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воскресенье, 29 ноября 2015 г.

Review Demodulator coil quadrature 450 kHz & 455 kHz for FM IF Receiver

VARIABLE COILS Quadrature
7MC-8128Z Toko, 680uH + 180pF 455Khz Q100 The BEST https://www.ebay.com/itm/163922017104

This coil was tested, the signal was transmitted at 144 Mhz, 3 kHz deviation, 1 kHz modulation from Agilent / HP E4436B 3 GHz Signal Generator on Pin 1 IC MC3362.
The data were taken by an oscilloscope on Pin 13 IC MC3362, level 170mVRMS @ 1kHz

Coil Adjustable 455Khz similar TOKO 7MC-8128Z for Quadrature FM, IF Transformer.
For IC Receiver MC3361 MC3362 MC3363 MC13135 MC3359 MC3371 MC3372.



836AN-0137Z Toko Without capacitor

303LC1150 TOKO Inc вроде как SMD 6x6mm

5SVLC-0637BGT Toko

P5DJ Sumida

5PNR-2876Z Toko Need Capacitor 180 pF





LLCS-4828 TOKO  7mm on a side and 10mm high   455 KC  Q=70    150+5.PF 5% 20K:5K  BK/1 - Price eBay $1.3

A7LCS10740N Murata  7mm on a side and 10mm high   455 KC  Q=70    150+5.PF 5% 20K:5K  BK/1 - Price eBay $1.3

Specification (P-7SB/AM) (Part No.S01475941) Sumida 455kHz Q70 + Cap 180pF Price eBay $1.3



7BRE-7437Z(TOKO) QUAD COIL

A7MES–12597Z (TOKO)  non info

BV- 96HT 500-900uH, 120 + 30 turns , capacity 180 pF Q > 100 ( a 455 KHz @ 700 µH ) 10 mm - h 13 mm



BV- 114184  600-930uH, 50 + 100 turns ( 600 - 930 µH ) // 182 pF + 20 turns, resonance L+C 400 - 500 KHz coil Q > 80 ( @ 455 KHz @ 750 µH ) 7mm - h 7 mm




B-455-A-7-G internal capacitor 7mm
B-455-A-7-B internal capacitor 7mm
7MCS-1354Z

RMC-2A6597 HK Toko 10mm



B-455-H-10-G yellow 10mm, made of 30 + 120 turns and a 180pF internal capacitor

KY-40110 Mitsumi


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