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/

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.

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.

NTE Electronics - NTE1155 - IC, Audio.

5.8 Watt Audio Power Amp.

Case: 10 Sip.

Alternates: ECG1155, GEIC-179, SK3231.

New.