On Wed, 15 Oct 2008 23:11:16 +0100, Eeyore
wrote:



Marky P wrote:

Eeyore wrote:
Arny Krueger wrote:
"tony sayer" wrote

I Wonder how may pro recording bits of gear are around
with 5532's..

Tons and tons.

But 5532s used right are really very good pieces, even by modern standards.
And for the price...!

And to think they were around in the 1970s too ! And Philips / Signetics
initially only thought they were going to sell it into the telecoms market
because of the 600 ohm drive !

Philips = NE5532
Signetics ( Philips N.A.) = SE5532 btw.


The scarier part is how may pro recording bits of gear are around with
TL074s, or even NJM4558s in the signal path.

TL07Xs are still ok for some stuff, especially because of the jfet front end
but 4558s ? YUCK !

Graham

Well, since we're on the subject of IC's, I've dug out my little
drawer of IC's left over from my 80's electronics days :-)
Can't remember if any of these are op amps, but here are the numbers:
LM382N
LM380N

Maybe a crappy low power audio amp.

LM3482A

No idea about the above.


LM741 (pretty sure this is an op amp)

Pretty lousy one too by today's standards.


M5K4164ANP (ain't a bloody clue what this is)

Sounds like a Mostek part number. Does it have lots of legs ?

Yep. 16.


TIP31A

TO-220 medium power transistor. Forget which polarity.


ZTX300 (a little 3 pin thing)

Ferranti (now Zetex) small signal npn ? transistor. Their version (E-line) of
TO-92.


ZN414 (this is an FM radio on a 3 pin chip)

For a TRF design.


MJE2955

PNP complement of the 2N3055. TO-3 115W 60V device.


NE555P (loads of these buggers, I know they are timers).

They are. Single timers.

Graham

Thanks for that! Now I've gotta decide whether to bin 'em or keep 'em
for nostalga's sake :-)


Marky P.