I am looking to venture more towards a 300B dual tube per channel integrated amp for its sound preference and lower plate voltage. This dream machine might weight a ton after its done but that's fine. If I can get some suggestions with a rock solid simple design circuit with an excellent set of transformers that would be great. Integrated amp is always my personal preference. A dual tube mono block can be a last option. I saved up a handful of preamp, rectifiers and 300b power tubes. Any takes or suggestions will help be great.
I have been into 300B for while too. Saw a few and this is what I am looking at now. Not sure what kind of PT and OT are.
Check out the link to get 3 parts of 300B schematics
'300BPP_6SL7_6SN7'
I got this 300B for $200 but couldn't get the hum away so I am thinking to build a better one by using these tubes.
'Goldox 300B'
Check out the link to get 3 parts of 300B schematics
'300BPP_6SL7_6SN7'
I got this 300B for $200 but couldn't get the hum away so I am thinking to build a better one by using these tubes.
'Goldox 300B'
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Not sure a Push-Pull 300b amp is going to be running a lower plate voltage vs a single ended design. The whole idea is to get more power running two tubes per channel.
jeff
Friends PSE running 6sn7-6v6-300B sounded very very good but it's a traditional circuit with 300B filaments on DC. Tube PS is on separate chassis though.
I'm not super familiar with the 300b circuit. I worked on a lot of EL34 and Kt88 amps. This is the 300b amp I have now. I don't have the schematic yet but its a 6sn7 with a 5u4gb rectifier and single 300b. So far I like the sound of this amp. It took me a lot adjustments, finding the matching speakers to make its image sound. Its just incredible. There was a slight hum for I believe the distance / position of the transformer could be more apart in a different angle. I changed the wiring in the rectifier section and that toned it down to 99.7%.
Going back to the amp, I'm open on any design that's proven good and even high voltage as long as its not like an 845 broadcasting tube. Thanks...
Going back to the amp, I'm open on any design that's proven good and even high voltage as long as its not like an 845 broadcasting tube. Thanks...
This looks like a cool site to get some infos too. I guess I have to be member..?
Wow..200 bucks and what a score for a 300b amp. Youre doing the right thing just build another one which a point to point and much more simplified circuit. I posted my present amp now and that's a simple circuit. I love the sound of this amp. Even the low frequency baselines are dramatic. Total imaging. I wanna build an amp maybe like this or better circuit with more power. I wonder if the imaging is gonna be the same since its 2 tubes working at the same time. I'll get the schematic of the amp and see what we can figure out.
Western Electric has a huge list of SE operating points. You could get 12W per channel single ended if you push the tubes a little bit harder than most do. I would do this over push-pull, but YMMV of course.
Are you talking about 1 tube per channel?
Roughly how much life can I get lets say on a PSvane regular 300b tubes.
I don't have any long term experience with Psvane tubes, but I would expect 5 years on EH300Bs running reasonably hard.
That's a good lifespan. well see what I can come up with. so far with all the amps I have with the single tubes, I'm very happy with their lifespan and durability.
Which are the site of these western electric or other amps I can get an information to input together what I can build? Trying to get an idea about a good transformers too.
Which are the site of these western electric or other amps I can get an information to input together what I can build? Trying to get an idea about a good transformers too.
Western Electric - Official Home Page has the datasheet with the various operating points.
You'll have to figure out what you're willing to spend, and generally it's not too tough to pick a good piece of iron in a given price range. There are decent iron options for $250 and really good iron options for $1000. For higher powered 300B designs, you may want to stick with grain oriented silicon steel rather than some of the exotic lams.
You'll have to figure out what you're willing to spend, and generally it's not too tough to pick a good piece of iron in a given price range. There are decent iron options for $250 and really good iron options for $1000. For higher powered 300B designs, you may want to stick with grain oriented silicon steel rather than some of the exotic lams.
Not too long ago, I was looking at that electra print silver strand transformer. and maybe some other kinds that I may consider. I want to put a real good one might as well I'm here.
I'm not really sure if I wanna go silver strand on a 300b. My system setup uses 32 octave equalization and a fullrange speakers.
Well with this new amp, I should be limited in getting any speakers now due to its power. I have a very good budget so I'm okay with $1000.00
what is this grain oriented transformer?
PS.
I have a guitar amp that has custom wounded silver strand from different company 7 years ago. It became too bright for me.
I'm not really sure if I wanna go silver strand on a 300b. My system setup uses 32 octave equalization and a fullrange speakers.
Well with this new amp, I should be limited in getting any speakers now due to its power. I have a very good budget so I'm okay with $1000.00
what is this grain oriented transformer?
PS.
I have a guitar amp that has custom wounded silver strand from different company 7 years ago. It became too bright for me.
Grain oriented silicon steel is a type of lamination. If you're going to push a lot of power through a SE transformer, the exotic core materials may not perform so well at those levels.
Pick an operating point on the WE chart and see what Monolith and Sowter have to offer. You'll probably want to go custom to get exactly what you're looking for.
Pick an operating point on the WE chart and see what Monolith and Sowter have to offer. You'll probably want to go custom to get exactly what you're looking for.
This is a good site for amp ideas and transformer recommendations. This is a big help along the way on gearing up. there are more stuff that I need to know. the last time I built a complete amp was almost 30 years ago. But I did alot of 65 and 100 watts solid state from scratch. for 2 straight years. since then its just fix here and there.
Anyways I appreciate it. and b watching for some more ideas.
Anyways I appreciate it. and b watching for some more ideas.
I don't see any obvious error.
There are several conditions supporting >12W, even to 17W.
