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Post by slimhairy on Dec 17, 2010 18:27:08 GMT -5
I don't even know what it came out of?? it has 6sn7 6j5 sy3gt?? Attachments:
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Post by slimhairy on Dec 19, 2010 18:30:08 GMT -5
sounds really really good though... I built a small box for the speaker and the little thing really jams i even hook up a 12" clestian to it I think it will handle 212 nicely
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Post by pwfirst on Dec 20, 2010 13:29:35 GMT -5
Tube amps have a lot more volume . Old tube amps are hard to beat, old speakers are better off replaced. Nice find.
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Post by rayden44 on Dec 20, 2010 16:24:43 GMT -5
Fender used similar tubes on their real early amps. Champ 600/800, Woodies (the first actual 'Fender' amp) and the like. Not quite the same, but that's about the closest I can see with a few mins of looking! They seem to stop using the 6SN7 in the early 50s, moving to 7025's or 12AY7s. I'd hazard a guess that's the time period you're looking. You may have somebody's homebuilt project that's survived since people used to build these things  I know from my homebuilt prinzetone (read: princeton) amp these simple amps have a real nice sound to them. Great find! |
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Post by slimhairy on Dec 21, 2010 15:45:29 GMT -5
I poked my finger trough the fragile paper of the cone WHA .. um so I have a question  do I need that xmfr on the speaker for other speakers?? |
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Post by rayden44 on Dec 21, 2010 23:33:18 GMT -5
Looking at the picture, my first thought is there are 4(?) wires heading to the transformer, then two off the transformer to the speaker. Obviously 4 = too many wires! Disclaimer: I don't know what in the hell I'm talking about and I'm purely guessing from here on in. Somewhat educated guessing, but still guessing. I should also mention that there are nice wires in tube amps that carry 5 / 12 volts. There are also nasty ones that carry 300 volts and up. BE VERY CAREFUL WITH WHAT YOU'RE TOUCHING!  I would imagine this transformer's job is to match the impedance generated from the amp, with the impedance of the speaker. So you're likely to have 2 wires for power for the transformer, and 2 being your signal wires. I'd say if you want to match your amp to a new 8 ohms speaker (I think I read the blurry text correctly), yes you have to use the transformer. This will hopefully keep more or less the same sound as well, and is the easy option. If you remove the transformer things get difficult since we don't know what this amp really is. Do you have a piccy of the front controls? or is that volume and input we're looking at and nothing on the other side? Anyway I'd suggest going to an amp guy (your local music store should be able to recommend one) and get them to take a look. Unless somebody in the audience actually knows what they're on about |
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Post by slimhairy on Dec 23, 2010 11:34:01 GMT -5
you guys are awesome thanks! over the weekend I am going to be diving into both my new ebay tube amps .. you guys should get a pool going an how many times i get zapped!
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Post by rayden44 on Dec 23, 2010 16:53:47 GMT -5
Ha ha I was fine building my homebuilt amp. Only time I got zapped was when I was doing some troubleshooting on the tremolo circuit and got a bit careless shifting a wire. Just be careful, they have massive capacitors too so they'll hold a voltage for several hours after they're off. You should be ok playing with the speaker side of things, but just watch if you start digging underneath you can always take a voltage reading with a multimeter if you're concerned, |
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Post by lessonsthatrock on Jan 19, 2011 13:06:24 GMT -5
I don't know jack about electronics, but that's super cool. Do you have any plans for that vintage beast?
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Post by slimhairy on Jan 23, 2011 10:44:06 GMT -5
I am in the middle of another build right now but I plan to do a cap and tube job on it soon, maybe build a cab for it. I have it hooked up to half of my 412 and it sounds great.. aside from a bit of hum
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