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Search: Posts Made By: Hitto
Forum: General Capacitor Questions & Issues 01-23-2021, 03:33 PM
Replies: 5
Views: 1,106
Posted By Hitto
Re: Fake Nichicon capacitors with almost-perfect sleeve?

Fake capacitors will measure perfectly when unused but then decade rather quickly.

About genuine (and very good) capacitors having a copper core to their leg, this is true. Panasonic FR capacitors...
Forum: General Capacitor Questions & Issues 01-10-2021, 03:10 PM
Replies: 5
Views: 1,106
Posted By Hitto
Re: Fake Nichicon capacitors with almost-perfect sleeve?

I don't know if it is available on eBay but this part is pretty much everywhere.

This is supposed to be a Nichicon “VY” series.
Forum: General Capacitor Questions & Issues 01-09-2021, 03:07 PM
Replies: 5
Views: 1,106
Posted By Hitto
Fake Nichicon capacitors with almost-perfect sleeve?

Fake Nichicon capacitors with an almost-perfect sleeve?

Same font, perfect logo, same size of the sleeve. The air vent looks okay. The diameter of the capacitors is correct per datasheet.

It...
Forum: General Capacitor Questions & Issues 12-12-2020, 05:09 PM
Replies: 5
Views: 1,099
Posted By Hitto
Re: Difficulty trying to match ESR of a replacement capacitor

Chemicon KXJ is a good replacement. Being 12.000H/105°C, it will outlast that TV. Do not worry about dissipation factory for the reasons written above.
Forum: General Capacitor Questions & Issues 12-12-2020, 05:00 PM
Replies: 3
Views: 813
Posted By Hitto
Re: HELP: 330uF tantalum capacitors

As stj wrote.

When it comes to tantalums use parts which are at least double the required voltage because tantalums do not fail silently.

Very good tantalums, both 330uF and 6.3V are 6TPE330MAP...
Forum: General Capacitor Questions & Issues 12-12-2020, 04:52 PM
Replies: 5
Views: 641
Posted By Hitto
Re: Callins capacitor?

They looks to be bakelite capacitors just like Roederstein's EKU.

They are fancy and they are vintage, with a diameter really insane for a capacitance of 300uF (26mm). Maybe due to their low...
Forum: General Capacitor Questions & Issues 09-05-2020, 07:36 AM
Replies: 6
Views: 1,791
Posted By Hitto
Re: Looking for the datasheet of this 5.6uF Elna capacitor

@Momaka: This is a good idea as this one measures a bit badly (around 2Ωs of E.S.R.) and quite high loss. Tipically this kind of capacitor as a E.S.R. inferior to 1Ω (measured other series took from...
Forum: Troubleshooting Power Supplies and Power Supply Design 07-19-2020, 06:08 AM
Replies: 44
Views: 4,219
Posted By Hitto
Re: $20 "500W" PSU From MicroCenter, how bad can it be?

Can you upgrade capacitors (from 1000uF to at least 2200uF) on the secondary to check how much ripple goes down? 250mV is absurdly high, too much even for quick tests.

Also 220uF on the primary...
Forum: General Capacitor Questions & Issues 07-06-2020, 03:54 PM
Replies: 29
Views: 4,634
Posted By Hitto
Re: Improving CRT geometry by upgrading capacitors

Another picture:
https://i.ibb.co/QJ1R69F/IMAGEZOOM.jpg

800x600 with a $20 VGA card.
For people who think that CRT is outdated technology. :)


There is room for higher resolution up to...
Forum: General Capacitor Questions & Issues 07-06-2020, 03:41 PM
Replies: 29
Views: 4,634
Posted By Hitto
Re: Improving CRT geometry by upgrading capacitors

I rely on a PCIe VGA card with direct VGA output.

By the way, the CRT is still working perfectly. Planning to find a bigger monitor and tune everything till the geometry is almost perfect.

...
Forum: General Capacitor Questions & Issues 06-23-2020, 05:17 AM
Replies: 11
Views: 1,914
Posted By Hitto
Re: Advice on replacing some mid80's caps

Samyoung capacitors are not related to Samsung. The SM series should be general purpose, so pretty much any replacement will perform well. Use a Panasonic FC if you want something better than an...
Forum: General Capacitor Questions & Issues 04-26-2020, 04:34 AM
Replies: 29
Views: 4,634
Posted By Hitto
Re: Improving CRT geometry by upgrading capacitors

I agree.

Too bad that time is passing and the plastics, even with very good monitors, are both yellowing and degrading. The age of the plastic material goes the point that you have to be careful...
Forum: General Capacitor Questions & Issues 04-15-2020, 01:25 PM
Replies: 6
Views: 1,791
Posted By Hitto
Looking for the datasheet of this 5.6uF Elna capacitor

I am looking for the datasheet of this (quite old) Elna capacitor. It is rated 5.6uF/50V, CE85° 0010 (S), the serie is CE-BP(LZ).

https://i.ibb.co/x5kV65R/elnacebplz.jpg

Thank you.
Forum: General Electronics Technical Discussion 04-15-2020, 01:19 PM
Replies: 16
Views: 1,157
Posted By Hitto
Re: Reuse the autotransformer of a 220-110V stepdown

40W should be enough as this unit will be used mainly for testing.

I have another one but it is sealed. Planning to open it with wires intact so you guys can check if it is indeed reusable without...
Forum: General Capacitor Questions & Issues 04-14-2020, 06:57 AM
Replies: 29
Views: 4,634
Posted By Hitto
Re: Improving CRT geometry by upgrading capacitors

Because the quality of the picture, its contrast, the blacks, the colours and the sharpness beats hands down the quality of any LCD I've encountered so far.

Obtaining a perfect geometry is howewer...
Forum: General Electronics Technical Discussion 04-13-2020, 01:27 PM
Replies: 16
Views: 1,157
Posted By Hitto
Re: Reuse the autotransformer of a 220-110V stepdown

Yes, it automatically switches between 110 and 220VAC.

This is a close-up of the unit:
https://i.ibb.co/k9WcsQ6/Close-Up.jpg

I was hoping to use the transformer without the circuit as the PCB...
Forum: General Electronics Technical Discussion 04-12-2020, 09:47 AM
Replies: 16
Views: 1,157
Posted By Hitto
Re: Reuse the autotransformer of a 220-110V stepdown

Judging by the connections, but I am not sure about blue wire:
https://i.ibb.co/Kyry2ZK/OUTPUTS.jpg
Forum: General Electronics Technical Discussion 04-12-2020, 09:19 AM
Replies: 16
Views: 1,157
Posted By Hitto
Re: Reuse the autotransformer of a 220-110V stepdown

The unit is quite generic and not available currently on eStores for a comparison.
The PCB is marked LLD57/040ASC.

FRONTAL:
https://i.ibb.co/th8wz0w/SCHEM02.jpg...
Forum: General Electronics Technical Discussion 04-11-2020, 03:57 PM
Replies: 16
Views: 1,157
Posted By Hitto
Reuse the autotransformer of a 220-110V stepdown

I would like to reuse the autotransformer of this device, which converts 220 to 110 and claims to be bidirectional.

This transformer has 0-220V inputs and 3 output wires. One goes to a diode in...
Forum: General Capacitor Questions & Issues 04-03-2020, 05:10 PM
Replies: 29
Views: 4,634
Posted By Hitto
Re: Improving CRT geometry by upgrading capacitors

I suspect it as well. My multi-meter is quite cheap though so I take its reading with a grain of salt and derate. Not that I would not derate nevertheless when it comes to delicate circuitry with...
Forum: General Capacitor Questions & Issues 04-02-2020, 03:05 PM
Replies: 3
Views: 908
Posted By Hitto
Re: Possibly rebranded Panasonic capacitors

I've used Würth capacitors (general purpose series) in the past and they seem to do their job.

They are quite cheap, so you can have fun with poly-modding at a convenient price.
Forum: General Capacitor Questions & Issues 04-02-2020, 02:52 PM
Replies: 29
Views: 4,634
Posted By Hitto
Re: Improving CRT geometry by upgrading capacitors

Other informations for the readers and the members of the forum.

Found a very old CRT monitor which effectively uses MKP capacitors for this exact section. It parallels four MKPs:...
Forum: General Capacitor Questions & Issues 03-22-2020, 08:53 AM
Replies: 13
Views: 1,425
Posted By Hitto
Re: Rubycon BXA genuine or not?

That one is not genuine for sure.
Rubycon capacitors do not have concentric lines on the bottom:

https://i.ibb.co/pr0h503/B.jpg

They measure decent though I would not use them in demanding...
Forum: General Capacitor Questions & Issues 03-16-2020, 04:06 PM
Replies: 5
Views: 860
Posted By Hitto
Re: Which diameter is this Hitachi capacitor?

Yes, they are 25mm! Thank you all.
Forum: General Capacitor Questions & Issues 03-16-2020, 04:05 PM
Replies: 13
Views: 1,425
Posted By Hitto
Re: Rubycon BXA genuine or not?

Rubycon BXA are for LED and inverters and they are radial, not axial. They are made for circuits with high frequencies and starts at 160V like written by R_J.

I suspect that the ones bought from...
Showing results 1 to 25 of 84

 
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