G
[email protected]
- Jan 1, 1970
- 0
I am trying to convert a pushbutton to a toggle switch. The circuit is
working fine for a few tests, then I turn off the battery, come back
the next day and it's not working any more. Replacing the transistor
Q1 fixed it once but now it's dead again which makes me think that
there is some underlying problem.
The light bulb is draining 60mA at 12.5V.
.---------o-----------------------------------.
| .-. | |
| | |10k .-. --- +13V
Q2 | | | ( X ) -
\| '-' '-' |
2N2222 |-------o---------------------o | |
<| | ___ | | ===
| | 2N2222 .--|___|----)------o GND
| \| | | |
| |-------o 330k | |
/+\ Volt <| Q1 | | ||-+
( )meter | | | ||<-
\-/ | | '---||-+ NTE67
| | | |
| .-. .-. |
=== | | | | ===
GND 4M| | | |10k GND
'-' T '-'
| --- |
o--o o----'
|
---
--- 220nF
|
|
===
GND
(created by AACircuit v1.28.6 beta 04/19/05 www.tech-chat.de)
working fine for a few tests, then I turn off the battery, come back
the next day and it's not working any more. Replacing the transistor
Q1 fixed it once but now it's dead again which makes me think that
there is some underlying problem.
The light bulb is draining 60mA at 12.5V.
.---------o-----------------------------------.
| .-. | |
| | |10k .-. --- +13V
Q2 | | | ( X ) -
\| '-' '-' |
2N2222 |-------o---------------------o | |
<| | ___ | | ===
| | 2N2222 .--|___|----)------o GND
| \| | | |
| |-------o 330k | |
/+\ Volt <| Q1 | | ||-+
( )meter | | | ||<-
\-/ | | '---||-+ NTE67
| | | |
| .-. .-. |
=== | | | | ===
GND 4M| | | |10k GND
'-' T '-'
| --- |
o--o o----'
|
---
--- 220nF
|
|
===
GND
(created by AACircuit v1.28.6 beta 04/19/05 www.tech-chat.de)