davemintynz
New member
- Joined
- Feb 6, 2010
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Hey guys
Got a couple of problems and thought id see if I could get some help from here first before spending a fortune getting a tech to fix something that may be simple to fix.
Ive got a Dual Rectifier Solo running into a Orange 4x12 Cab which i bought second hand. The last owner had it serviced where the tech fitted a Fender/Sovtek power tube but left the other MESA tubes in there, which is a bit of a concern to me as they obviously not matched. Also this was a USA import amp so im having to run a 240V Power Transformer to convert the New Zealand 240V Mains power to suitable voltage. Also noticed when switching the standby off there is a large spark in the Sovtek power tube.
First Problem only happens bout once every month. Ill be playing away at high volume when all of a sudden the volume will drop off and it will go all "crackly" sounding and it will go away and be fine if i turn it onto stand by and wait 5 minutes.
Second Problem - When i switch the rectifier switch from TUBE RECTIFICATION to SOLID STATE RECTIFICATION the two power tubes furthest to the left (one of them being the Sovtek tube) rapidly get really hot and glow bright orange! which in-turn causes the fuse/breaker on the Power Transformer to blow.
Is it possible that the un-matched / Sovtek tube are causing the problem?
Hopefully someone out there can help me PLEASE!
Got a couple of problems and thought id see if I could get some help from here first before spending a fortune getting a tech to fix something that may be simple to fix.
Ive got a Dual Rectifier Solo running into a Orange 4x12 Cab which i bought second hand. The last owner had it serviced where the tech fitted a Fender/Sovtek power tube but left the other MESA tubes in there, which is a bit of a concern to me as they obviously not matched. Also this was a USA import amp so im having to run a 240V Power Transformer to convert the New Zealand 240V Mains power to suitable voltage. Also noticed when switching the standby off there is a large spark in the Sovtek power tube.
First Problem only happens bout once every month. Ill be playing away at high volume when all of a sudden the volume will drop off and it will go all "crackly" sounding and it will go away and be fine if i turn it onto stand by and wait 5 minutes.
Second Problem - When i switch the rectifier switch from TUBE RECTIFICATION to SOLID STATE RECTIFICATION the two power tubes furthest to the left (one of them being the Sovtek tube) rapidly get really hot and glow bright orange! which in-turn causes the fuse/breaker on the Power Transformer to blow.
Is it possible that the un-matched / Sovtek tube are causing the problem?
Hopefully someone out there can help me PLEASE!