If the speaker has shorted then it's might have taken the power valves and the output transformer down with it (or at least damaged them). Better than an open circuit, but not that much. Let's hope it's just the speaker - though they don't often go wrong these days unless there's something wrong with the amp.
Glad to know you're the sort of chap who's happy to lend an amp out to a mate in need.
Originally Posted by Simon Barden
If the speaker has shorted then it's might have taken the power valves and the output transformer down with it (or at least damaged them). Better than an open circuit, but not that much. Let's hope it's just the speaker - though they don't often go wrong these days unless there's something wrong with the amp.
Glad to know you're the sort of chap who's happy to lend an amp out to a mate in need.
I actually tested the amp with a known good speaker (a Jensen C10Q), and was surprised to find that the amp was working fine, so that meant that the power valves, and the output transformer were all good, I let the owner of the amp know about my findings and he was pretty relieved, he managed to order a replacement speaker for the amp.
Cheers, at the time, I thought that lending my Marshall amp to my mate so he could play a few gigs while his amp was being fixed, was the right thing to do, I think Australians have had a long tradition of helping their mates out in times of need, it's certainly a part of our culture anyway.
Here's a pic of the amp itself, a Fender Deluxe Hot Rod, the light-green tape on the tolex is to remind me not to play through it till it is fixed:
Last edited by DrNomis_44; 09-12-2016 at 07:24 PM.
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