Hello

This is a nice and rare rack mount tube preamp from the early 90's from Jackson. I have traced the power supply and created a schematic. Its just a simple linear supply.
I was thinking about reverse engineering the whole thing. Leave a comment if you want me to trace the entire thing. If I get enough interest Ill do it.

I posted a YouTube video about it on my channel:

JacksonJX3_PowerSupply.jpg

Peace out.
Pete

Hello everyone!
Your requests have been heard! I've added three brand new PCBs to my products list 🙂

SLO-style PCB (400mm x 78mm)
Princeton Reverb PCB (322mm x 63.5mm)
Dumblelator PCB (240mm x 35.5mm)

All boards come with full documentation: layout, schematic, BOM! If you want to check out the documentation without any purchase, I've made it available for FREE on my website for anyone to download (just login and you can view/download everything):
If you have any question, please let me...

I want to build or purchase an affordable EL34 power amp, either 2x rack unit or small head format. Absolute maximum 50W, ideal 10-20W, as it is just for playing and eventually recording at home. Only power amp & phase inverter, no preamp, as i have a gazillion preamps either made or in the making for it, and a valve head already.

Any recommendations on DIY kits or ready-made products that have a good quality-price ratio?

Thanks in advance!

davoli-jolly_08.jpeg davoli-jolly_01.jpeg davoli-jolly_04.jpeg davoli-jolly_06.jpeg davoli-jolly_05.jpeg

The date on the schematic isn't really 1955, is it?
Wouldn't that be very early for solid state rectifier?

Davoli DTE 1051T.jpeg Davoli DTE 1051 T.jpeg Davoli 1051T 02.jpeg

The schematic is not complete, what are the stages to the right? And where's the ECL86 pentode stage?
Still the schematic lists the tubes as:
V1 ECC83
V2 ECC83
V3 6AV6
V4 ECL86

Is very much like the little pink amp a restored a few years back. That one was sold off, I just had too many amps around the house, and too little time to play them all. Little Pinkie was very wanted, just because of the color. But it also meant that I had to spend about 275 euro to wrestle it from the hands of some Flemish hipster soccer milf. It needed new tubes, a whole bunch of rewiring, filter caps and a new speaker. Then the guy who bought it haggle down to 350 euro, though I wanted 375....

Hi,

anyone has schematic of this little amp? I own it and am just curious to see what they did.
It's all SMD, so it's a bit of a pain to reverse engineer. Would maybe consider modding the tone stack if it's possible to do without too much SMD work, but it's unlikely.

Tnx,
Bancika

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--Brad

Hi there, I search a bogner fish schematics :)

Thanks

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Some of them have died at power-on, when I tried to use the preamp after its long sleep in the closet.

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Hi Everyone,

I've just recently been given a Peavey Backstage Plus 35W Solid State guitar amp for nothing, and I'm currently working on it to get it back to a useable state, so, what's wrong with it?

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I figured I may as well post this here for anyone who may want to clone this thing... I ain't never gonna have time to do it so, if this is on your bucket list or you're just bored, sitting around waiting for nuclear annihilation or another bio-weapon attack... then this may keep you busy while you anxiously await the destiny of mankind...