API 225L compressor pics

GroupDIY Audio Forum

Help Support GroupDIY Audio Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

[silent:arts]

Well-known member
Joined
Jun 4, 2004
Messages
5,236
Location
Berlin, Germany
We have 8 of this at work, and last weekend I've done some shots:

225L-Front.small.JPG

front panel

225L-Up.small.JPG

you can see the 2510 ...

225L-Down.small.JPG


225L-Top.small.JPG

the top ...

225L-Main2520.small.JPG

the top - with removed VCA board:
1 x 2510, 1 x 2520, 1 x TN084CN, 1 x THAT 2252, Transformer labeled 491-0002

225L-Main.small.JPG

the top - with removed VCA & 2520 ...

225L-MainSolder.small.JPG

main PCB - solder side

225L-VCA.small.jpg

the VCA PCB:
2 x THAT 2180LB, 1 x TL082CP, 2 x NE5532AN, 1 x LM3915N

225L-VCASolder.small.JPG

VCA PCB - solder side

have fun  ;D
 
not satisfied; what happened to the leading lady?
...'The Hammer' Valentine... in Xmas hat for 18 months now.
sorry, I no have these pics chuck.
 
Amazing isn't it... That the ommission or addition of one little word can have such effect.

Am I satisfied?.... Not in the ****** slightest.
 
okgb said:
and un reliable you say ?

I can only speak for the 8 pieces we have, in this case: yes
jsteiger said:
[silent:arts] said:
correction:
we have 8 of this at work, but since always at least 4 are broken they will be replaced soon.
No kidding? That is not good.  :mad:

no kidding :eek:

I already reverse engineered the schematic (no, I won't repost it here, it has been posted before) for doing the repairs on my own.
but it is always either the 2510 or (most times) the 2520.
I rebuild some to get the input signal from the side chain TL084, but they fail with the 2520 too.
Now you can say easy, buy replacements.
But I'm working for an "old school" german broadcast company, no credit card or paypal etc.
boring topic :-\
thing is: I just can't guaranty any fast service, now they have to go.
replacement might be vintage Neumann U473, or a GDIY511 Rack.
Problem with the last option: I'm not allowed to sell them one.
Germany.
 
Back
Top