The U22 is an EHT rectifier used in mains derived EHT in early television sets. The ratings of 5,200 volts and 1 mA define it for small screen CRT service. The u22 was used in the 1948 Murphy television receiver V114.

The U22 part is the CSD25302Q2 which is a P-Channel NexFET™ Power MOSFET. However, this IC is no longer available. On the link below you can find out active devices that can replace this IC.

Jan 13, 2020 · I'm working on an AKAI AM-U22 integrated amplifier. The original issue I had was that the tuner input was very low. ie, when I connected the tunner on AUX or TAPE inputs, it was playing much bettter than when I was using the TUNER input. The amplifier is based on the STK463 ic, which seems to be a single input i/c.

Mar 17, 2016 · More workaround has to be done further on to retain the C90 with 24V_FILT_RTN and to have binding capacitors between the GND and 24V_FILT_RTN near the U22 IC. Thanks for the help and I will update you further.

Project 19 Sound Maker The strobe IC (U23) produces an electrical “tone”. The pitch of the “tone” is adjusted by Build the circuit and turn on the changing how much electricity flows into its switch (S1). You hear sound from upper-left snap, using a resistor. Page 30: Noisy Strobe Light

Jun 20, 2024 · I was looking at a WD PCB and do see U21 and U23 quite close to the MOTOR IC. U22 seems to be next to the RAM/MEMORY. What chip does Q1 marked on the HDD pcb identify?

Apr 13, 2024 · Hello, I am working to get this board made from an assembler but the assembler seems to be giving me some grief about placing the op amp U22 (world's smallest op amp). Does anyone know the purpose of this singular op amp, and if the board can operate without it?

U22. Search (manufacturer PN): U22 Results 10 63223 References in database Max list size 10 For Audio IC please check Audio IC Circuits. Part Number Replace Part Summary Case Pinout; BU221 NPN Silicon: BUS13(A), BUW45...46, 2SC2123 BUX81 2N6308 KT8107B: 800, 15A, 100W: BU222 NPN Silicon:

This is the audio codec IC for the iPhone 6+, 6, and 5S.

Dec 30, 2016 · Hello ppl I'm repairing my Indus...the step-motor is dead (caused by the failure of U6 - UDN2541B). Of course I have ordered the parts (5x SN75437A). :-) But my question is another: I am seeing the mainboard and I saw an IC with the sign canceled The IC is U22 (CD74HC???).. Anyone knows the exact...