Outlaw Audio home shop products hideout news support about
Topic Options
#96586 - 05/15/17 10:17 AM Output transistor type
Stephen B Offline
Gunslinger

Registered: 01/15/15
Posts: 214
Loc: East Texas
Can someone tell me what type output transistors the Model 5000 employs?

I am looking for an amp to pair with my Adcom GFA-585LE to be used for biamping my center channel and surround duties. My goal is to match the Adcom as closely as possible. Thanks

Top
#96588 - 05/15/17 12:49 PM Re: Output transistor type [Re: Stephen B]
Stephen B Offline
Gunslinger

Registered: 01/15/15
Posts: 214
Loc: East Texas
I found the answer.

Two pairs of 150-watt Toshiba bi-polar output transistors per channel for fail-safe reliability.

Done in pairs this would be a Darlington configuration, correct?

Top
#96593 - 05/16/17 04:25 PM Re: Output transistor type [Re: Stephen B]
EEman Offline
Desperado

Registered: 11/11/09
Posts: 514
Loc: Canton, MI
I'd have to see the schematic to be sure but I'm guessing it's not a Darlington pair. I can't see in the spec but I'm guessing it's a class AB or similar with the transistor pairs (PNP and NPN) in parallel for the failsafeing.

That being said, it would also be possible to build a class A amplifier with two Darlington pairs, using four transistors. Of course then the transistors would have to be biased active which means you could cook on the amp whenever it's powered.
_________________________
975/7075/SMS-1
Aperion Verus Grand Towers & Bookshelves, Verus Forte Center, Infinity Surrounds, Ultra-X12
Oppo BDP-203, XBOX360, Xbox One
LG 65" OLED
RR2150 w/Klipsch SCR-2

Top
#96595 - 05/16/17 09:53 PM Re: Output transistor type [Re: Stephen B]
Stephen B Offline
Gunslinger

Registered: 01/15/15
Posts: 214
Loc: East Texas
Thank you for the explanation.

Top

Who's Online
0 registered (), 122 Guests and 3 Spiders online.
Key: Admin, Global Mod, Mod
Newest Members
Hedoboy, naowro, BeBop, workarounder, robpar
8705 Registered Users
Top Posters (30 Days)
Helson 1
patm1198 1
Forum Stats
8,705 Registered Members
88 Forums
11,326 Topics
98,691 Posts

Most users ever online: 476 @ 12/28/22 08:54 PM