Tube Amp Archive

Thanks, I'll go over to sloclone. Never been there before as that's not my type of amp. I understand about the parallel input tube; used it myself. I just meant I couldn't imagine how he took that and then went two different directions to come back again... Yes, he does things differently but makes ...

I have a Sig:X and like how the "GAIN I" and "GAIN II" work together. I was wondering if anyone knows the topology of these stages. Freyette states the input is a parallel 12ax7, so I can't figure out what's going on here. I'm not trying to get a schematic or specific values, just the outline. The a...

Thanks, everyone. I'm going to give the gun a good cleaning around the contact points and see if I can use this tip. Does anyone know if I can get a replacement somewhere for this gun? I haven't come up with anything online.

I didn't make myself clear. The problem is melting the solder in the first place. I have an old Weller 8250a that is 250 watts. This should do it, but the last time I tried it didn't touch it. I've poked around a little and I think I might have to take the tip off and clean any corrosion off really ...

Specifically, I've got an old Traynor Voicemaster. I need to get the big grounding blobs of solder off places like the old cap cans. I have an old Weller soldering gun, but just with the regular tip. I've heard you need something with more mass, but an internet search hasn't come up with anything fo...

katopan - I have never had the resources to try out a lot of different tubes. I was honestly not aware there is that much noise difference between tubes. You're pushing me toward solid state! :cry: brewdude - I have used a 6AU6 once about 10 years ago. I liked it, but the circuit I was using was ext...

For low noise (hiss) use quiet tubes and quiet resistors (good metal films) especially in the early stages of the preamp. As much as possible, avoid too much interstage attenuation, since the signal will pick up noise everytime it goes through a voltage divider (look at something like the high-gain...

I don't know if this is helpful or not, but I had been working on a new amp using a parallel input 12AX7 into a 5693 Pentode with variable screen voltage into a parallel 12AU7 cathodyne PI into a cathode biased pair of 6V6's. I used an unconventional layout to make it fit in the recycled donor chas...

I'm sure I have far less experience/knowledge than most here, but from my studies, to remove the noise depends much more on layout, spacing, and grounding methods than the actual circuit used. JB Those are all factors, but once you get those right it comes down to number of gain stages and resistan...

NickC wrote:Everything you ever wanted to know about the Rocket:

https://tubeamparchive.com/viewtopic.php?t=5684

Thanks! I'll be studying that tonight.

What you described in your opening post is a Rocket with octal power section either 6L6, KT66 or EL34's. The amp is pedal friendly, no hiss, super quiet operation, plenty of push when needed, can deliver Fender clean or let the power amp push a little. I add a DPDT bright switch for 100pf and 500pf...

6L6 or El34 in ultralinear mode, no master volume, pushing it to breakup volumes, practicing in the bedroom at night? :roll: http://www.roland.com/products/en/Micro-CUBE/ :) Thanks for the Rolling Eyes. Thanks for the help. Oh, wait... that's right, you didn't. I went back and rewrote a little bit ...

are you really going to be able to run a 50-100 watt practice amp? it doesn't seem like you are looking for bedroom levels then? I can run anything I want, but I have no intention on building a 50 - 100 watt practice amp. I don't know where you got that. Bedroom levels? Once in a while I need to pr...

This may not be exactly where you're headed, but have you played a 5E3 Deluxe? Yes I have. Love 'em. For this purpose, they do not have enough clean headroom. I've considered going the fixed bias 6V6 route, but it's just as easy to make a 40 watt 6L6 amp. Not much difference in clean *volume*, but ...

I'm trying to come up with the outline of my practice amp I want to build. The goal is to come up with an amp with the lowest amount of noise as possible (especially that hiss) while still staying alive with some harmonic distortion. The ideal would be for the output tubes to just start breaking up ...