Hi
Can anyone point me to a link to calculation of the impedance seen by the plate of the power tube in push pull stage of class AB amp. I...
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How to calculate primary impedance of output transistor for class AB push pull stage?
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That can well be true, maybe the JJ like lower primary resistance. I did not try that!!!! I am too busy, when I have time, I am going to use the 8 ohm tape...
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I basically use one output transformer for all my amps. The Classic Tone Bandmaster/Vibrolux/Pro Reverb OT. It's a 40W 4K primary with 4,8 and 16ohm output...
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I ran my 6V6 with the Classic Tone Bandmaster/Vibrolus/Pro Reverb OT with 4K primary. I ran the 8 ohm speaker on the 4ohm tap and bump the primary up to 8K....
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My first Amp with 6V6 got pretty warm, I have the transistor mounted onto the chassis inside and have a 12W heat sink on the opposite side of the chassis....
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I drop 40 to 50V on my PT that was for 6L6 to run 6V6. I use a chain of 5W zener diodes 1N53xx type. Of cause, the right way is to use MOSFET and all, BUT...
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It is normal to be like this. The only reason those BF and SF Fenders that only treble and bass still have sound even when you crank both to minimum is because...
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A little off the topic, For tools, equipments for electronics, I shop on Amazon. I join the Amazon Prime, it worth every penny and times 100!!! I buy solder,...
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At home, with your guitar, practice, hours a day, years............
I remember when I was playing, 2 hours a day, 5 days a week, having different...
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Ha ha, I might be really born cheap!!! I love that amp!!! It has a very nice clean channel too. This is the one influenced my designs.
It seems...
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That could not cause the problem.
But I am not surprised it blew for no reason either. Look at the big tubes, make sure it's not glowing on the...
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Check out the Super Sonic. They are very good. I tested a lot of OD high gain amp lately, this is the one I like best with the Marshall DSL40C comes in second....
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Ha ha, I won't touch building speaker with a 10' pole. This sounds much harder than building a transformer(which I won't touch either) and need more equi...Last edited by Alan0354; 01-12-2015, 12:45 AM.
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My JCM 900 blew the HT fuse for no apparent reason too!!! I troubleshoot all the way to the fuse and found no problem. Replaced the fuse and was good to go....
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Yeh, I just avoid it. But I never said anything bad about it because I don't know. I just know that it will sound different. I just like my old Vibrolux...Last edited by Alan0354; 01-12-2015, 12:28 AM.
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Thanks guys, I don't think it's worth the effort. It was tight when I broke the screw after I cranked very hard. I can even see a slight bump on the other...
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Thanks guys, I was going to drill it out and replace with a screw that goes through, I guess that's out as the screw is harder than aluminum and the drill...
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extracting a broke off screw from aluminim pannel.
Hi, I made a mistake assembling a chassis I bought, I used a too long a screw to screw into a thick aluminum front panel with blind holes ( screw not coming...
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Ha, why are people keep thinking the late 70s UL Pro/Super etal do not worth the money. I never own or try one, I have no comment on the sound, but you definitely...
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I took a quick look at the schematic, the front end is very similar to the 73 and later Twin Reverb that I had with MV. The tone stack is very close to the...
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Side step a little. If you are going to put a switch for UL, put another switch to go between that and triode connection!!! It's in the same area, you'll...
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