Home |
Search |
Today's Posts |
#11
![]() |
|||
|
|||
![]()
In article ,
(Michael Black) writes: In some cases, it might be intriguing to build a single channel FM BCB receiver. Build it like a ham band converter, with plenty of tuned circuits at the fronte end, little or no RF amplification, and a good mixer. Being fixed tuned, one could optimize it for that frequency, and not worry about tracking, or the problems of ganging a number of tuned circuits. For the local oscillator, one could go with a crystal oscillator chain. Going to www.KitsAndParts.com by Dieter Gentzow, W8DIZ, you can find the old Motorola MC3362P (2 for $4) which is a complete FM receiver IC. There's a full Motorola datasheet there with application data. A one-IC FM receiver for headphones. For some audio power output, he has National LM380s at 4 for $5. For an RF preamp, he has Fairchild J310 J-FETs at 12 for $4. There's also a respectable number of Micrometals toroid cores for IF and RF filtering. Datasheets for all except a full info range on the Micrometals cores (which some think are made by Amidon). www.micrometals.com for full core information. If the MC3362 is too much or too little, Dieter has 612 Gilbert cell ICs for mixer-oscillator applications and MC1349 gain blocks (its a slightly higher gain version of MC1350) for the IF. A fairly good supplier of oldies but goodies in semiconductors and toroid cores. LHA retired (from regular hours) electronic engineer person |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Assistance with Ham Projects | Dx | |||
Assistance with Ham Projects | Dx | |||
Publications for Ham Homebrew Projects ?? | Homebrew | |||
1.2GHz Antena projects wanted | Antenna | |||
FYI: Antanna Projects Roundup | Antenna |