Looking for Metal Can Equivalents of MPSA42/92, BC182B, BC546B, BC556B, BC449A

[NagysAudio]

I'm looking for metal can equivalent transistors of the following:

MPSA42
MPSA92
BC182B
BC546B
BC556B
BC449A
BC449

Any help will be appreciated. Thanks!

[Nico Ras]

Go look at MAT02 and MAT03, some of the best you can get. If you replace the FETs in your Goldmund clone with these there will be a remarkable improvement.

Nico

[wahab]

Originally Posted by Nico Ras

Go look at MAT02 and MAT03, some of the best you can get. If you replace the FETs in your Goldmund clone with these there will be a remarkable improvement.

Nico

These are dual transistors rated at 40V VCE, while those he listed
are ranging from 45 to 200V..

[Ian Finch]

Consumer (audio) parts moved to plastic many years ago in all areas other than power
and some RF. There will be similarities between GP amplifiers like a BC108B, BC548B and
BC182B but when it comes to higher Vce ranges with complementary BC546/56
and MPSA42/92 etc. you will find few equivalents, if any, and may need to redesign
depending on your actual circuit requirements.

But this is a "high quality appearance" issue, no?

[Nico Ras]

Wahab,

His Goldmund uses a cascode, no sweat adjusting it to use these dual low noise transistors.

Nico

[MJL21193]

2 solutions:
Wrap tin foil around the ones listed.
Buy 1,000,000 Monopoly games, remove the 'Top Hat' game piece and epoxy it over each transistor

[Ian Finch]

Originally Posted by MJL21193

Buy 1,000,000 Monopoly games, remove the 'Top Hat' game piece and epoxy it over each transistor

Seems you've tried this already...did it look more impressive?

[MJL21193]

Originally Posted by Ian Finch

Seems you've tried this already...did it look more impressive?

Very dapper!
A bit costly, but it convinced me they sounded better and we know you can't put a price on that.

[ostripper]

Originally Posted by MJL21193

2 solutions:
Wrap tin foil around the ones listed.
Buy 1,000,000 Monopoly games, remove the 'Top Hat' game piece and epoxy it over each transistor

Or go all the way and pot the whole voltage stage. Keep certain aspects a closely gaurded secret ,and charge out the wahoo for them. One could also just paint them silver and classify them as mil spec. Aren't we awful ... no faith in audiophile "magic".

The best idea is actually a varient of the first one above , enclose the voltage stage in tin like a TV tuner module :


OS

[MJL21193]

Originally Posted by ostripper

One could also just paint them silver and classify them as mil spec.

Dip them in molten iron!!!
We all know that a little heat will make them sound better.