The Amp Garage

Love the clips... One of the best sounding amps I've heard. Great work and playing!

Yeah.... that looks like what I'll have to do... I can take 2 of the bridge diodes out and use the center tap. Then scale the bias resistors appropriately... :D I just simulated the supply in the Duncan PS program and got 700+ Volts. No wonder I was getting wacky high B+ when I brought it up to like...

If I have to, I can make up an Express type supply and drop it in there. Either just the bias or the B+ and the bias...

I'm using this tranny... http://www.classictone.net/40-18056.pdf

Ok.... now I get it... Both yellow wires are the bias winding... Duh! I just don't have them on my tranny. I guess I'll have to make my own bias board and do my own supply. A handful of components ought to do it.

That's the weird thing, I ve seen pictures of this amp with that wire grounded...And supposedly it works... I don't see how... Here's some gutshots of one on ebay... Sure looks grounded to me [img:1024:768]http://i1154.photobucket.com/albums/p529/PlinytheWelder/wsoy1_zpsm0pwukfd.jpg[/img] [img:1024:...

I'm building one of these, just about done. Brought it up on a Variac and light bulb limiter and I don't seem to be getting bias voltage. Here's the layout, no schematic available yet. [img:1056:994]http://ceriatone.com/images/layoutPic/Hod%20RoddedPlexi/SonOfYetiLayout.jpg[/img] Maybe I don't get i...

Made some more progress today... Homestretch!

[img576]http://i1154.photobucket.com/albums/p52 ... 3100im.jpg[/img]

This is a pretty complex little amp... and I made it more complex.. LOL

Ok...I was on vacation, but I'm back to the build now... Wired up the OT and impedance switch. Decided to put a variable feedback pot in(100K) and lowered the feedback resistor from 47K (measured at 54K,,, carbon comp) to 33K. Also mounted the MetroAmp loop off the back because the drilled holes don...

Did a bit more on the power tubes.

[img576]http://i1154.photobucket.com/albums/p52 ... ncmujy.jpg[/img]

Did a bit more today. Mounted the power transformer and started with this... [img:1024:576]http://i1154.photobucket.com/albums/p529/PlinytheWelder/pt-1_zps7dedcqcb.jpg[/img] Wired it up... [img:1024:576]http://i1154.photobucket.com/albums/p529/PlinytheWelder/pt-2_zpsdbcuhxk2.jpg[/img] It even lights...

Now a ratsnest of wires to be sorted out and hooked up...Changed the mid tone cap to a .047uF, too.

[img576]http://i1154.photobucket.com/albums/p52 ... ezml0o.jpg[/img]

Started filling the board...I used a lot of RN65's from my junk box because I like them.

[img576]http://i1154.photobucket.com/albums/p52 ... q4ngtw.jpg[/img]

xtian wrote:$120 for a set of tube sockets! Wowzers.

They are a lot cheaper on ebay

M Fowler wrote:Gary have you loaded your board yet?

Not yet... Just loaded some hardware on the chassis