[sdiy] SAE 2200 PA Help

[phillip m gallo]

Maurizio,

As a former 2200 owner, i too had to "lay in" schematics. My Synth could pop
this amp and i repaired it at least once a year.

It will take a day or two to find the schematics and scan them.
Be careful repairing the amp as it is D.C. coupled and prone to flash fire.
Typically if your finals are blown so are your pre-drivers and (believe it
or not) you input matched differential pair. I have two finals which i got
from SAE before they crashed but i would source my predrivers from ECG.

Use a Variac.

regards,
p


-----Original Message-----
From: owner-synth-diy at dropmix.xs4all.nl
[mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of M. Falconi
Sent: Sunday, April 21, 2002 4:37 PM
To: Synth DIY
Subject: [sdiy] SAE 2200 PA Help


My power amplifier is burning out........sigh!
Its a SAE 2200 100+100 W made in USA in 1978, i love it....
i have two final transistor 2SB554 - 2SD424 and two driver transistor
out of use.
I found the final Transistor but the driver marked 11-00150 and 11-00151
i dont know this
Anyone can tell me equivalent or found for me schematics?

Thankyou and excuse me for my bad english

Maurizio

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