Tube Recto JMP 50
Moderator: VelvetGeorge
- gibboau
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Tube Recto JMP 50
Hi guys, this is my 1st post in this forum. First of all id like to thank all of you for the great informational posts on the forum, I
- Brian Wallace
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- MacGaden
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- gibboau
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Hi guys thanks for the posts, seems like it would be easier to build Georges PTP kit, just trying to keep it simple the 1st time round
but here is the link to the layout of the 68 tube recto:
http://homepage.mac.com/gaden/.Public/jmp50_1968.jpg
also did some searching and found a guy on this forum who has a early 68 with a tube recto.. I've had a quick look and compared the JTM45 layout with the one above and there are common components.
eager to get my fiddy-watt started
mike
but here is the link to the layout of the 68 tube recto:
http://homepage.mac.com/gaden/.Public/jmp50_1968.jpg
also did some searching and found a guy on this forum who has a early 68 with a tube recto.. I've had a quick look and compared the JTM45 layout with the one above and there are common components.
eager to get my fiddy-watt started
mike
- MacGaden
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Thatgibboau wrote:Hi guys thanks for the posts, seems like it would be easier to build Georges PTP kit, just trying to keep it simple the 1st time round
but here is the link to the layout of the 68 tube recto:
http://homepage.mac.com/gaden/.Public/jmp50_1968.jpg
also did some searching and found a guy on this forum who has a early 68 with a tube recto.. I've had a quick look and compared the JTM45 layout with the one above and there are common components.
eager to get my fiddy-watt started
mike
MacG.
"Play it right, Dad ! No More Dwiddely Dwiddely !
My son Adam at 3 years old. Best advice I ever got..
"Play it right, Dad ! No More Dwiddely Dwiddely !
My son Adam at 3 years old. Best advice I ever got..
- Flames1950
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- MacGaden
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Billy Batz has access, and can post there. Somebody must have asked for it.gibboau wrote:hey MacG, thats a great site... great layouts!! any idea where that tube recto JMP layout come from?
Flames1950 wrote:It was drawn up by a guy that posts at Plexi Palace, when the amp was on his bench getting some work done. His name is in the corner of the drawing.
Ahh yes: The "Joint" caps layout, now I remember !
It says it
MacG.
"Play it right, Dad ! No More Dwiddely Dwiddely !
My son Adam at 3 years old. Best advice I ever got..
"Play it right, Dad ! No More Dwiddely Dwiddely !
My son Adam at 3 years old. Best advice I ever got..
- Brian Wallace
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Drawing
I really don't care for that drawing as it has too many added parts to it. This is not a stock amp. Also, 67 is the JTM50 year. This is a very short lived amp as is the 784-128 OT.
Mac,
The 100V tap is the main difference in the 128 and yes, you can use a 139 to build a JTM50.
Mac,
The 100V tap is the main difference in the 128 and yes, you can use a 139 to build a JTM50.
- MacGaden
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- MacGaden
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- Joined: Wed Apr 20, 2005 5:57 am
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Cool. For the sounds you prefer you might consider ordering extra caps, so you could turn it into a bass version, with shared cathode, 56k/pf tonestack, 0,1 output couplers.. Or something in between.
MacG.
"Play it right, Dad ! No More Dwiddely Dwiddely !
My son Adam at 3 years old. Best advice I ever got..
"Play it right, Dad ! No More Dwiddely Dwiddely !
My son Adam at 3 years old. Best advice I ever got..