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Bijou All Tube Futterman Headphone Amplifier - Page 75

post #1111 of 3977
8/17/08 at 2:46am
Thread Starter 
No , you just insist on building the most complicated rigs that leave most of us mortals floundering ..dB

ps if it turns out to be something ridiculously simple, prepare to be 'egged' and ridiculed into submission
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post #1112 of 3977
8/17/08 at 3:03am
Quote:
Originally Posted by dBel84 View Post
No , you just insist on building the most complicated rigs that leave most of us mortals floundering ..dB

ps if it turns out to be something ridiculously simple, prepare to be 'egged' and ridiculed into submission
More ridiculously simple the better - I rather fancy myself the idiot savant. Now, I'll get back to my R-10 clones... and should I be able to do it, the proof is there that anyone can. Oh, and the path will be cleared for balanced Bijou for the tweaks section, once we all have a chuckle, and it isn't something far more sinister..
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post #1113 of 3977
8/17/08 at 3:43am
Quote:
Originally Posted by pabbi1 View Post
Thanks guys - seems like I'm always lowering the bar in DIY.
NO WAY. The only way to push the limit is to get yourself in trouble. I'm behind you 100%!
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post #1114 of 3977
8/17/08 at 10:45pm
Hey rune, would a switch between the B+ line and the amp board suffice as a tube warm-up circuit? or would i need to include the psu tube in it? thanks

edit: and would you want the B+ floating in off position, or connected to ground thru a 100k 1w resistor?
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post #1115 of 3977
8/18/08 at 2:01pm
As if this were not bad enough, I look on the website and find a 'Super Bijou' (in work)... oy vey.

Dare I ask what the delta might be, or should that be best left for another thread?

<sigh>

All shipped Ron, ygpm.
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post #1116 of 3977
8/18/08 at 8:16pm
OK, I have my fingers crossed for a friday delivery. ;-)
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post #1117 of 3977
8/20/08 at 7:20pm
Yes, indeed the eagle has landed. USPS priority mail worked very well this time. Everything arrived with no damage, unlike Jim Carreys handling of the package in Ace Ventura. Looking forward to the process of discovery on Pabbi's amp. ;-)
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post #1118 of 3977
8/22/08 at 1:31am
This is the way that I will be looking to wire the amp for balanced mode............

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post #1119 of 3977
8/22/08 at 11:18am
yes, I (think) followed Amb's balanced wiring - and originally for SE also, but removed that for (relative) simplicity. Ugly as it may be...

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post #1120 of 3977
8/22/08 at 12:50pm
Hey,

I am looking strongly into making one of these things in a single ended configuration.

The kits look like a good idea for my situation and for the sake of ease to build. My better sources are not going to see as much benefit with my current Millet.

Would $200 be sufficient? What is a good transformer to use and what would the cost on that be (place to get it)?

Anyone know of any powder coated cases under $40?

I think that this will be a perfect intro for me into all tube designs and get into a bit of rolling....
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post #1121 of 3977
8/22/08 at 1:23pm
Quote:
Originally Posted by -=Germania=- View Post
Hey,

I am looking strongly into making one of these things in a single ended configuration.

The kits look like a good idea for my situation and for the sake of ease to build. My better sources are not going to see as much benefit with my current Millet.

Would $200 be sufficient? What is a good transformer to use and what would the cost on that be (place to get it)?

Anyone know of any powder coated cases under $40?

I think that this will be a perfect intro for me into all tube designs and get into a bit of rolling....
Transformers are best purchased from Angela (Angela Instruments: Online Catalog) in my experience (defined in the BOM), and have a look at the Nabu case - truest of bargains, with room for a DAC, or (tight) balanced. My expenditure is about $600 to date, with parts coming (literally) from 17 sources all over the world.

You might can do this for $200 SE, depending on attenuator / caps / tubes (quality & quantity) IFF you shop a LOT or chase the majority from Mouser, including caps. If you had a local surplus, all the more likely.
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post #1122 of 3977
8/22/08 at 3:16pm
The Nabu isn't really tall enough.
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post #1123 of 3977
8/22/08 at 3:26pm
Would a single ended fit in a Hammond 1441-16?

I would make ports for the appropriate components (tubes + transformer) to make it easier to do rolling + prettier!
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post #1124 of 3977
8/22/08 at 3:41pm
Quote:
Originally Posted by pabbi1 View Post
You might can do this for $200 SE, depending on attenuator / caps / tubes (quality & quantity) IFF you shop a LOT or chase the majority from Mouser, including caps. If you had a local surplus, all the more likely.
I fail to see how it's possible without using entirely surplus parts and I have no idea what for an enclosure. The Hammond trafo alone is going run $60 w/ shipping.

More to the point I'd lobby that a few more projects under the belt would be a good idea before coming face to face with a 300V B+.
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post #1125 of 3977
8/22/08 at 3:44pm
Quote:
Originally Posted by -=Germania=- View Post
Would a single ended fit in a Hammond 1441-16?

I would make ports for the appropriate components (tubes + transformer) to make it easier to do rolling + prettier!
You could always do a bit of ground work and figure it out for yourself.
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