I always chuckle when guys show me their custom designed keying circuit and its so freakin over complicated. I love the keying circuits that we use like you show! So simple always works and easy to fix
I agree man lol.....you can use a emitter follower but now you have 2 transistors that can go bad lol. Instead of using a coupling capacitor haver you ever took 2 wires and twisted them together about 7 or 8 times real tight and split it at the end and use that instead lol....crazy man. I have a circuit wrote down that gives the relay a POS instead of a neg which works well if your trying to do something crazy like a 3 way stage to stop the back feeding due to the transistors working even when the switch is off for that relay.
nice. that is about the most reliable keying circuit. big relay go with tip120 or similar. diode also can be 1N60 or 1N34A . there is a Japan one 1S xxx that works . that circuit works 24V with 24V coil relay. SSB delay is across the relay coil. I used opto cuppler circuit. even one with MJE 3055T transistor gives +12V when keyed. take bias off that and relay coil to ground. the 2N2222A I have are the small metal ones. I tried a FET before was so sensitive it stayed keyed or buzzed with strong signal nearbuy. got a old tube amp that has a small tube to key relay . just add small LED across relay and you have a TX light. 73's
Very good point bud! Yeh I have some metal case 2222a I want to use sometime. A neat ssb delay is delaying on bias with small uf cap that works very very well
Companies who build amps should always add for side band. Lots of CB users like to talk on SSB. They could do that for us. But they never do. Its so crazy.
I always chuckle when guys show me their custom designed keying circuit and its so freakin over complicated. I love the keying circuits that we use like you show! So simple always works and easy to fix
I agree man lol.....you can use a emitter follower but now you have 2 transistors that can go bad lol. Instead of using a coupling capacitor haver you ever took 2 wires and twisted them together about 7 or 8 times real tight and split it at the end and use that instead lol....crazy man.
I have a circuit wrote down that gives the relay a POS instead of a neg which works well if your trying to do something crazy like a 3 way stage to stop the back feeding due to the transistors working even when the switch is off for that relay.
You explain it where most can understand.
Thanks bud!
Why i want you to do work for me. Why im on the list. 🎉🎉🎉Smart man rite here. 👌
Very kind of you bud!
You should publish a book on building and repairing amps
Uuuuuuuuuum 🤔
@8:25 Glass diode
nice. that is about the most reliable keying circuit. big relay go with tip120 or similar. diode also can be 1N60 or 1N34A . there is a Japan one 1S xxx that works . that circuit works 24V with 24V coil relay. SSB delay is across the relay coil. I used opto cuppler circuit. even one with MJE 3055T transistor gives +12V when keyed. take bias off that and relay coil to ground. the 2N2222A I have are the small metal ones. I tried a FET before was so sensitive it stayed keyed or buzzed with strong signal nearbuy. got a old tube amp that has a small tube to key relay . just add small LED across relay and you have a TX light. 73's
Very good point bud! Yeh I have some metal case 2222a I want to use sometime. A neat ssb delay is delaying on bias with small uf cap that works very very well
Companies who build amps should always add for side band. Lots of CB users like to talk on SSB. They could do that for us. But they never do. Its so crazy.
So how do you key a texas star 500v without using rf but instead using the relay on a ic 7300 ?
Yo
Waving a hand
27,000Khz or 27 mhz..either way...Ka5wpl
There you go :)