Audio IC

Sanyo - STK439 - IC, Audio.

2 Channel AF Power Amplifier.

VCC 39V, 56V max.

15 Watts Minimum.

Package: Thick Film Hybrid 15 Sip.

Original Sanyo - New Old Stock

Removed from Manufacture Pkg's.

Similar to ECG1219

Additional Forum Information: https://www.diyaudio.com/community/threads/stk439-internal-component-values.383906/

Toshiba - TA7217AP IC, Audio.

Single-Channel Encapsulated Audio Power-Output Amplifier.

Voltage: 9-18VCC.

Current: 60mA.

Dissipation: 5.8 watt.

Package 10 Pin sip.

Alternate: NTE1370, ECG1370.

STK5441 Secondary Regulator for VTR.

Package: Thick Film Hybrid 15 SIP.

Listed as Generic Manuf,acturer but we suspect is Sanyo Product.

STK4412 IC, audio. 2 Channel AF power amplifier. VCC 43V, 63V max. 20 Watt. Package: thick film hybrid 15 Sip. Listed as Generic Manuf, possibly a Sanyo product.

Sanyo - STK439 IC, Audio.

2 Channel AF Power Amplifier.

VCC 39V, 56V max.

15 Watts Minimum.

Package: Thick Film Hybrid 15 Sip.

Manufacture Pkg's.

 STK430III IC, audio. 2 Channel AF power amplifier. VCC 31V, 50V max. 22 Watt. Case: thick film hybrid 15 Sip. Listed as Generic Manuf, possibly a Sanyo product.

Toshiba - TA7222AP IC, audio.

Power amplifier 5.8 watt.

For car stereo/car radio audio output.

Package: 10 SIP.

ST Microelectronics - TDA2005 - IC, Audio.

20 Watt Bridge Amplifier for Car Radios.

Case: Multiwatt-11 Power SIP

Staggered Leads.

NEC Corporation - UPC592H2 - IC, audio. 2 Stage Amplifier,

5-13V 0.7-1.9mA with high output impedance.

Case: 7 Sip.

Bulk packaged.

Alternate: NTE1195.

NTE Electronics Inc. - NTE1235 IC, Audio.

Squelch amplifier.

Max voltage: 17 VCEO, 20VCBO.

Max current: 20mA.

Dissipation: 300mW.

Operating temperature: -55 to 125 Deg C.

Package: 7 Sip.

Alternate: ECG1235, SK3637

NTE Electronics Inc. - NTE1873 - IC, Audio.

2 Input audio/video switch for VCR system.

Package: 7 Sip.

Alternate: ECG1873.

Philips - ECG1027 - IC, Audio.

Power amplifier.

Case: Hybrid module 10 SIP.

New.

Alternate: NTE1027.

Philips - ECG1029 - IC, Audio.

AF PO 3.5 watt.

Package: 10 Pin Dip, staggered leads with mount tabs.

New Old Stock - Tarnished.

Alternate: NTE1029.

Philips - ECG1100 IC, audio. FM IF amp.

Package: Hybrid Module Tv Sound If Amp Fm If Amp 7-lead Sip.

Alternate: NTE1100.

NTE Electronics - NTE1128 IC, audio.

TV video IF amplifier.

Case: 7 Sip.

Alternate: ECG1128, GEIC-105, SK3488, TCG1128.

Linear. New.

NTE Electronics - NTE1155 - IC, Audio.

5.8 Watt Audio Power Amp.

Case: 10 Sip.

Alternates: ECG1155, GEIC-179, SK3231.

New.

NTE Electronics - NTE1100 IC, linear. TV sound IF amp, FM IF amp.

Package: Hybrid Module Tv Sound If Amp Fm If Amp 7-lead Sip.

Alternate: ECG1100, SK3223, GEIC-92.