Classified government ultimate gainclone?

[Hybrid fourdoor]

[iCebReakEr409]

how expensive are those apex power opamps? i couldnt find any prices. i guess they are way to expensive or something.

[Hybrid fourdoor]

Ya your right, the only thing I could find was this

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Texas Instruments Burr-Brown part______Apex part_______Part Fit

OPA541___________________________PA45_____________ P/D*


*P/D) = Pin for pin compatible - major performance differences noted

And the OPA541 retails for about $100ea at Digikey

[tecnofossil]

Originally posted by Hybrid fourdoor
Ya your right, the only thing I could find was this

-----------------------------------------------------------------------------

Texas Instruments Burr-Brown part______Apex part_______Part Fit

OPA541___________________________PA45_____________ P/D*


*P/D) = Pin for pin compatible - major performance differences noted

And the OPA541 retails for about $100ea at Digikey

The OPA541AP retails for 15 dollars and some change. The high grade mil unit is over 100. Probably work as well for audio applications. By the way, with the exception of being able to operate in unity gain, the LM3875 chips are faster and have a slightly higher output.

-T

[theChris]

interesting -- look closely at the caseing and it has the letter BeO... berellium-oxide.

[tbla]

its the stereo from the spaceshuttle......

[tecnofossil]

Originally posted by tbla
its the stereo from the spaceshuttle......

Guess what,
The shuttle voice communication panel uses...... the Bose Acoustimas midrange-tweeter units. I believe there is two drivers, center of the panel.

Doh!

-T

[tecnofossil]

Originally posted by theChris
interesting -- look closely at the caseing and it has the letter BeO... berellium-oxide.

No doubt the casing is high grade. But the circuitry is the same. (tighter spec limits for accept/reject)

Don't they look nice though!

-T

[tbla]

the Bose Acoustimas midrange-tweeter units

i thought that nasa rejected/ejected the bose-system after the last shuttle-crash.........

[janneman]

Berillium-Oxide is used internally as a thermal conductor between the power dies and the casing. Due to EPA laws, this must be shown on the outside, as BeO is toxic. You need to dispose of these things as toxic waste.

Jan Didden