PCB for DC trap/blocker/filter for toroidal transformers (toroids), US $10.00 – Picture 0

PCB for DC trap/blocker/filter for toroidal transformers (toroids), US $10.00 – Picture 1

PCB for DC trap/blocker/filter for toroidal transformers (toroids), US $10.00 – Picture 2

Pcb For Dc Trap/blocker/filter For Toroidal Transformers (toroids)

US $10.00

Plovdiv, default, Bulgaria
Mar 7th

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Nowadays the AC mains network is heavily polluted by various domestic appliances, industrial electrical consumers etc. This can lead to buzzy toroidal transformers (especially the power ones). Proposed DC trap (blocker, filter) will remove or at least lower the buzzing. Schematic is similar to this one used in well known Vladimir Shushurin's Lamm-1 amplifier. An article with in-dept explanation of how DC blockers work can be found on Rod Elliot's site (http://sound.westhost.com/articles/xfmr-dc.htm). Dimensions of PCB: 88x94 mm. PCB thickness: FR4 2 mm. Copper thickness: 70 um (2oz). Surface finish - Nickel Gold (ENIG). It is one-layer design with solder mask coating on top and bottom layer for best durability. Silk screen with parts layout is placed on the top of the PCB. PCB has following abilities: - Diodes with 3 different bodies can be mounted on it - DO-201, TO-220 or rectifier blocks. - Electrolytic capacitors can be radial types with lead spacing 7.5 mm. or snap-in with lead spacing 10 mm. and max. outer diameter 35 mm. - Resistor R1 can be 5 or 10W rated power with lead spacing 28 or 53 mm. - Bypass capacitor C3 is WIMA MKS4 400VAC (lead spacing 22.5 mm.) or similar. - Two MOLEX 3-terminal connectors for AC input/output. All parts used are easily obtainable from big supplier stores (Mouser, Farnell, Digi-Key etc.) or via e-bay. Note: the listing is for PCB only - pictures of assembled device is for information purposes only! The package will contain: - PCB: 1 pcs. Detailed schematic, Parts List and instruction for building will be sent via e-mail immediately after payment, so please make sure a working e-mail address is provided along with PayPal transaction. I always ship with Registered Airmail, so tracking number will be sent. Combined shipping with other my items is welcome - just use "ask a question" at the bottom of the page or "request a total from seller".

Condition:

New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). 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. See the seller's listing for full details. ...

Country of Manufacture

Bulgaria