Egnator Rebel Combo Service Summary
Egnator Rebel Combo Service Summary. Again worn valves but other less obvious issues to be addressed.
Other Amps
Trace Elliot GP7SM 150 watt Bass Amp Repair
Okay so I relented and worked on an amp with not one single lonely valve/ tube inside. Time to fix a Trace Elliot GP7SM bass amp. I will have therapy to overcome this valveless trauma. I agreed to work on this amp for a nice customer because it had suffered mechanical damage. A relatively easy repair. It lead to me discovering a bit of amp archeology that I thought I would share. I found it
Peavey Classic 30 Restoration
A Peavey Classic 30 Restoration was undertaken. Initially it was taken in for just a repair. It had sat in a garage for many years. There was rust on the face plate so a good indication dampness had got to the amp too. The amp had been switched on by the owner and it was totally dead. Having gone through the amp I can now provide details of the autopsy. The electrolytic capacitors in the
ART PRO MPA II Tube Microphone Amplifier Safety Concerns check this out
An ART Pro MPA II Tube Microphone Amplifier arrived for repair. This two channel unit uses two 12AX7 valves. They are made in China. The fault was blowing mains fuses. I dismantled the unit and was very surprised to see that the power switch does NOT isolate the 230volts AC mains. It only switches on and off the low voltage to the main board !! The transformer is connected permanently to the mains no matter
ART PRO MPA II Tube Microphone Amplifier Safety Concerns check this out Read More »
Ampeg B200R a Sad Tale…maybe you can advise us?
We were asked to have a look at an Ampeg B200R bass amp. This is a Chinese built amp and is known to have a few challenges. Faults include badly fitting chassis in the case resulting in the chassis being damaged and known to fail when the speaker is switched from ” no horns” to “horns” jack socket. This failure mode is caused by the panel which is mounted in the chassis with the speaker
Unexpected Valve wear in an Orange Rockerverb 50 MkIII
Over the weekend I had the pleasure of doing a quick service on and Orange Rockerverb MkIII. The amp is just coming up on two years old and gigged at least every week. The owner reported that the amp was creating murky distortion and it sounded so horrible it was no longer useable. So this amp is experiencing a lot of lugging around and used at giigs lasting 3 hours or more. He was leaving
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Ashdown Evo II 300
This is essentially a solid state amp so before I get shot down in flames, my defence is that there is one valve in this amp which is there to warm up the sound. This Ashdown Evo II 300 is a 300 watt amp with twin 12 inch speakers. It is very well constructed with great access to the key parts of the amp This Ashdown Evo II 300 was distorting and sounded terrible. When
