A lovely 1964 Vox AC30/6 came along as it was felling a bit poorly. The amp sounded- well- just not like an AC30 should. The vibrator / tremolo pedal had…
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….
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…
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…
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…
The Fault A nice Tone King Imperial Mk1 ( http://www.toneking.com )arrived with a strange fault. When you turned up the reverb control there was this horrible buzzing sound which increased as…
A two rock Gainmaster 35 arrived for a service. It is manufactured by the Premier Builders Guild LLC. A fancy name! The amps are made in California and are around…
A Laney VH100R amp head came in for a service. While “nothing” was wrong with it, the owner decided just to have its health checked out. This is a really…
I received an Orange Tiny Terror for repair. It had lost its voice ! I had never worked one of these amps so an exciting new experience. It is built…
A Marshall JCM900 100 Watt Combo arrived in the workshop. This version is the 4102 It was very poorly. The first issues seen were : 10 amp fuse in the plug!!…
The early (1997-2003) Marshall JCM2000 DSL50, DSL100, TSL100 and TSL122 amps are often troubled by an unstable bias (drifting bias). These are nice amps and I have one myself This…