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RC4739 uA739 MC1303 Replacement

RC4739 uA739 MC1303 Replacement

Direct Replacement / Substitute / High Performance Upgrade for the RC4739, uA739 and MC1303 Dual Op-..

$20.70 Ex Tax: $18.95

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Direct Replacement / Substitute / High Performance Upgrade for the RC4739, uA739 and MC1303 Dual Op-Amps

MADE IN USA


This Drop In Board is a direct replacement and upgrade for the two RC4739 Op-Amps in the
AEG Telefunken M15 / M15A Playback Amplifier 
BC-WV1 ( Wiedergabe Verstärker BC-WV1 ), Record Amplifier BC-AV1 ( Aufnahme Verstärker BC-WV1 ), Phase Linear 2000 Series II (Phono Pre-Amp + Output Driver)
and will substantially lower the noise floor, improve distortion and give you more output power to drive 40 to 600 Ohm Inputs without a transformer, eliminating impedance mismatches.

This unit will enhance any Equipment in performance which utilizes the
RC4739, uA739 and MC1303!




This Drop In Board will work for any replacement of a RC4739. The RC4739 did not utilize any type of compensation, only IN+, IN- and Out of its OP Amps.


The only exception would be when replacing a uA739 and  PINS 2 OUT LAG A; 3+4 IN LAG A; 10+11 IN LAG B, 12 OUT LAG B are used in your circuit - Please contact us before purchasing if you are not sure if this replacement board is going to work for you.




Our Drop In Circuit Board contains the standard Audio OP AMP NE5532
A (High Grade Version) from Ti and can be directly soldered into the RC4739 location on the Printed Circuit Board or just inserted into a 14 PIN DIP Socket if the PCB has a such a socket.

The Device is fully Pin compatible and exceeds the original maximum Operating Voltage of the
RC4739, uA739 and MC1303!


(Note: see above partial PIN compatibility with uA739 which depends on the circuit the device is used in)  

The replacement is therefor easy and hassle free.

The Pins are Gold Plated and the entire assembly is PB-Free (Europe)

Maximum Supply Voltage NE5532A: +/- 22VDC Symmetrical 

Performance Comparison Chart

Vsym = +/- 15.0 V, Vcm = 0 V, TA = 25°C

Original RC 4739, μA739 and MC 1303

NE5532A Drop In DIP Board

Ultra Low Noise Audio OP AMP

Parameters

Test Condition

MIN

TYP

MAX

MIN

TYP

MAX

Units

Input Offset Voltage

Rs ≤ 10KΩ

 

3.0

7.5

 

0.5

4

mV

Input Offset Current

 

 

7.0

300

 

10

150

nA

Input Bias Current

 

 

50

800

 

200

800

nA

Input Impedance, Differential

 

0.3 ?

5.0 ?

 

 


 

pF

Input Impedance, Common Mode

 

 

 

 

 


 

pF

Large Signal Voltage Gain 

 

 

46

 

25

100

 

dB

Power Supply Rejection Ratio

Vsy = +/- 2 V to +/- 18V

76

100

 



 

dB

Common-Mode Rejection Ratio

VCM = +/-14 V, -40°C ≤ T ≤ +125°C

70

100

 

70

100

 

dB

Input Voltage Range

 

-14

 

+14

-22

 

+22

V

DYNAMIC PERFORMANCE

Slew Rate

RL = 2 kΩ

 

1.0

 


9

 

V/μs

Gain Bandwidth Product

VIN = 5 mV p-p, RL = 10 kΩ, AV = 100

 

 

 

 


 

MHz

Unity-Gain Crossover

VIN = 5 mV p-p, RL = 10 kΩ, AV = 1

 

3

 

 


 

MHz

Phase Margin

 

 

 

 

 


 

Deg.

-3 dB Closed-Loop Bandwidth

AV = 1, VIN = 5 mV p-p

 

 

 

 

10

 

MHz

Settling Time

AV = 10, VIN = 10V p-p; 0.1%

 

 

 

 

4

 

μs

Total Harmonic Distortion Plus Noise

VIN = 5 V rms, RL = 2 kΩ, f = 1 kHz

 

0.05

 

 

0.003

 

%

NOISE PERFORMANCE

Voltage Noise

0.1 Hz to 10 Hz

 

2.5

 

 


 

μV p-p

Voltage Noise Density

f = 1KHz

 

10 (100Hz)

 

 

5

 

nV/Hz

Current Noise Density

 

 

 

 

 

0.7

 

pA/Hz


 


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RC4739 uA739 MC1303 Replacement

  • Brand: TitanAudio Ltd. IHTLTD
  • Product Code: RC4739 uA739 MC1303 Replacement Substitute Drop In DIP Board
  • Availability: In Stock
  • $20.70

  • Ex Tax: $18.95

Tags: RC4739 uA739 MC1303 Replacement Substitute Drop In DIP Board Ultra Low Noise OP AMP NE5532 Upgrade