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Calreq PQ1549

Categories
AudioDIY:Pro Audio
Features
Schematics | PCB layout | Instructions
PSU
 

This project is for building the Calrec PQ1549 Equalizer found in the Calrec "Polar" desk.

Images
Calrec PQ1549 Eq
Calrec PQ1549 Eq
Capacitors
Value Count Type LS Designators Note  
33u
12
Tantalum
 
 
16V
22u
6
Electrolytic
 
 
16V
47u
2
Electrolytic
 
 
16V
100u
3
Electrolytic
 
 
16V
22p
11
Ceramic
 
 
 
100p
2
Ceramic
 
 
 
6n8
2
Polyester/Mylar
7.5/10
 
 
22n
2
Polyester/Mylar
7.5/10
 
 
68n
3
Polyester/Mylar
7.5/10
 
 
100n
23
Polyester/Mylar
5/10
 
 
150n
1
Polyester/Mylar
7.5/10
 
 
680n
1
Polyester/Mylar
7.5/10
 
 
Resistors
Value Count Type Designators Note  
22
2
1%
 
 
1k
5
1%
 
 
1k5
4
1%
 
 
1k6
1
1%
 
 
3k3
2
1%
 
 
3k9
1
1%
 
 
4k7
2
1%
 
 
5k1
1
1%
 
 
6k8
2
1%
 
 
7k5
2
1%
 
 
8k1
1
1%
 
 
10k
6
1%
 
 
15k
4
1%
 
 
20k
23
1%
 
 
22k
2
1%
 
 
24k
2
1%
 
 
27k
4
1%
 
 
43k
2
1%
 
 
47k
2
1%
 
 
100k
17
1%
 
 
1m
2
1%
 
 
10k
4
Potmeter lin
 
 
100k
4
Potmeter log
 
Dual Reverse Log(Audio)
IC sockets
Type Needed
DIL-8
DIL-8
10
 

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