Tube Amp Archive

Hi Colossal.
I'd really be interested to hear more about that cathode Garter biased El34 amp! Don't know much about garter biasing.

I really hope it gets back up and running again, it was a fine forum. Fingers crossed for it's return.
You know I had no idea that Enzo had passed, man that's sad. I'm so behind with events.
Cheers all.

That's awesome RG, thank you so much for posting that I will read it most carefully.

That would be great, thank you RG. I'll look forward to that.
I haven't been on the music electronics forum for ages, it seemed hard to access properly for sometime now. Pity id like to have read that stuff!

Hi RG
I Don't know about anyone else, but I would seriously like to hear more about your work on simulating a tube rectifier. Sound like an incredibly useful thing.
Cheers

Thanks Loudthud.
Yes that cathode voltage must be wrong, its even a wee bit low for EL84's never mind 6L6G.

Cheers

Thinking of building something closely based on one.
I saw Rhett Shull's YouTube post about his, the one modded by Eli Lester and one done by a guy over here in the UK, and thought they sounded great.
Cheers.

Thanks Sluckey
Does anyone know the transformer specs for these amps, or where I might find out?

Cheers

Thanks Jack

Hi folks
Has anyone got a schematic for a Masco ME-27? Or maybe give some info about them, like for instance what phase inverter they used.
Cheers
Shane

Hi guys. Thanks for the replies. Loudthud, don't think it has a switched mode supply, and yes I do use a lightbulb limiter so I'll power it up with that once I've replaced the damaged parts. SteveM, I'd really appreciate a schematic if you can get one thank you. I'll check the supply at the appropri...

Thanks for replying, the amp blows the mains fuse pretty much as soon as its turned on. That's how it came to me, so I cant answer any of those questions, sorry. The guy bought it in that condition for a very cheap price. I have no history of how it's been used. I suspect there must be some possible...

20240808_214309.jpg Anyone know the values of the burned out components on this picture L6,R28,R27,D14,D13 ? Blackstar series one 100w head. I could do with knowing what they do in the circuit too. I assume they are part of the fx send and return circuit since they are right next the to the loop Ja...

Thanks teemuk

🤣🤣🤣 oh heck, do you know I never even noticed that! Probably because I was initially looking at the pedaltone 1 which has a slightly different circuit configuration which doesn't mention the tranny, and only downloaded the pedaltone 2 one just before I posted on here. Oooh I feel such a fool🤣 Thanks...