Welcome, Guest. Please login or register.
Did you miss your activation email?
December 22, 2024, 09:25:27 AM
Home Help Search Login Register
News: Ceriatone Forums are up and running!!!
 
Guests please register
Note: If you want to help you can donate to keep the forums alive.



Do you want to advertise on this forum ? Send me a private message.

Amplified Parts
+  Ceriatone Forum
|-+  British Style
| |-+  18 Watt
| | |-+  schematic to access just the power amp of my 18 watter		 « previous next »
Pages: [1] Go Down Print
Author Topic: schematic to access just the power amp of my 18 watter  (Read 7792 times)
johnnierotten
Newbie
*
Offline Offline

Posts: 14


View Profile
« on: January 08, 2011, 12:54:49 PM »
Does anyone have this info?  Id like to put an input to just drive the power amp so I can use a AMT SS-11 preamp. This preamp was not designed to go in the standard input of a guitar amp. Thank for any info all!
Logged
wyatt
Guest
« Reply #1 on: January 08, 2011, 06:34:10 PM »
You can add Nik's simple interrupt FX loop and just use the return to plug the preamp into.

http://ceriatone.com/images/mods/TMBceriatoneEffect-Loop.jpg

But to exactly answer your question, you the best pre-PI access is the wire that runs between the Normal Ch.'s Volume pot middle lug and the turret board.  On the linked pic, you'll see this wire replaced with the C and D notations for the return jack for the FX loop.

Marshall Model 1974x schematic...
http://www.ampwares.com/schematics/marshall/marshall_18watt_schem.pdf
« Last Edit: January 09, 2011, 04:56:40 PM by wyatt » Logged
johnnierotten
Newbie
*
Offline Offline

Posts: 14


View Profile
« Reply #2 on: January 09, 2011, 04:22:26 PM »
Thank you for the help!!!
Logged
wyatt
Guest
« Reply #3 on: January 09, 2011, 04:58:31 PM »
Oh and I would buy and used shielded wire for the FX loop leads...those are relatively long wires being run across the turretboard, tube sockets, filter and B+ voltage, etc.
Logged
johnnierotten
Newbie
*
Offline Offline

Posts: 14


View Profile
« Reply #4 on: January 21, 2011, 03:12:17 AM »
Thanks Again,I appreciate it!
Logged
Pages: [1] Go Up Print 
« previous next »
Jump to:  


Login with username, password and session length

Powered by MySQL Powered by PHP Powered by SMF 1.1.12 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!

CeriaTone Forum is not afiliated with Ceriatone Amplifications. The CeriaTone and name, logo and related trademarks and service marks, owned by CeriaTone. , are registered and/or used in the U.S. and many foreign countries. All other trademarks, service marks, and trade names referenced in this site are the property of their respective owners.