Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old February 4th 05, 11:20 PM
Steven Fritts
 
Posts: n/a
Default Discriminator tap for BC895XLT Needed

Can someone tell me the proper tap off procedure for the BC895? I have
found-I think-the correct tap off point but the audio is severely
affected on speaker output if I feed it to a sound card.

Steve
  #2   Report Post  
Old February 5th 05, 07:22 AM
Brengsek!
 
Posts: n/a
Default

On Fri, 04 Feb 2005 23:20:24 GMT, (Steven Fritts)
wrote:

Can someone tell me the proper tap off procedure for the BC895? I have
found-I think-the correct tap off point but the audio is severely
affected on speaker output if I feed it to a sound card.


According to
http://www.discriminator.nl/ic/ it should be pin 9 of the
MC13371. Did you tap the right point?

--
Cabin crew: yellow door selectors automatic
  #3   Report Post  
Old February 5th 05, 08:30 PM
Steven Fritts
 
Posts: n/a
Default




not sure, but THANK YOU for the info!!!
Do I need to use any dropping resistor or make up a network to isolate
it from the sound card input impedance??


On Sat, 05 Feb 2005 08:22:13 +0100, Brengsek! wrote:

On Fri, 04 Feb 2005 23:20:24 GMT, (Steven Fritts)
wrote:

Can someone tell me the proper tap off procedure for the BC895? I have
found-I think-the correct tap off point but the audio is severely
affected on speaker output if I feed it to a sound card.


According to
http://www.discriminator.nl/ic/ it should be pin 9 of the
MC13371. Did you tap the right point?

--
Cabin crew: yellow door selectors automatic


  #4   Report Post  
Old February 5th 05, 10:57 PM
Brengsek!
 
Posts: n/a
Default

On Sat, 05 Feb 2005 20:30:22 GMT, (Steven Fritts)
wrote:

Can someone tell me the proper tap off procedure for the BC895? I have
found-I think-the correct tap off point but the audio is severely
affected on speaker output if I feed it to a sound card.


According to
http://www.discriminator.nl/ic/ it should be pin 9 of the
MC13371. Did you tap the right point?


not sure, but THANK YOU for the info!!!
Do I need to use any dropping resistor or make up a network to isolate
it from the sound card input impedance??


I always use a resistor between 5k6 and 15k, but that's merely to
protect the discriminator output from short circuiting during
(un)plugging.

Rene

--
Cabin crew: yellow door selectors automatic
  #5   Report Post  
Old February 6th 05, 02:40 AM
Steven Fritts
 
Posts: n/a
Default

THANK YOU!


Steve

On Sat, 05 Feb 2005 23:57:27 +0100, Brengsek! wrote:

On Sat, 05 Feb 2005 20:30:22 GMT, (Steven Fritts)
wrote:

Can someone tell me the proper tap off procedure for the BC895? I have
found-I think-the correct tap off point but the audio is severely
affected on speaker output if I feed it to a sound card.

According to
http://www.discriminator.nl/ic/ it should be pin 9 of the
MC13371. Did you tap the right point?


not sure, but THANK YOU for the info!!!
Do I need to use any dropping resistor or make up a network to isolate
it from the sound card input impedance??


I always use a resistor between 5k6 and 15k, but that's merely to
protect the discriminator output from short circuiting during
(un)plugging.

Rene

--
Cabin crew: yellow door selectors automatic




  #6   Report Post  
Old February 6th 05, 08:14 AM
Brengsek!
 
Posts: n/a
Default

On Sat, 05 Feb 2005 23:57:27 +0100, Brengsek! wrote:

Do I need to use any dropping resistor or make up a network to isolate
it from the sound card input impedance??


I always use a resistor between 5k6 and 15k, but that's merely to
protect the discriminator output from short circuiting during
(un)plugging.


To be precise, I should write that I use a resistor to protect the
receiver's discriminator when the output is short circuited during
(un)plugging.

--
Cabin crew: yellow door selectors automatic
Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
VOA Delano: 1. Uses Rhombics (still!) 2. Staff needed instructions on not getting fried! http://HireMe.geek.nz/ Shortwave 0 October 19th 04 08:07 AM
60 meter mod info needed... Richard Heindel Equipment 0 June 26th 04 04:12 PM
Needed "data processing magazine" also any of same topic are from 50's 60's 70's such as "Datamation", ACM conference proceedings, Early AFIPS, and others. ed sharpe Equipment 0 June 2nd 04 06:57 AM
WTB: Needed: charger(s) for Motorola Spirit 2-way radio(s) JAMEZY NJ Scanner 0 March 1st 04 04:18 PM
Manual Needed for NCG 10/160M AKA National (Panasonic) RJX-810D W4UDX Equipment 0 August 17th 03 04:13 PM


All times are GMT +1. The time now is 05:06 AM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017