Hi, any idea how to make the beep longer in a JFK with PA-338 board?
Thanks and 73,
Ralf
JFK PA-338 board Roger Beep delay
- 13EL121
- Radio Addict
- Posts: 618
- Joined: 16 Sep 2008, 20:55
- Call Sign: 13DA121
- Location: Germany
- Contact:
- dt307
- Top Poster
- Posts: 1250
- Joined: 05 Sep 2014, 16:15
- Call Sign: 163dt307
Re: JFK PA-338 board Roger Beep delay
change value of c166
http://78roger.free.fr/president/schema/jfk(pc-338).jpg
schematic You do not have the required permissions to view the files attached to this post.
163dt307-chris
“I fear the day that technology will surpass our human interaction. The world will have a generation of idiots.”
― Albert Einstein
“I fear the day that technology will surpass our human interaction. The world will have a generation of idiots.”
― Albert Einstein
- 13EL121
- Radio Addict
- Posts: 618
- Joined: 16 Sep 2008, 20:55
- Call Sign: 13DA121
- Location: Germany
- Contact:
Re: JFK PA-338 board Roger Beep delay
Thank you Chris! Will give it a try.
- 13EL121
- Radio Addict
- Posts: 618
- Joined: 16 Sep 2008, 20:55
- Call Sign: 13DA121
- Location: Germany
- Contact:
Re: JFK PA-338 board Roger Beep delay
Maybe it looks like C100 0.047? The schematic is not very clear.
- 13EL121
- Radio Addict
- Posts: 618
- Joined: 16 Sep 2008, 20:55
- Call Sign: 13DA121
- Location: Germany
- Contact:
Re: JFK PA-338 board Roger Beep delay
Found it! C156 is the cap for Roger beep delay. Thanks for your help Chris!
- dt307
- Top Poster
- Posts: 1250
- Joined: 05 Sep 2014, 16:15
- Call Sign: 163dt307
Re: JFK PA-338 board Roger Beep delay
all good happy to help ..... most have a cap in series with the beep on and off switch
163dt307-chris
“I fear the day that technology will surpass our human interaction. The world will have a generation of idiots.”
― Albert Einstein
“I fear the day that technology will surpass our human interaction. The world will have a generation of idiots.”
― Albert Einstein
- 13EL121
- Radio Addict
- Posts: 618
- Joined: 16 Sep 2008, 20:55
- Call Sign: 13DA121
- Location: Germany
- Contact:
Re: JFK PA-338 board Roger Beep delay
Yes same as Superstar 360FM or 3900, but I was not able to find it in the schematic. You have seen what I have not seen... The beep switch in the schematic.
I doubled the value of the Tantal cap and the beep sounds like a Jackson now.
I doubled the value of the Tantal cap and the beep sounds like a Jackson now.