Hi everyone,
I need some help with a tube amp I have.It has no make exept for the transformer which is a peerless /altec lancing corp seriel 16277.It has 2 12ax7,one 12au7,one vr150 written in chassis plus two tube sockets.I got it with the following tubes 2 x 12ax7,1 x 12au7,1 x od3,2 x 6l6g.It has a 8 pin plug for the psu.I would like to find the schematics for this but do not know exactly what it is.power amp?preamp?one black rca plug and 4 red pin plugs.screws for impedance unmarked.
any help welcome.It has a screw for balance aswell.
Thanks
I need some help with a tube amp I have.It has no make exept for the transformer which is a peerless /altec lancing corp seriel 16277.It has 2 12ax7,one 12au7,one vr150 written in chassis plus two tube sockets.I got it with the following tubes 2 x 12ax7,1 x 12au7,1 x od3,2 x 6l6g.It has a 8 pin plug for the psu.I would like to find the schematics for this but do not know exactly what it is.power amp?preamp?one black rca plug and 4 red pin plugs.screws for impedance unmarked.
any help welcome.It has a screw for balance aswell.
Thanks
Attachments
Have a look to this link
http://www.triodeel.com/schindex.htm
There is quite a number of altec/perleess schematics. Hope you find something useful. It should be a power amp. mono.
Ciao
Gianluca
http://www.triodeel.com/schindex.htm
There is quite a number of altec/perleess schematics. Hope you find something useful. It should be a power amp. mono.
Ciao
Gianluca
I think it is pretty obvious looking at it that this amplifier was a DIY effort and not the product of some audio company. Looks nicely built though, too bad you have not got the supply that goes with it. The chassis box appears to be a bud box incidentally. I have seen a lot of home brew amplifiers in this neck of the woods over the years and some of them were built to very high standards.
Kevin
Kevin
I don't believe it is a power supply, as I recall I used the same type of peerless output transformer in one of my long ago projects. The OD3 could be used for screen regulation if the amplifier is set up for tetrode mode operation. The driver topology is anyone's guess..
Kevin
Kevin
The output transformer may have been used in a W-2, but the only Heathkit W-2 I am aware of used a pair of 6SN7 and 5881 in an ultra-linear implementation of the old williamson design. This particular amplifier is not a W-2! The power supply which was on a separate chassis used a 5V4.
Here is a link to schematics, and pictures of a real W-2: http://www.vintage-radio.info/heathkit/
Another thing that makes it obvious that this is a homebrew is the raggedness of the holes around the tube sockets. I have never seen a heath product available commercially with holes that looked like that.
I maintain that this is a homebrew, albeit a very well put together one.
It may even be a williamson, but the tube line up makes me believe otherwise.
Best, Kevin
Here is a link to schematics, and pictures of a real W-2: http://www.vintage-radio.info/heathkit/
Another thing that makes it obvious that this is a homebrew is the raggedness of the holes around the tube sockets. I have never seen a heath product available commercially with holes that looked like that.
I maintain that this is a homebrew, albeit a very well put together one.
It may even be a williamson, but the tube line up makes me believe otherwise.
Best, Kevin
I had intended to post a picture, but I don't have anything good enough, (and I don't currently own a W2) however there is a very lousy one you can look at here:
http://www.vintage-radio.info/heathkit/diagrams/w2_spec.gif
Kevin
http://www.vintage-radio.info/heathkit/diagrams/w2_spec.gif
Kevin
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