API

[Ethan]

525C

 

[Ethan]

560A

 

[Ethan]

560B

 

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API 554

 

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API 553

 

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API 650

 

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API 312

 

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API transformers

 

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API 2520 opamp datasheet

 

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API 2520 + appnotes 1/2

 

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API 2520 + appnotes 2/2

 

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API 2520 opamp internals (de-potted and drawn by our local user "rickc", back in late 70'es. Unknown precision).

 

[gyraf]

A list of API modules collected by John Klett, TechnicalAudio, some years ago:

112 Echo/Cue Switching Matrix Module (4024 GoldSeal)
112A Echo/Cue Switching Matrix Module (4024 GoldSeal)
124 Output Assign Module - 24bus (4024 GoldSeal)
164 Submaster Module (1604)
212S Mic Preamp to drop in to Sony MXP-3000 series console
250A Variable Speed Capstan Drive for hysteresis synchronous motors
300PR Powered Rack for 300 cards w 300PS and Power transformers
300PS Plug-In Regulated Power Supply for 300 rack - Over Voltage Protected
300R Unpowered Rack for 300 cards - holds 1 or 2 cards
300R? Redundant Power Supply diode mix card w alarm relay
300RPR-1 Pre-wired 300PS rack w redundant power and 1 AC Power transformer
300RPR-2 Pre-wired 300PS rack w redundant power and 2 AC Power transformers
302 All Solid State Preamplifier, Line or Booster Amplifier
306 Relay Card w Drivers and Logic Gates
312 Mic Pre/Line Driver - early version use api input xfmr - 2520+xfmr out
312 Mic Pre/Line Driver - later vers used Jensen input xfmr in - 2520+xfmr out
314 Distribution Amp. - 1 xfmr in - 4 xfmr outs
318 Distribution Amp. - 1 diff in - 8 resistor isolated diff outs
318A Distribution Amp. - 1 diff in - 8 resistor isolated diff outs
324 Dual Channel Balanced Amplifier
325 Line, Booster or Combining Amplifier - 1 diff in - 2520 - 3 xfmr out
328 Distribution Amplifier -1 diff in / 8 resistor isolated diff out - 2520'S
330F Equalized Preamplifier - Film - diff in / 1 xfmr out
330G Fixed Frequency Oscillator - xfmr out
330P Equalized Preamplifier - Phono - diff in / 1 xfmr out
330T Equalized Preamplifier - Tape - diff in / 1 xfmr out
340 Peak Level Indicator
350 Voltage Controlled Amplifier - 2 summing inputs - Old VCA - 2520 xfmr out
350B Voltage Controlled Amplifier - 2 summing inputs - New VCA - 2520 xfmr out
PB-15 Proto-Board Compatible with 300 Cards
400 VU meter - 4" back illuminated VU meter from Dixson Inc.
405 Card Frame 10" wide - for five 312/325/330 etc.
408 Card Frame (for 302)
411 Card Frame 19" Rack Mounting - for eleven 312/325/330 etc.
420 7 Pin Op Amp Socket
425 Combining Network (for 325)
440-1 Linear Motion Fader - Cond. Plastic - illuminated - mono
440-2 Linear Motion Fader - Cond. Plastic - illuminated - 2 gang
440-4 Linear Motion Fader - Cond. Plastic - illuminated - 4 gang
440-6 Linear Motion Fader - Cond. Plastic - illuminated - 6 gang
440-8 Linear Motion Fader - Cond. Plastic - illuminated - 8 gang
440-RLA Replacement Lamp Assembly for 440 series faders
450 Rotary Fader
475-1 Linear Motion Fader - Cond. Plastic - no panel
475-2 Linear Motion Fader - Cond. Plastic - 3/4" panel
475-3 Linear Motion Fader - Cond. Plastic - 1 1/2" panel
480 Four Channel (Quadraphonic or Quadrasonic) Stereo Panner
500 Limiter-Singnal Conditioner - pre-delay - lots of features never went into production
500BLANK Blank Panel - Fits 500 style Module openings
500B4 Lunchbox 4 slot with internal psu
500B48V Lunchbox 4 slot with internal psu +48v
500B648V Lunchbox 6 slot with external psu +48v
500HPR rack mount 2 slot w psu 1U wired
500HPR48V rack mount 2 slot w psu 1U wired + 48v
500PS Plug-in Power Supply for VPR Rack ±16VDC 700mA (no xfmrs)
500R Unpowered Rack for most 500 Modules - 11 Slots
500VPR Powered Rack for most 500 Modules -10 Slots - XLR Connectors not wired
500VPR-EQ Powered Rack for 500 EQ Modules -10 Slots - XLR wired
500VPRDQ48 rack mount 10 slot w psu 3U wired + 48v
500VPREQ rack mount 10 slot w psu 3U wired
500WC Wood Cabinet for 500VPR
501 Aux Return Module
502 Dual Master Module (Aux sends etc.)
502(old API#) Power Supply ±24volts, 3 Amps (for 302)
511B Input Module - (2001)
512-1 Input Module - Mic, Aux, HL - Aux is second HL input - std. vers.
512-1P Input Module - Mic, Aux, HL - 512-1 w Phantom Power feed to Mic 1
512-2 Input Module - Mic, Aux, HL - Aux is padded
512-2P Input Module - Mic, Aux, HL - 512-2 w Phantom Power feed to Mic 1
512-3 Input Module - Mic1, Mic2, HL - Two Mic inputs
512-3P Input Module - Mic1, Mic2, HL - Phantom Power feed to Mic 1 ONLY
512B Mic Preamp Module
515Q-4 Input Module (2824)
516 Input Module (4024 GoldSeal)
517 Sends Module (4024 GoldSeal)
518 Input Module
525 Compressor-Limiter
525B module dynamics comp/lim/exp/deesser (only 40 made - discontinued)
525C Compressor-Limiter
525D Compressor-Limiter
525D-EQ Compressor-Limiter - Pin Compatible with EQ Modules - no side chain access
527 Cue Module
528 Input Assign Module - (2488)
528C Input Assign Module - (2488)
536 Input Module - (3232)
541 Echo/Cue Send Master Module (4024 GoldSeal)
544 Input Module - (1604)
548 Input Module - (3232)
550 Equalizer - 3 Bands 11 freqs. Proportional Q w Hi and Lo Pass Fltrs - two 2520's
550A Equalizer - 3 Bands 15 freqs. Proportional Q w Hi and Lo Pass Fltrs - two 2520's
550A-1 Equalizer - 3 Bands 15 freqs. Constant Q w Hi and Lo Pass Fltrs - IC's and 2520
550B Equalizer - 4 Bands 28 freqs. Proportional Q - two 2520's
550L Equalizer - 4 Bands 28 freqs. Proportional Q - two 2510's for API Legacy console
550S Equalizer - 4 Bands 28 freqs. Proportional Q - two 2510's for Sony MXP-3000 console
553 Program Equalizer - 3 Band - 3 Freqs. - 2520
554 Parametric Equalizer - 3 Band - Unstepped
559 Graphic Equalizer - 9 Bands - Stepped Lever type Boost/Cut switches
560 Graphic Equalizer - 10 Bands - Proportional Q w 2520 and IC op amps as L's
560A Graphic Equalizer - 10 Bands - Proportional Q w IC op amps throughout
560AT Graphic Equalizer - 10 Bands - Proportional Q w IC op amps throughout - xfmr out
560B Graphic Equalizer - 10 Bands - w 2520 and IC op amps as L's - no transformer - special order
560BT Graphic Equalizer - 10 Bands - w 2520 and IC op amps as L's - Output xfmr - standard version
562 two 560 EQ's in 1U Rack Mount
565-AT Personality Equalizer
575 Oscillator Module - Available on a limited basis from API - call for price
BP-5 Blank Panel - Fits 500 style Module openings
E528 Echo Send and Return Module - (2488)
E528C Echo Send and Return Module - (2488)
E536 Echo Return Module - (3232)
E544 Echo Return Module - (1604)
E548 Echo Return Module - (3232)
602 Power Supply ±16 volts, 250mA
605 Power Supply ±16 volts, 500mA
610 Power Supply ±16 volts, 1 Amp
620 Power Supply ±16 volts, 2 Amps
635 Power Supply ±16 volts, 3 Amps and 24 volts, 5 Amps
648 Power Supply ±16 volts, 4 Amps and 24 volts, 8 Amps
650 Audio Power Amplifier 50 watts [this was redesignated as Model 705]
650A Modular Power Supply 5-10VDC @ 8A or 10-24VDC @ 5A
650RE Rack Frame holds Four 650A PSU - 3U High
701 10 Watt Power Amplifier
701A 18 Watt Power Amplifier
705 50 Watt Power Amplifier
712 120 Watt Power Amplifier
730 Dual 200 Watt Power Amplifier
812 Monitor Matrix Module (2488)(2824)(3232)
812-2S Monitor Input Channel Module - 2 stereo sends (4024 GoldSeal)
812-4 Monitor Input Channel Module - 4 mono sends (4024 GoldSeal)
812P Pan Monitor Matrix Module (2488)(2824)(3232)
813 Monitor and Echo Module (2488)(2824)(3232)
813P Pan Monitor and Cue Echo Module (2488)(2824)(3232)
814 Control Room Monitor Assign Matrix (2488)(2824)(3232)
817 Cue Mix Module - (automix)
825 Control Room Master Module (2488)(2824)(3232)(4024 GoldSeal)
825A Control Room Master Module (automix)
826 Studio Monitor Master Module (2488)(2824)(3232)(automix)(4024 GoldSeal)
827 Cue Master Module (2488)(2824)(3232)
830 Slate, Tone Talkback Module (2488)(2824)(3232)(4024 GoldSeal)
835 Control Room Master Module
840 Slate, Tone Talkback Module (1604)
845 Control Room Master Module (1604)
846 Foldback Module (1604)
897 Cue Master Module (automix)
912D Mic Preamp
940 Automated Fader
941 Automated Fader
942 VCA Fader - not automated
944C Input Module (automix)
954C Programmable Parametric Equalizer
954F EQ Group Control (automix)
E944C Echo Return Module (automix)
1024 Random Access Programmer
1048 Input Module as used on the current API all descrete console
1460 Sync Generator - 14KHz Film
2510 ±32volt High Voltage Discrete OpAmp (like 2525 but pin compatable with GML OpAmp)
2520 ±20volt Discrete OpAmp
2525 ±32volt High Voltage Discrete OpAmp
2551 VCA
2551B VCA
3124 1 U Rackmount Four Chan Mic Pre with Sprinkles
3124M 1 U Rackmount Four Chan Mic Pre with Sprinkles and mixer, pan, etc.
5502 1U Rackmount Two Channel 550B style EQ
7312 Mic-Pre/Line Amplifier
7326 Distribution Amplifier
7410 Equipment Tray
7640 Power Supply
7702 Monitor Amplifier
8100 VU meter amplifier
8110 VU meter amplifier Switchable VU/Peak/Peak Hold
8318 Distribution System with sixteen 318 Cards and two 300PS PSU's
8318R Wired Rack for 8318 less cards
AP2157 Output (75 to 150/150 +30dBm) - open frame
AP2158 Output (75 to 150/150 +30dBm) - open frame w big tabs
AP2164 Bridging Input (10K to 600) - flanged can with hook terminals
AP2169 Mic Input (300/300 to 10K) - round can with wire leads
AP2503-1 Output (75 to 150/150/150? +30dBm) - open frame w cover
AP2503-2 Output (75 to 150/150/150? +30dBm) - open frame w tabs
AP2621 Line to Line (600 to 600)
AP2622 Mic Input (300/300 to 10K) - PC mount can
AP2623-1 Output (75 to 150/150) - open frame - wire leads
AP2623-2 Output (75 to 150/150) - open frame - wire leads and tabs
AP2623-3 Output (75 to 150/150) - open frame - solder lugs and tabs
AP2623-4 Output (75 to 150/150) - open frame - PC mount
AP302T2 Output (75 to 150/150 +30dBm) - open frame pcb mount
EX-10 Extender Board 10 pin
EX-12 Extender Board 12 pin
EX-15 Extender Board 15 pin extender for 300/500 Modules
EX-18 Extender Board 18 pin
EX-22 Extender Board 22pin

 

[gyraf]

A bit more on API Transformers 1/2

 

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A bit more on API Transformers 2/2

 

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API "Thrust- filter" (re-drawn for GSSL use)

 

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API 550A schematic (cannot recall where it's from):

 

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API meter amp

 

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API 328

 

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API 325