trancedental
New member
Now wheres my tube stash gone?
Changing tube to an Art Tube MP
- Thread starter Vagodeoz
- Start date
apl
Stand Up Comity
apl
Stand Up Comity
Did you ever get it back together?
That guy went a little overboard.
B
Beck
Guest
apl
Stand Up Comity
The OPA2134 should be just right in that circuit for the TL072... and this may sound strange but I would replace the stock NE5532 with a select grade NE5532AN, or just leave it alone for now and see how it sounds with the new tube and the 2134. I like the 5532 for the most part.
The BBs look cooler, though.
dementedchord
Psychotic State alumni ch
i dont think the 2134 will work as well as a line driver than the 5532.... ymmv
B
Beck
Guest
If you really want a good BB in there instead of the NE5532, try the OPA2228. When you see a 5532/TL072 pairing it’s a good bet that a 2228/2134 pairing will drop in nicely… but I haven’t seen the schematic for the MP Studio. Does anyone know where I can see it on-line?
You’re putting in sockets so you can experiment, right?
You’re putting in sockets so you can experiment, right?
apl
Stand Up Comity
I haven't found one.
Beck said:You’re putting in sockets so you can experiment, right?
I've got a couple. Doesn't that add capacitance?
mshilarious
Banned
Yes, but ART used a socket in the DMPA, and Presonus did in the MP20, which both use or rather in the case of Presonus, recommended a swap to OPA2134, so in those circuit designs it seems not to have an adverse effect.
If you are a klutz with an iron, then use the socket to avoid overheating the chip. Otherwise, I wouldn't bother with sockets; OPA2134 is a good chip, if you're into experimenting then swapping opamps all day long might be fun, but I'd just solder in OPA2134 and get to making music.
Be careful or you'll end up like me
B
Beck
Guest
Just be sure to use machine sockets rather than the cheap tension type. There’s a night and day difference between the two types. Parasitic capacitance and inductance are insignificant with a good machine socket for these op-amps in this sort of circuit. Having the socket is helpful if you want to try other amps, or want to go back to the original. Once you solder something in, the traces on the board may or may not survive another desoldering and resoldering without falling apart.
Either one of these would work well for your application.
http://www.mouser.com/search/Produc...virtualkey64910000virtualkey649-DIP308-001BLF
http://www.mouser.com/search/Produc...50virtualkey51750000virtualkey517-100-008-050
If you decide to solder the ICs directly without sockets, do one pin at a time with a rest in between (have a jelly bean)
so as not to overheat the chip and ruin it.
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mshilarious
Banned
If you decide to solder the ICs directly without sockets, do one pin at a time with a rest in between (have a jelly bean)
He's taking out the jellybean!
I can solder a DIP-8 in about five seconds
B
Beck
Guest
He's taking out the jellybean!
I can solder a DIP-8 in about five seconds
It takes me 8 with a 15-watt iron, but I'm still working on it. It's only taken me 25 years to get that fast, so...
It takes me quite a bit longer without the soldering iron plugged in, however.
mshilarious
Banned
It takes me 8 with a 15-watt iron, but I'm still working on it. It's only taken me 25 years to get that fast, so...
Send me your wife's email address, and I'll make sure she gets you a tip temperature regulated iron for Christmas