• Home
  • News
  • Magazine
  • Shop
  • Subscribe now
  • Forum
  • Service

Search

Products

My Elektor

Log in

Email:

Password:

Remain logged in

Password forgotten?
Register

Shopping cart Shopping cart

Info Elektor Credits: 0

Home › Magazines › 2006 › July › DRM Receiver Upgrade

‹ previous
next ›

DRM Receiver Upgrade

-

Published in issue 356, July 2006

DRM Receiver Upgrade
The DRM Receiver described in the March 2004 issue of Elektor Electronics has proved very popular and many thousand of the receivers are already in the field. Its excellent design is both simple and inexpensive. In the best tradition of homebrew construction we have supported the receiver by publishing two add-ons to the basic design; an automatic preselector (11/04) and an automatic gain control (2/06).

Components

Resistors

R1,R4,R6,R14,R18,R20 = 1k

R2,R3,R8,R10-R13,R16,R17,R19 = 27k

R5 = 1M

R9 = 270k

R7 = 470

R15 = 100

Capacitors

C1,C3,C5-C14,C16,C19-C22 = 100nF

C2 = 100pF

C4 = 22pF

C15 = 10µF 16V radial

C17 = 45pF trimmer

C18 = 47µF 16V radial

Semiconductors

D1 = BB313 or 3 off BB112

D2 = 1N4001

T1 = BF245

T2,T3 = BS107, BS170

IC1 = NE612

IC2 = LM324

IC3 = 78L05

Miscellaneous

J1 = Jumper

CON1,CON2 = 2-way PCB terminal block, lead pitch 5mm

CON3 = 3.5mm jack socket

CON4,CON5 = pinheader or wires

CON6,CON7 = 1mm dia. solder pin

L1 = inductor former with core (Conrad Electronics # 516651) and ECW 0.3mm

L2 = 2µH2 fixed inductor

PCB, ref. 060140-1

Suggested kit supplier: www.geist-electronic.de

Ready built and tested units from: www.modul-bus.de

Click below to download a PDF copy of this article from Elektor magazine.

 

Downloads 
PDF Article (060140-UK.pdf)
10 Elektor Credits
PCB layout (060140-PCB.pdf)
10 Elektor Credits
 

Order from Elektor 
PCB, bare
060140-1
Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.

Subscribe now

Subscribe now
Subscribe now
Browse online
More

Subscribe to our free
E-weekly Newsletter!

Enter your Email address:

Follow Elektor

      

Act now!

> Become an Elektor Member

> Register for E-weekly

> To Elektor-plus.com

> Become a supporting company

> To FAQs

FAQ

Before submitting questions, review our FAQ section!

Bestseller

Microprocessor Design using Verilog HDL

This book is a practical guide to processor design in the real world. It presents the Verilog HDL in an easily digestible fashion and serves as a thorough introduction about reducing a computer architecture and instruction set to practice. 

More

Package Deals

Elektor Bundles

Check our Package Deals and save money! Discounts up to 19% now available!

More

Price Slashed

Elektor OSPV

This Open Source People Vehicle is perfect for factory halls, warehouses, hospitals, colleges, schools etc.

More

Elektor PCBs at 25% OFF

© 2012 Elektor•Feedback•Media Data•Disclaimer•General conditions•Sitemap•RSS