Hello.
I’m building my fourth amp, It’s my latest Hobby. Something I’m unhappy about is the connection from the amp to the speaker.
All the kits I’ve looked at use a 1/4” jack plug which can easily be unplugged or a poor connection will fry the output transformer. The Champ I’m building I connected a pair of wires direct an ran them through a rubber grommet.
I then thought about if I sell it and the buyer wants a jack plug. So I fitted the jack plug, soldered a pair of wires to it and ran them through the hole. It’s now a simple job to remove the back and snip the wires.
In the pic I have lodged a pair of plastic tweezers under the wires so you can see where I’m on about.
Speaker connection.
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Speaker connection.
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pompeiisneaks
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Re: Speaker connection.
Why would you want wires coming out of the amplifier like that? Is this more for a more 'permanent' connection to the speaker inside the combo? In that case then just a grommet would do. I think commonly people make them jacks because it allows you to disconnect the speaker and connect to an external cabinet instead, but your method precludes that in the future. If you're confident that doesn't matter, and you want to ensure it never comes undone, you could look into a two pin screw terminal style connection that can handle the current but makes the connection more stable/semi permanent.... But you'd still need to build some kind of small second connector that goes to a 1/4" jack style one if you ever wanted to use it with an external cab...
~Phil
~Phil
tUber Nerd!
Re: Speaker connection.
It feels like a solution in search of a problem.
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turbofeedus
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Re: Speaker connection.
What about a locking 1/4” jack?
https://www.neutrik.com/en/neutrik/prod ... ssis-jacks
https://www.neutrik.com/en/neutrik/prod ... ssis-jacks
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harleytech
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Re: Speaker connection.
I've never had a 1/4" speaker jack come loose or fall out...
Re: Speaker connection.
Hello.
Thank you for your replies. I can explain, long story alert. Skip the next paragraph unless you can’t sleep, sitting on the toilet or at work.
When I decided to Learn to play a Guitar, I looked at all the gear that’s available. I was born in 1963. My interest in electronics at the age of 13 came at a time when the rubbish dumps were full of valve (Tube to my American Friends) radios and Televisions. I was witness to Valves and Transistor circuits before the mighty Microchip completely took over. Thirty eight years later I discover Valves are still in use I was well pleased to find another interest. I’ve built a Champ 5F1 kit and use it every day. I met a Luthier in the Pub a few months ago. He was showing someone a Guitar he’d recently made. I mentioned I was learning to play (He gave me THAT look). When I mentioned I’d built my own amp, I had his immediate attention. He wants to build custom cabs to match the guitars and I’m making the amps.
I was building my fourth amp and was looking for improvements as I go. All the amps so far have been combo’s. I’m not happy with a jack plug in the back. So far I’m building Kits with pre punched chassis and all the parts required. The jack socket is in the kit already.
My idea is to hard wire the amp to the speaker but if a Customer saw it and wants a jack plug for whatever reason, all I need to do is remove the back cover and cut the two wires going out. No soldering or modification required. That’s the reason for my Idea which I hope someone else will find useful
Thank you for your replies. I can explain, long story alert. Skip the next paragraph unless you can’t sleep, sitting on the toilet or at work.
When I decided to Learn to play a Guitar, I looked at all the gear that’s available. I was born in 1963. My interest in electronics at the age of 13 came at a time when the rubbish dumps were full of valve (Tube to my American Friends) radios and Televisions. I was witness to Valves and Transistor circuits before the mighty Microchip completely took over. Thirty eight years later I discover Valves are still in use I was well pleased to find another interest. I’ve built a Champ 5F1 kit and use it every day. I met a Luthier in the Pub a few months ago. He was showing someone a Guitar he’d recently made. I mentioned I was learning to play (He gave me THAT look). When I mentioned I’d built my own amp, I had his immediate attention. He wants to build custom cabs to match the guitars and I’m making the amps.
I was building my fourth amp and was looking for improvements as I go. All the amps so far have been combo’s. I’m not happy with a jack plug in the back. So far I’m building Kits with pre punched chassis and all the parts required. The jack socket is in the kit already.
My idea is to hard wire the amp to the speaker but if a Customer saw it and wants a jack plug for whatever reason, all I need to do is remove the back cover and cut the two wires going out. No soldering or modification required. That’s the reason for my Idea which I hope someone else will find useful
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sluckey
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4 others liked this
Re: Speaker connection.
Maybe do this. Internal speaker plays until you plug in an external speaker. You don't have to do anything.
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Stevem
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Re: Speaker connection.
Yes, I have never had a 1/4" speaker plug just pull out of the amp in the thousand's of gigs I have played!
The shorting type jack as shown is a way to protect against that pull out issue , but you can also have OT killing open circuit by having the speaker(s) blow!
What I do to protect against that is wire in a 250 ohm 10 watt resistor across the jack.
This arrangement consumes little if any power and in conjunction with a shorting type jack your then 100% safe!
The shorting type jack as shown is a way to protect against that pull out issue , but you can also have OT killing open circuit by having the speaker(s) blow!
What I do to protect against that is wire in a 250 ohm 10 watt resistor across the jack.
This arrangement consumes little if any power and in conjunction with a shorting type jack your then 100% safe!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Re: Speaker connection.
First: Merry Christmas.
Second: Thank you for your kind replies. On reflection I shall wire the speaker through a jack plug.
Sometimes I think too hard.
Second: Thank you for your kind replies. On reflection I shall wire the speaker through a jack plug.
Sometimes I think too hard.
Re: Speaker connection.
On touring amps and my bass amps I like to use locking 1/4" jacks to make damn sure the cord stays in the jack.
I have never had a jack just come out only when some damn fool was messing around my speaker or their foot some how gut it's way in the speaker cord path and pulled it out.
I have never had a jack just come out only when some damn fool was messing around my speaker or their foot some how gut it's way in the speaker cord path and pulled it out.