Thread: Quad 405-2 help
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Old 11th Jan 2019, 12:55 am   #5
soundray
Retired Dormant Member
 
Join Date: Jan 2019
Location: New Malden, Surrey, UK.
Posts: 8
Default Re: Quad 405-2 help

Thanks all for the replies.

stevehertz

I have been a sound engineer/recordist for many years and have always had a maintenance department to do the electronics and sort out any problems. Now that I’m semi retired I have started to take the top off and look at these things as a bit of a hobby.

I’ve only looked at vintage Quad amps so far, a couple of 33s and 303s and a 405, all of which have had original caps, trimmers, etc, so I considered changing them to be a sensible starting point anyway rather than just a random act.

My experience so far has been that changing these old caps, trim pots and the occasional transistor and checking/setting some adjustable voltages has cured most problems. Lucky I guess. This one is clearly beyond that and beyond my experience, hence asking for any pointers.

I did a Google search for 405-2 problems and arrived here as, having read a few posts, it seemed to have knowledgeable contributors and might be the most helpful to an amateur like me.

Whaam68

I will check out the Dada electronics site in more depth, thank you.

nutteronthebus

Thanks for info, I will check and replace them.

Ray
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