Trainwreck Songbird 30

[M Fowler]

Starting on my version of the TW Songwriter 30

Drilled and punched holes, made boards, and did some component mounting.

Using Edcor:

PT XPWR064-120 570v 250mA

OT CXPP30-MS-3k8 4/8/16 30w rated

[jeff12]

Nice start Mark.
Like the faceplates your using.

[Progear]

Very nice, keep us in the loop...

[M Fowler]

I don't know the exact values of the silvermica caps used in the preamp to the Clarostat 3M-S bass volume pot but I'm going to take a guess and see how it sounds.

I'll post more pictures as it goes together.

[randalp3000]

hope these help
If I get time and can find it I'll pull it apart and measure some stuff for ya.

love the faceplate, looks killer

[IMG768]http://i1233.photobucket.com/albums/ff388/randalp3000/amps/DSCN0364.jpg[/img]
[IMG768]http://i1233.photobucket.com/albums/ff388/randalp3000/amps/DSCN0365.jpg[/img]
[IMG768]http://i1233.photobucket.com/albums/ff388/randalp3000/amps/DSCN0372.jpg[/img]
[IMG768]http://i1233.photobucket.com/albums/ff388/randalp3000/amps/DSCN0373.jpg[/img]

[M Fowler]

Yes those are nice photos thanks.

Got some more done based on the photo I had.

I need to order a PEC 250k pot as well thought I had one but apparently not.
Stuck a 1m in there to plug hole.

[kwijabo]

dangit, mark! i've been clean for 2 months now....but seeing your builds always inspires me to get a build going.

looks like really nice work - excited to hear how it turns out and what values you like.

[M Fowler]

I've had this chassis and parts sitting in a custom head cab by Taylor for probably more then 1 year. So you can see I'm not really blazing away on this project.

I do plan to keep at this one and finish it up soon.

[Bob S]

Nice & clean Mark.
The parts count makes this very tempting.
I'll be interested in how it sounds buddy.
Great work.

[M Fowler]

Thanks, the 3M-S (linear) pot is the only thing a person has to search for.

Question for my great family of amp builders: I have two old 5M long shaft pots could those be used for 3M if a resistor is used across the pot to lower value? My 3M-S Clarostat is a screw driver adjust pot so I'm going to cut down the threads to get a knob on the shaft.

[Smokebreak]

Thanks, the 3M-S (linear) pot is the only thing a person has to search for.

Question for my great family of amp builders: I have two old 5M long shaft pots could those be used for 3M if a resistor is used across the pot to lower value? My 3M-S Clarostat is a screw driver adjust pot so I'm going to cut down the threads to get a knob on the shaft.

You can but I think the taper gets screwy. Looks great! I'm interested in one of these too.

[Aurora]

Songwriter...huh? What's the differnce between this and the others ???

[M Fowler]

Songwriter...huh? What's the differnce between this and the others ???

V1 is wired parallel and doesn't use a typical tone stack. Diode rectified and has NFB.

See Hogy's report.

[M Fowler]

Ordered 250kA PEC pot and found another longer shaft 3ML pot to replace my Clarostat pot. I'll wire up the filaments and power tubes while I wait for parts.

Mark

[Turbojunkie]

Following this build closely Mark, the descriptions of this model are very enticing!
Looking good my friend!
Adam