Amp Head for DIY-Head

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Dr ZEE

Dr ZEE

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I'll call you Dr. Frankenzee!!!

.................................. :eek: ;)
 
wildflower soul and Dave, THNX! :D
btw, Dave, unlike ZEE, Frankenstein knew why his creatures were walking and talking. :D
 
So then you say...

the rest of that Webcor is just junk? Use the amps and toss the rest into a misc. parts box? Is that it?

BTW, that amp DIY thing looks awesome! :eek: ;)
 
That is pretty cool. I have an old tube Sony RR in the basement somewhere. Hmmmmmm...............
 
A Reel Person said:
I'll call you Dr. Frankenzee!!!................................. :eek: ;)

I'll second that emotion! :D

Another beauty. Well done, Mike! :)
 
TR/Mike, thanks! :)
Daniel! LOL :D :D :D , thanks for visual ;)
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Dave, other parts are pretty cool stuff too. Useful? Hard to tell. I am attaching a photo here. You see that mighty motor got two wires. plug it into the wall and it spins damn well :D That system is straight forward. There's a mechanical switch there, moves the belt while it spins and shifts it ... three speed spinner, that is. I actually am thinking about maybe building some sort of rotary-drum/speaker cab thing, but I am not sure if that motor is up to the task yet.
The heads from those webcors are pretty fancy, I'd say. They are actually half-track heads and they have switch that shifts the head a bit up.down so it can work as two-track or four track. It would be cool to bild a some sort of dedicated tube-driven half-track format delay machine, but, man, I am not sure that I'm up to that task. It's doable, but will be hard and will cost too... so I don't think I'll get to it, from practical point.
*********
I've recorded some soundbites of the guitar head, will put it together on the page and will post link here sometime later.
thanks again for checking, guys,
/respects
 

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Nice work Doc! :)

You should have a dry ice machine running in your work area for that mad scientist laboratory feel. I've thought about that myself. The right atmosphere is half the battle, you know. ;)
 
heh heh, Tim, where do you get dry ice nowdays? Does it exist?
*******
here are some sound bites: Audio-Samples PAGE [HEHER]
...done quickly just to provide some rough idea about the sound. Recording amp/cab is the whole different story, I suppose. What I've done here - just pointed couple 'inappropriate' :D mics and recorded some scraps direct to CD-R without much of experimenting around (through behringer's preamps/mixer).
I may do something better if I get a chance.
/respects
 
I've added the second set of audio samples HERE , which were recorded direct from Preamp Output of the amp-head to mixer's channel.
The samples titled "dreamy improvisation, dreamy strum and shuffling" are "clean channel" preamp out position and the other ones ("annoying pop-rock, slightly fuzzy, neilonic rhythm, filthy dirt, trash-trashier and heavy-heavier") are "dirty channel" preamp out position.
For "preamp out" details see this schematics/chart gif file.
 
Dr ZEE, the wife just came home from a garage sale witha Webcor 333-1 phongraph, probably from the 50's. Would this be a similar mod?
 
Mike (TR), I have no clue about what's inside phonographs. Never even had one in my hands.
The short answer to your question would be - NO, meaning the mod would be different, that's for sure. My guess is that you may have enough parts there to buld a small guitar amp, but the preamp section would need to be re-designed and that may mean that you will need maybe a few different componets and some parts. The good thing about recorder's amps is that they already designed with input preamp section and most have mic and line level inputs. Mic input works fine for guitar pickups (also can be re-designed, or modified of course). With r-t-r machine you actually can use it as is without any mods, it's just not very practical. HERE: Check this guy out, :D (nice photos , btw :) )
Here's another webcor amp "project" (without mods, and no preamp (???)), btw, that's a kind of amp you may have in your phonorgaph, or similar, but it's just a wild guess.
Now, here's a good thing about webcors - the unit may have schematics glued on the inside of the enclosure somewhere. That's what I know from r-t-r machines, so I guess maybe phonographs also have schematics inside. The painfull part is though that it is hard (or imossible) to take it off and the old paper iss falling apart. And the lettering of the print is almost microscopical :mad: .... (you can see the original schematics that I've took off the inside the enclosure-case of MusicMan machine, it's on the bottom photo of this chart)

Anyhow, if you have the schematics and you can get it scanned, then I may try to sort of guess how to mod the thing, but I'm not a guy really to ask about something that I personally have not done. I suck in theories :D , I'm not so sucky with a hammer, though ...well, I gotta have confidence in something at least. :p
Open the thing up, make a photo if you can, post here. Just be careful. Dont touch contacts. You MUST make sure that electrolytic filter cups are discharded. SAFETY ASPECTS - read here , just in case.
Drop a note, what ever you do,
/respects
 
a side question: Mike, where else your band can be spotted besides nowhereradio :) ? I was moved by "Move", btw - that moves electrones right - :cool: :cool: :cool:
 
Did'ya see the Tascam 32 preamp section on Ebay today?

I guess you missed it! And only $25!

:eek: ;)
 

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I thought about bidding on that 32-preamp for a while, but...

Naaaaaaaaaahhhhhhhh!!!

I have too much fixit gear already, and a fully intact Tascam 32! :eek: ;)
 
huh, Dave, that looks like a nice gadget to me :D
I'm not sure what it's good for as is. Parts are cool always. To make a two-channel preamp out of it? - maybe. I've seen similar auction for otari mx5050 two-tracker piece. I've built another special pice of gear some time ago, based mostly on parts of a disfunctional jvc cassette deck, but the main purpose of it is - auto-transformer step-attenuator, also can function as preamp/level control/VU-metering with peak-metering. It looks cool in action :D . Here's the link to the page of the project , (not much details there). Direct link to chart/photos jpg.
 
I've done some investigation. Preamp looks like 12AT7 and 12AX7, two 6V6's out. As soon as I turned it on I can hear a lot of 60 hz hum. Looking inside, I found that the tone arm electronics plug into the amp on a single RCA. I cobbled together a 1/4" to RCA and plugged in a guitar. If I can get rid of the hum, this will be a kick ass amp just as it is.
 
And thanks for the kind words on my band. We play a bit around town here. NoWhereRadio is the only net presence.
 
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