoothing caps.
Like most tubes, not all 6N6Ps are created equal. IMO some of the best are early 70's vintage Reflector/Saratovs, same vintage Novosibirsks are very nice as well, the Novosibirsk with the red dab of paint at the tip of the tube are select grade, I buy them when I can find them. By far the best are the 1964 Reflectors with the square getter, and the old diamond shaped logo. They may be available in other years around that time, but I have only seen the 1964s.
The 6N6P is cheap, readily available, very linear, robust, and IMO sound great....obviously I'm a big fan of this tube.
twystd
I built a 6N6P parafeed line stage, and I'm very happy with it. The 6N6P is very linear. Here's a link to a post I made in the Magnequest forum.
Bwahahaha....! It's FRANKENLINE II ! - twystd - MagneQuest/Peerless Forum
It's a simple parafeed triode gain stage, with battery bias, K&K audio CCSs as loads, Magnequest 15K B7 transformers, Russian KBG parafeed caps, bypassed by Russian SSG silver and micas, DAC attenuators.
Power supply: small balanced power transformer, feeding R core power transformer, TV damper diode rectification, critical inductance choke input, LCLC PDM filter section, using Russian MBGO smoothing caps.
Like most tubes, not all 6N6Ps are created equal. IMO some of the best are early 70's vintage Reflector/Saratovs, same vintage Novosibirsks are very nice as well, the Novosibirsk with the red dab of paint at the tip of the tube are select grade, I buy them when I can find them. By far the best are the 1964 Reflectors with the square getter, and the old diamond shaped logo. They may be available in other years around that time, but I have only seen the 1964s.
The 6N6P is cheap, readily available, very linear, robust, and IMO sound great....obviously I'm a big fan of this tube.
twystd
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