RG, good point I forget that there's a z-axis to take advantage of here as well. Might have to try that next time around.
I went ahead and had...
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@uneumann Hi prof fancy seeing you here!
Thanks for all the inputs everyone. It's really helpful to hear from others who have been through...
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In case you're interested, I've played with a similar mid control circuit I found in Merlin's book (of course) that has an adjustable center frequency. I...
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PCB Design for Preamp + Power Supply
Hi all,
I'm trying my hand at translating a turret board design to a PCB. The goal is to reduce my build time as much as possible without sacrificing...
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Doh! Yeah thank you for catching this. I've actually built this amp twice, and the NFB was originally tied to the 4Ohm tap of the OT. Somehow I messed that...
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Okay pretty interesting discussion, still trying to grasp some of it.
FWIW, I'm using twin reverb iron (the the PS, PA, and PI are from a blackface...
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loudthud,
Yup I've got 15K on the cathode of V1a. Basically just wanted to drop the gain at the first stage and was too lazy to wire up an interstage...
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Cathode Bypass Effecting Tone Stack Bass Control
Hi all,
I'm going down the endless tweaking wormhole on a design. I thought the amp was sound a little flat with all tone controls set at noon,...Last edited by ToneHenge; 12-28-2019, 01:50 AM.
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Way late on this one, but ya'll were right. I added another PS filter cap for the first preamp tube amp everything works great now! Guess I forgot to revisit...
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Sounds like the consensus is that I need to add another filter stage. Kind of ironic because I was given this suggestion early on in the design stage, but...
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Accidental Tremolo on DIY Build
I've stumbled into a real doozy on a recent build. I've noticed my amp starts to produce a very low frequency amplitude modulation (sounds like tremolo) under...
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Okay everyone pretty much had it without even needing to look at the circuit. I reflowed solder on pin 9 of the phase inverter (V4) and everything is working...
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Hi Tom,
I am having trouble posting any attachments at the moment. I think my account might be too new, so I'll circle back and edit this post...
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Help Needed with Heater Wiring
Hi all! First time posting here after years of browsing and taking notes. Thanks for all the help so far
I'm wrapping up a custom build...
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