OTR 120

Orange Amps Technical Q&A's

Moderator: bclaire

Post Reply
smtymagoo
New Member
Posts: 6
Joined: Sun Aug 11, 2002 5:31 pm
Location: USA

Post by smtymagoo » Sun Aug 11, 2002 5:36 pm

I was playing my amp the other day and it just cut out. It's been over a year since i 've had it so I think it might be the tubes, but I don't know too much about how to fix that stuff. If it is the tubes are they easy to change? and if not what should i do? thanks

BLACK LAMB
New Member
Posts: 7
Joined: Fri Aug 02, 2002 5:25 am
Location: USA

Post by BLACK LAMB » Mon Aug 12, 2002 12:36 am

What do you mean by "Cut out"? Do you still get power? Did you blow a fuse? Did the amp smoke or make any other weird smells or sounds?

Let me know and I'll try to help more.



www.blacklambrocks.com
RAM A LAMMA FA FA FA
www.blacklambrocks.com
RAM A LAMMA FA FA FA

smtymagoo
New Member
Posts: 6
Joined: Sun Aug 11, 2002 5:31 pm
Location: USA

Post by smtymagoo » Sat Aug 17, 2002 10:33 pm

i was playing, then all of the sudden there was no sound, it still turns on. and all the tubes look like they are lit, but there is no sound coming out. the cab still works with my other head so it is not the cab. do you think it's a fuse or a tube? and is it hard to fix? thanks

stigroarhusby
New Member
Posts: 1
Joined: Fri Aug 23, 2002 11:52 pm
Location: Norway

Post by stigroarhusby » Sat Aug 24, 2002 12:13 am

sounds like a problem with your output transformer. one failing tube would hardly cause the amp to "cut out". and since the tubes are still glowing, (and, I guess, the pilot light as well), the problem is most likely to be found downstream of the bottles. between the power tubes and the speaker output resides not much, aside from that very transformer. the fact that the amp cut out abruptly, when considering the tubes still seem to be operable, could suggest a short-cut in the secondary coil of your output transformer. do not switch your amp on until you've had it fixed. most likely, the power stage meets infinite or insufficient resistance, and running a signal through an unloaded tube amp will break the amp according to the following scheme: first output transformer, then power tubes. and if your output transformer's blown, the tubes are the next thing in line.

go see the homepage.
go see the homepage.

pgmlml
New Member
Posts: 11
Joined: Thu Apr 25, 2002 9:01 pm
Location: Portugal

Post by pgmlml » Mon Aug 26, 2002 11:52 pm

I think you should check the fuses first.
Then check all tubes (pre amp and power amp)...

pgmlml
New Member
Posts: 11
Joined: Thu Apr 25, 2002 9:01 pm
Location: Portugal

Post by pgmlml » Mon Aug 26, 2002 11:52 pm

I think you should check the fuses first.
Then check all tubes (pre amp and power amp)...

pgmlml
New Member
Posts: 11
Joined: Thu Apr 25, 2002 9:01 pm
Location: Portugal

Post by pgmlml » Mon Aug 26, 2002 11:53 pm

I think you should check the fuses first.
Then check all tubes (pre amp and power amp)...

BIGFLASH
New Member
Posts: 2
Joined: Sun Sep 15, 2002 4:01 am
Location: USA

Post by BIGFLASH » Sun Sep 15, 2002 4:02 am

ANYONE KNOW WHERE ICAN LOOK UP SSPECS ON AN OTR 120 AND/OR FIND ONE TO PURCHASE ???

BIGFLASH
BIGFLASH

BIGFLASH
New Member
Posts: 2
Joined: Sun Sep 15, 2002 4:01 am
Location: USA

Post by BIGFLASH » Sun Sep 15, 2002 4:02 am

ANYONE KNOW WHERE ICAN LOOK UP SSPECS ON AN OTR 120 AND/OR FIND ONE TO PURCHASE ???

BIGFLASH
BIGFLASH

Post Reply

Who is online

Users browsing this forum: No registered users and 50 guests