Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Instruments and Amps Everything that makes music, Especially including instrument amps.

mod for roland 405 amp
mod for roland 405 amp
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 10th September 2002, 12:42 AM   #1
DanTheBluesMan is offline DanTheBluesMan
diyAudio Member
 
Join Date: Sep 2002
Location: new england, usa
Question mod for roland 405 amp

Newbie poster here. did a search, not successful. I have a Roland 405 guitar amp that I want to modify. I want to add 1/4" output jack for main speaker output, put a 1/4" plug on the speaker wire. similar to many tube combos.
I also want to disconnect the speaker shutoff of the headphone jack. I want to use the headphones while playing, and the speaker outputs to a load box for recording. Gee, it sounds like I want it all.
More newbie questions. Are ss amps as dangerous as tube amps to work on? What precautions should i take? Any good introductory references for beginners? Thanks for all replies. Dan
  Reply With Quote
Old 10th September 2002, 07:39 AM   #2
hugobross is offline hugobross  Europe
diyAudio Member
 
Join Date: Jun 2001
Location: Flanders, Belgium
Default Re: mod for roland 405 amp

Quote:
Originally posted by DanTheBluesMan

I also want to disconnect the speaker shutoff of the headphone jack. I want to use the headphones while playing, and the speaker outputs to a load box for recording. Gee, it sounds like I want it all.
More newbie questions. Are ss amps as dangerous as tube amps to work on? What precautions should i take? Any good introductory references for beginners? Thanks for all replies. Dan
when you 've got a look at the female jack inside the amp, you see (or you can measure) a kind of switch that makes or breaks the contact when put your headphone jack in. just cut the wires of the switch, maybe you've got to solder them together...

when you work at amps, always be sure that the mains aren't connected and beware of the dangerous voltage at the capacitors even when the amp isn't connected to the mains!!!
So never hit the supply rails without measuring the voltage at it.
also be careful with using old capacitors: they can explode and/or burn; so use some eye-protection then...

what references do you mean? do you want to make your first ss-amp?

best regards,
HB.
  Reply With Quote

Reply


mod for roland 405 ampHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Looking for Roland KC-550 sechmatics ATech Instruments and Amps 1 19th May 2012 06:42 AM
Roland Spirit Bass 50 peobus Instruments and Amps 4 20th November 2008 09:51 PM
Schematic for Roland PM-30 BrianDonegan Instruments and Amps 0 17th July 2008 08:50 PM
WTB: Roland M1000 tf1216 Swap Meet 0 30th November 2005 01:21 PM
Schema for Roland M-1000? Ryssen Instruments and Amps 0 29th October 2005 06:30 PM


New To Site? Need Help?

All times are GMT. The time now is 05:59 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki