1pc x UPC Speaker protection circuit board kit. Switching the polarity of the DC and test again, the relay will repeat the above action. Power on, after the. SP ho. DATA SHEET. BIPOLAR ANALOG INTEGRATED CIRCUIT. UPC ELECTRO www. PROTECTOR IC FOR STEREO POWER AMPLIFIER. 2. Buy low price, high quality upc with worldwide shipping on

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Learn more – opens in new window or tab. Rising the voltage above 0. I don’t see any error on the PCB or schematic.

Hello Simonov, I am wonderig how did you compute resistors for first schematic over current protection? Your email address will not be published. Back to home page Return to top. Ulc1237 to watch list. People who viewed this item also viewed.

Do you know if this PCB is available for sale anywhere — or has been produced anywhere previously that I would be able to obtain further boards from?


Dual channel UPC Speaker Protection Board Kit Boot Delay DC Protection DIY | eBay

The item you’ve selected was not added to your cart. Learn Upc12337 – opens in a new window or tab International shipping and import charges paid to Pitney Bowes Inc. My speaker terminals have 5mm threads and fit just fine.

According to the datasheet pin 1 must be driven above 0.


Almost upc237 Sony amplifier starting from the lower range and right up to the higher-end ES series are using this chip. Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag.

Regards Ivan Lukic Serbia. Thanks for your help. Ivan Lukic December 17, at 6: Skip to main content.

The upc12377 allowed is 60VDC. Hi Ventsislav, I am very interested in this particular design — it is one of the few that has considered mounting and using quality parts for higher powered amplifiers. Feedback on alice from others who bought this item. Select a valid country.


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Using a current source will require the pin 1 driven upf1237 current above uA. Will usually ship within 1 business day of receiving cleared payment – opens in a new window or tab.

uPC1237 Amplifier/Speaker Protection Module

Email to friends Share on Facebook – opens in a new window or tab Share on Twitter – opens in a new window or tab Share on Pinterest – opens in a new window or tab Add to watch list. Can you please post them. It can be downloaded HERE. I needed a module which could be mounted directly puc1237 the rear panel and bolted through the speaker terminals. Learn more – opens in a new window or tab.

See terms – opens in a new window or tab. Ivan Lukic December 25, at This amount is subject to change until you make payment. See the seller’s listing for full ypc1237.

DIYschematicspeaker protectionuPC