Music Electronics Forum - Vintage Amps http://music-electronics-forum.com/ en Fri, 20 Nov 2009 22:53:09 GMT vBulletin 60 http://music-electronics-forum.com/images/misc/black/rss.jpg Music Electronics Forum - Vintage Amps http://music-electronics-forum.com/ Elk Custom 45 http://music-electronics-forum.com/t16192/ Wed, 18 Nov 2009 16:54:45 GMT Had a guy ask me about one of these today. I've found a little info on google about it, but not much. Anybody here have any knowledge of these amps? Do they have any value today? Are they worth restoring?

Thanks. ]]> Vintage Amps Phostenix http://music-electronics-forum.com/t16192/ Shaftesbury http://music-electronics-forum.com/t16048/ Tue, 10 Nov 2009 10:23:14 GMT Hi, Just got this amp, and I am wondering could anyone help me how and where to connect speakers and what to do with red and black bare wires.... Hi,
Just got this amp, and I am wondering could anyone help me how and where to connect speakers and what to do with red and black bare wires.
Otherwise when switched on all tubes are on and glowing.
As you can I am an absolute beginer.

Thanks in advance.
Attached Images
File Type: jpg PB100443.JPG (1.48 MB)
File Type: jpg shaftesbury1.jpg (1.60 MB)
]]> Vintage Amps winnetou http://music-electronics-forum.com/t16048/ Old Canadian 5w tube amp? http://music-electronics-forum.com/t16042/ Tue, 10 Nov 2009 03:22:41 GMT Hey there folks. Let me start out by saying this is my first post here and I have absolutely zero experience with tube amps. I bought a little 5w... Hey there folks. Let me start out by saying this is my first post here and I have absolutely zero experience with tube amps. I bought a little 5w "Arc" amp today. "Made in montreal by pine electronics(pepco) in the sixties and early seventies. pepco made a number of amps, all similar- but with different badge names, like pine, regal,arc, riviera etc." ( Pepco Tube Amp - Thread ) This is about all I could dig up on the amp. A schematic would be awesome if anyone has one. I plan to put an isolation transformer in it, any advise on this?

Will this thing have any difficulty powering a 10" speaker? What type of speaker can you folks reccomend and what type of cabinet should I think about building?

Also, when I push it hard it sounds like an Octave effect. I found that the 8" speaker in this is damaged. Is this likely the cause of this sound?

Any other cool mods you can reccomend?

Thanks in advance everyone, the help is appreciated! ]]> Vintage Amps murphinitis http://music-electronics-forum.com/t16042/ Modifying a tremolo circuit in a vintage Magnatone... http://music-electronics-forum.com/t15913/ Mon, 02 Nov 2009 19:52:41 GMT Hello again. This time I have a question about modifying the tremolo circuit in a Magnatone M9. Is there a way I can tweak the circuit to broaden the... Hello again. This time I have a question about modifying the tremolo circuit in a Magnatone M9. Is there a way I can tweak the circuit to broaden the range of the speed control? Even when turned all the way down to it's slowest setting it's still pretty fast and I wouldn't mind it being a little faster when all the way up... I've attached the schematic. Any input would be greatly appreciated. Thanks.
Attached Images
File Type: jpg Magnatone M9 Schematic.jpg (332.6 KB)
]]> Vintage Amps kage1974 http://music-electronics-forum.com/t15913/ 4 7591 power tubes... http://music-electronics-forum.com/t15901/ Mon, 02 Nov 2009 00:12:42 GMT I have 2 amps that both use a pair of 7591 power tubes with various preamp tubes. I was wondering if there were any amps that have been made that use... I have 2 amps that both use a pair of 7591 power tubes with various preamp tubes. I was wondering if there were any amps that have been made that use 4 7591 power tubes. I looked and all I found was some old fisher hi-fi stereos that used them.

I really like the sound of the 7591 tube, as opposed to a 6L6 quad, or an EL84 quad. But the amps that I have found that use 7591's seem to put out at most, like 30 watts, and I really would like to have like 50+ watts.

Is there something inherent about the 7591 tube that disallows it to be used in a quad?

what's up with that? ]]> Vintage Amps Bmxbarspin724 http://music-electronics-forum.com/t15901/ Quick Acoustic 150B question http://music-electronics-forum.com/t15881/ Sat, 31 Oct 2009 20:32:50 GMT Not even technical. I just got an Acoustic 150B, however it's in a bit of rough shape. It has no mounting screws (weird), which makes it a bit difficult to carry around. Does anyone have an Acoustic 134/150/150B arond, and if so, would anyone be able to tell me what screw size the mounting screws are so I can go to the hardware store?

Thanks in advance. ]]> Vintage Amps closet marine http://music-electronics-forum.com/t15881/