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A Very Compact Hybrid Amp - Page 108

post #1606 of 2213
heh, I was the other way around, loads of phones and no decent amps.
post #1607 of 2213
Quote:
Originally Posted by holland View Post
SNIP
I should probably stop for a while and buy some headphones!
Funny how the 'usual' hifi rules are turned on their side in this hobby (spend most of your money on the speakers) Bet like me, all your amps are EXCELLENT
post #1608 of 2213
Just finished a splitter section transplant on CTH #9 (mine)..have Dayton caps in them and a shunted ALPS RK27.
It is going to make a trip up to Canada to John E Woven on loan for a month..sigh..going to be without a CTH for a little while longer .

The other CTH (#8) is waiting for the L1H inductor before i can case it up though the case work is done.



post #1609 of 2213
I also have a pair of Obbligato caps on the way to try out in the CTH.
post #1610 of 2213
Quote:
Originally Posted by sachu View Post
Just finished a splitter section transplant on CTH #9 (mine)
Nice work but you must know you cannot stop at 9 you must build at least one more to make it 10.
Maybe your 10th can have a medium-sized knob
post #1611 of 2213
Quote:
Originally Posted by cfcubed View Post
Maybe your 10th can have a medium-sized knob
Let me know if you want me to toss one in your next care package, Sachu!
post #1612 of 2213
sachu, you're a machine!
post #1613 of 2213
Quote:
Originally Posted by wiatrob View Post
Let me know if you want me to toss one in your next care package, Sachu!
you guys are evil i tell you...bah.. go ahead and drop one in ..throw in a couple of noval sockets in as well please.

Quote:
Originally Posted by zkool448 View Post
sachu, you're a machine!
one that is burnt out ..nearly. need to sit back and chill dude..
post #1614 of 2213
[QUOTE=sachu;5853192
one that is burnt out ..nearly. need to sit back and chill dude.. [/QUOTE]

Maybe listen to a little music?
post #1615 of 2213
he doesn't have time for music.... build moar amps dammit!!!
post #1616 of 2213
Guess who's having problems with a CTH build! Moi!

I built up another unit for this weekend's meet. The PS is having an issue:

The trafo buzzes loudly - then the amp blows a fuse (up to 1.5A) or shuts down the wall wart thermal trip after ~5 seconds (the 24V comes up, the Heater is 12.7V,
the plate voltage gets to ~65 then, poof.

I've verified all component values and orientations. I've replaced the 24V reg and TLE24.

My next suspicions are the splitter Q's and the Multiplier Q's... Anybody?
post #1617 of 2213
Thread Starter 
There has to be a short or near-short somwhere. And if that kind of current is flowing through any of the splitter transistors they were fried a long time ago.

Is this with or without tube?
Dr. Cavalli gained notoriety with his first DIY amplifier projects. His success has blossomed into Cavalli Audio, a world leader in amplifier design.
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post #1618 of 2213
This may be out of left field (and well i'm half asleep so my brain isn't fully working), but how hard would it be to get this thing battery powered?
post #1619 of 2213
Without tube. I have looked at all the solder joints for bridges and they look good. haven't done a component by component check yet - but I would think that something would be getting warm or smoking and there is no evidence of that.

I even get the e12 LED lighting.

C1L WAS in backwards, briefly, but didn't pop and has been replaced...

I may build up another and wait to troubleshoot this one after the meet.
post #1620 of 2213
Quote:
Originally Posted by aphexii View Post
This may be out of left field (and well i'm half asleep so my brain isn't fully working), but how hard would it be to get this thing battery powered?
Unless you want to use 2 truck batteries this amp isn't going to run long.
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