R
R C
- Jan 1, 1970
- 0
The RadioShack HTX-200 uses a PTT circuit of the following design
(forgive my ascii art):
barrel - /|
----|------------/-----------/ |
=== | \ 22k ohm | |
----|------\ ---/-----------\ |
tip \ + \|
1/8" plug Mic
switch
Relay would be simplest, but I'd prefer something that doesn't make
noise. I was thinking of trying an analog switch (I have a 4052 in the
parts box somewhere). Any suggestions? Am I missing a really simple
answer?
Thanks,
R C
(forgive my ascii art):
barrel - /|
----|------------/-----------/ |
=== | \ 22k ohm | |
----|------\ ---/-----------\ |
tip \ + \|
1/8" plug Mic
switch
Relay would be simplest, but I'd prefer something that doesn't make
noise. I was thinking of trying an analog switch (I have a 4052 in the
parts box somewhere). Any suggestions? Am I missing a really simple
answer?
Thanks,
R C