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Post new topic Sho-Bud X-Mas Tree Schematic?
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Author Topic:  Sho-Bud X-Mas Tree Schematic?
Stu Schulman


From:
Ulster Park New Yawk (deceased)
Post  Posted 12 Mar 2009 10:45 am    
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My friend is fixing an old Sho-Bud X-Mas Tree map and needs a schematic,he wants to replace the old filter caps and that sort of thing.If someone could email me one that would be way cool,Thanks,Stu Very Happy
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Steeltronics Z-pickup,Desert Rose S-10 4+5,Desert Rose Keyless S-10 3+5... Mullen G2 S-10 3+5,Telonics 206 pickups,Telonics volume pedal.,Blanton SD -10,Emmons GS_10...Zirctone bar,Bill Groner Bar...any amp that isn't broken.Steel Seat.Com seats...Licking paint chips off of Chinese Toys since 1952.
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Ricky Davis


From:
Bertram, Texas USA
Post  Posted 12 Mar 2009 1:26 pm    
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If I'm not mistaken(correct me if I'm wrong); the compactra is the same schematic and here's that>
http://www.prowessamplifiers.com/schematics/misc/shobud_compactra_100.pdf
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Ricky Davis
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Stu Schulman


From:
Ulster Park New Yawk (deceased)
Post  Posted 12 Mar 2009 4:27 pm    
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Ricky,Thanks so much I will print out for my friend.I will be in Texas in April I hope that I can see you play live?or at least get to meet you.Stu Winking
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Steeltronics Z-pickup,Desert Rose S-10 4+5,Desert Rose Keyless S-10 3+5... Mullen G2 S-10 3+5,Telonics 206 pickups,Telonics volume pedal.,Blanton SD -10,Emmons GS_10...Zirctone bar,Bill Groner Bar...any amp that isn't broken.Steel Seat.Com seats...Licking paint chips off of Chinese Toys since 1952.
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Ricky Davis


From:
Bertram, Texas USA
Post  Posted 12 Mar 2009 4:40 pm    
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No prob. Stu.
Yes check our schedule at www.missleslie.com to see where we're at when your here...Love to meet ya.
Ricky
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David L. Donald


From:
Koh Samui Island, Thailand
Post  Posted 12 Mar 2009 6:35 pm    
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What a curious amp!

Interesting tacking the Body or midrange tone after stage one
then bass and treble after stage two,
separating the lossy stages.

And most curious:
7199 Pentode Triode tubes as a Phase Inverter
NEVER seen that one.
And using a 6L6 as a voltage regulator AFTER a diode bridge! ???

It is not driving those 1st stages too hard,
since this ear steel amp didn't want any distortion.

There is an old LOW mu octal tube feeding without transformer
the reverb.
And another like 1st stage for gain make up before the PI.

This is one unusual unit for the era and in gneral.
I'd look around for some of these odder tubes and stock in a few.
7199's are not made anymore, though a 6U8 or even 6GH8 should work.

I just picked up a few 7199's and 6GH8's
in Bangkok for a 1st stage preamp I am building.
And see whcih I like best in it.
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Jim Smith


From:
Midlothian, TX, USA
Post  Posted 12 Mar 2009 9:17 pm    
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I'm pretty sure these aren't the same amp. The Sho-Bud Compactra was a tube amp made by Evans. The Sho-Bud Christmas tree amp was a transistor amp made by someone else.
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Stu Schulman


From:
Ulster Park New Yawk (deceased)
Post  Posted 12 Mar 2009 10:21 pm    
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Jim,It's a transistor amp,I think it was designed by Kenneth Cain.As you can tell I don't know how to read a schematic.Stu
_________________
Steeltronics Z-pickup,Desert Rose S-10 4+5,Desert Rose Keyless S-10 3+5... Mullen G2 S-10 3+5,Telonics 206 pickups,Telonics volume pedal.,Blanton SD -10,Emmons GS_10...Zirctone bar,Bill Groner Bar...any amp that isn't broken.Steel Seat.Com seats...Licking paint chips off of Chinese Toys since 1952.
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Dave Zirbel


From:
Sebastopol, CA USA
Post  Posted 12 Mar 2009 10:51 pm    
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Here's one that came with mine.

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Dave Zirbel-
Sierra S-10 (Built by Ross Shafer),ZB, Fender 400 guitars, various tube and SS amps
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Ricky Davis


From:
Bertram, Texas USA
Post  Posted 13 Mar 2009 5:34 am    
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Yes sorry; I got confused, and was only remembering that I thought someone told me that....ah well...but yes the x-mas tree is transistor...and looks to be the dual channel schematic that Dave just posted.
Ricky
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Ricky Davis
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David L. Donald


From:
Koh Samui Island, Thailand
Post  Posted 13 Mar 2009 8:22 am    
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Well that's cool too,
but I am happier seeing the Compactra.

I may try a couple of this unit's ideas.
And post a crosslink to an amp forum for good measure.
Maybe gets some good discussion about it going on.
_________________
DLD, Chili farmer. Plus bananas and papaya too.

Real happiness has no strings attached.
But pedal steels have many!
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