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Questions tagged [replacement]

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0
votes
1answer
68 views

Determine a suitable replacement battery cell for an obsolete product?

A friend of a friend of mine has a prosthetic knee that was developed in 2010 which requires battery packs that are being phased out. He has asked me if there is a way to replace the internal ...
0
votes
1answer
40 views

Replacement part for MAX407 op amp [closed]

Electronics noob here. I need to find a replacement part for a MAX407. I am assembling this circuit and the shop I'm buying from doesn't have the MAX407 op amp in stock. Since I don't understand all ...
1
vote
2answers
90 views

Replacing a safety capacitor

one of my electronic appliances has stopped working after several years of use, it is definitely beyond the warranty period however I've been unable to find any more recent appliances that beat it. ...
6
votes
3answers
810 views

Fuse 125V/4A can be replaced with 250V/4A?

I want to replace a blowed fuse 125V/4A but it is rare to find them. Can I use instead a 250V/4A ? I read at https://www.mojotone.com/support/Knowledge-Base/Is-it-ok-to-replace-125v-glass-fuses-with-...
0
votes
2answers
54 views

Help identifying replacement regulator

I'm doing some proactive maintenance on a vintage games console from the late 70s. There are a couple of linear regulators which I thought would be prudent to replace whilst I'm at it. Unfortunately ...
0
votes
1answer
51 views

Factors to be considered while replacing dead cells with a new 18650 Li-Ion cell in a Laptop

I am currently using a Lenovo Z50-70 laptop. My battery condition is very poor and it lasts for only 20mins. So I decided to replace the dead cells inside the laptop battery on my own. My Laptop ...
0
votes
3answers
86 views

Is there a 74HCT03 equivalent I can just replace “as is” [closed]

Is there a 74HCT03 equivalent I can just replace "as is"? Of course, it will be better to buy the same exact chip reference but is it always the case? Many chips are equivalents pin-to-pin, right? ...
0
votes
0answers
17 views

With what can I replace power supply Foshan Hanyi S126SMD3 [duplicate]

I have an infrared sauna and it seems like the power supply is broken. I want to replace it, but it's really hard to find the original one: Foshan Hanyi S126SMD3 http://www.zidonghua.com.cn/...
0
votes
1answer
108 views

Can I change a capacitor with one with a higher capacitance?

Hi I have just joined after lurking a lot because I haven't found an answer that was specific enough for me. I have a Soviet synthesizer (TOM 1501) and it has some odd defects such as clicking noises ...
1
vote
1answer
166 views

Voltage regulator replacement

I have a gadget (a Sonar) that stopped working (doesn’t respond to power on, power led does not turn on) and opening it to look for the typical signs of failure I see an L7818 voltage regulator in TO-...
0
votes
1answer
64 views

Replacement IC for CD4054 [closed]

I'm looking for replacement IC for CD4054, but I can't find any other part that would work like CD4054 in level shifting. What I would need (from CD4054 description): The CD4054B may also be utilized ...
0
votes
1answer
956 views

Is it safe to rebuild my laptop battery pack? [closed]

this is my first question on this website, so please excuse me if I did not follow the guidelines correctly. I have an Alienware 17 R1 (2014) and have been looking into rebuilding its laptop battery ...
-3
votes
3answers
129 views

replacement of JCS2N65F TRANSISTOR MOSFET REGULATOR FOR TV HAIER [closed]

What is the Replacement of JCS2N65F TRANSISTOR MOSFET REGULATOR FOR AFTRON TV HAIER we are in Afghanistan I attempt to much to find but I am failed?
-2
votes
1answer
837 views

Replacement of li po battery with li ion battery [duplicate]

Is it possible to replace a battery for headphones? I would like to replace a 052030 li po battery with a Nokia BL-5C Lithium Ion battery. The li po battery is rated at 130 mAh with 3.7v. The Lithium ...
-1
votes
1answer
203 views

Could I replace headphones NIMH battery with Lithium Ion phone battery of the same voltage?

Is it possible to replace a battery for headphones? I would like to replace a 052030 li po battery with a Nokia BL-5C Lithium Ion battery. The li po battery is rated at 130 mAh with 3.7v. The Lithium ...
0
votes
2answers
73 views

Replace lamp in old amplifier

I am trying to replace a fried lamp in my very old amplifier (a Dual CV 1280 Integrated). As I essentially only use the mode that is indicated by the fried lamp, I thought I could just switch it with ...
0
votes
2answers
48 views

Replace in-series incandescent lamps in a makeup mirror with LEDs

This is my first post here. My wife uses a makeup mirror which has 10 x BA9s in series. Each lamp is 3W 24V and since we are in Europe they run on AC 230V nominally (reading off a multimeter is ...
0
votes
1answer
102 views

Replacing half wave tube rectifier with capacitor diode's in series

Very inexperienced. I am a HAM, I just got a HA-10 amplifier that has been modified. The half wave tubes were replaced with a string of Z5U .01 ceramic caps in parallel with 1M ohm resistors and ...
3
votes
3answers
1k views

Replace BSS138 with AO3400A in level shifter circuit

I have to use level shifter circuit to interface MAX31855 with Arduino running on 5V. I found easy to build level shifter circuit at SparkFun website. It is using BSS138 (datasheet) which I don't ...
0
votes
0answers
224 views

Help needed with over discharge circuit on LifePo4 12V car battery replacement

I'm putting together a LifePo4 battery pack with the intention of replacing the 12V lead acid battery in my 4WD. So far, what I've got is the following. 4 x 10 Ah LifePo4 batteries (38120 Headway) in ...
3
votes
2answers
230 views

Looking for replacement or datasheet of this component

I have a burned diode. (I fortunately found an exact same component in the circuit elsewhere to take a photo.) It says 132Y or ...
0
votes
1answer
77 views

Replace button by a component/circuit in 555 diagram

I need your help im crazy with this, i already tried many ways to do it, i need to replace the push button in this circuit by a component or circuit to be activated for a signal of 5 v such as a ...
0
votes
1answer
220 views

Swapping old capacitors for modern caps

I am trying to repair/refurbish an old Farnell L30d power supply, 0 - 30v and current limiting to 2 amps. There are two caps inside, one of which has blown. The caps are Hunts 3132A. Hunts no longer ...
0
votes
1answer
111 views

Help looking for an 220V AC transformer replacement [closed]

My old Philips MC-M250 stereo transformer has died after a power surge. I can't find spares so I'm looking for some compatible replacement. I found a power board circuit in the service manual. AC is ...
2
votes
2answers
140 views

Need help identifying this fuse resistor

(hobbyist here, go easy :P) Due to a loose wire hitting something, I busted my 12v 3.2amps 38 watts PSU and the magic smoke came out. Apparently a fuse popped and ...
1
vote
2answers
62 views

shift whole design in Xillinx FPGA

How can I shift whole my design using ISE(FPGAditor,plan ahead,..) to new placement? I want to no change in routing but change only in placement. Thanks.
0
votes
2answers
2k views

Is it dangerous to continue to remove a slightly punctured phone battery?

I have been trying to replace the phone screen on a Galaxy S7, and therefore had to remove the battery in the process. While doing so, I saw a tiny spark and felt a weird smell. I can't see any damage ...
8
votes
2answers
775 views

Can I fix my monitor? [closed]

I have a monitor that is no longer working. It had an intermittent problem where it would go "pop", the black out for a little while, then come back on. Then recently it went "POP" a little louder, ...
2
votes
1answer
98 views

How to replace TTL PROMs in a design operating at 20MHz

I am attempting to come up with a reasonable way of implementing a design that was intended for cheap computer applications in the 1980s and which was originally designed to use a pair of TTL PROMs (a ...
0
votes
1answer
46 views

Can I replace a NUP2105L voltage suppressor with a NUP3105L?

Someone gifted me a device to read electronic control units from cars and trucks. They gave it to me because they don't use it and they have also removed some components from it to fix another device. ...
0
votes
2answers
1k views

Finding replacement for transistor, what to look for [closed]

I have a schematics that uses the BS270 FET transistor, but I want to know what to do if one is not available or one wants to adapt the schematics to a different transistor What quantities should I ...
1
vote
2answers
789 views

Replacing cells in laptop battery

I successfully opened the battery of my laptop without damaging the case, and now, I want to replace the worn out batteries (2600mAh) with more powerful ones (3200mAh). I know the risks of working ...
2
votes
2answers
468 views

High bitrate IR receiver (TSOP7000 replacement)

After a many days of research I turned to stack overflow once again to help me. I'm looking for High speed IR receiver circuit for laser-tag weapon. Requirements are High noise cancelation, high ...
0
votes
0answers
190 views

Altium Designer 16 - Problem Flipping

I'm using Altium Designer 16 and the Flip command simply doesn't work (I'm talking about the PCB environment here). I've set my hotkeys to system default, and when I have the component floating on my ...
-2
votes
2answers
86 views

Hyperfast Recovery Diodes replacement [closed]

Can I replace one RHRP15120 diode with two U1560 DIODES IN SERIES used in an inverter filtering circuit without affecting the behavior of the circuit?
3
votes
2answers
192 views

Advice to replace a discontinued battery [closed]

I'm looking for advice to how to replace a Duracell TR163 mercury battery in an old synthesiser I have (Oberheim OB-1 if anyone is interested). The battery is no longer available, at least not in the ...
1
vote
1answer
142 views

What equivalent series resistance (ESR) capacitor should I replace bad one with?

I've got a bad clock capacitor in my original xbox that I'm trying to replace. It's a 1F 2.5V cap however, I'm not sure what Equivalent Series Resistance (ESR) the new cap should be. I see they sell 1 ...
0
votes
0answers
67 views

What comparator is compatible with OPA2132?

I've designed a circuit but realized now - when the 200+ boards finally arrived - that I've made a mistake. Long story short: I made the prototype on a breadboard, using OPA2132 (because that's what ...
3
votes
1answer
801 views

Looking for a suitable transistor for a simple circuit - 50 y/o Junghans clock repair

Trying to find if there is a suitable commonly available replacement transistor for a small circuit card on a Junghans W.707 clock movement (about 50 years old) Here's a picture of the whole thing ...
0
votes
0answers
383 views

How to identify replacement transformer?

I have a DVD player that is apparently working fine but the power supply makes a loud whining noise. The noise comes from, or from very close to the transformer. Upon close inspection, I see that ...
-1
votes
2answers
602 views

Can I replace 820uF 250v with 1000uF 200v capacitor [closed]

I have 820uF 250v two capacitors in my power supply board. Its not working correctly and giving low voltage in the following form Expected voltage - Getting voltage 24v to 23.2v 12v to 11.4v 5v to 4....
0
votes
0answers
90 views

Mysterious component uniting separated Grounds

I can't find a datasheet for this component, i've looked everywhere... RA20 66DR (could be RA2D or RA2O, same results, no datasheets..) This little fellow is cracked and its DC resistance ...
5
votes
2answers
535 views

Replacing an old capacitor

I've managed to blow a capacitor while doing maintenance on my 1967 electric organ. It's a 80uf 25V. I've done some searching and found that I can replace it with one that has a higher voltage rating ...
0
votes
2answers
383 views

Looking for a replacement part; need help finding from photo [closed]

I blew out a part in my dad's Fender Chorus guitar amplifier several years ago. I didn't ever get around to fixing it for him, no clue why, but I really should. Problem is I can't find this part or ...
0
votes
1answer
123 views

Having a hard time identifying some FET's in a blown amplifier [closed]

I'm trying to repair an amp thats protection light stays on full time. Using the a multi meter I've determined the problem to be 2 large FET's on the power supply side of the circuit and 2 smaller ...
2
votes
5answers
957 views

Replacing RJ45 connector with another type connector

I am looking for a replacement for an RJ45 panel mount connector. Can I use any standard connector (picture below) for connecting Ethernet networks? I know about cable impedance matching but I was ...