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llama · 21st Dec 2016, 5:52 pm

Success or stupid? - well I wouldn't bother again!

During a series of house moves the plug-in boards in the back of said pre-amp were removed and, so far, remain unfound.

I found a piece of prototyping board and cut it down to size, populated it with the correct components and wired it underneath. It took much much longer than expected but it only cost time and resulted in the pre-amp getting back into service.

What it threw up is that different issue numbers of the adapter board had some component differences and the circuit diagram I initially downloaded was wrong compared with the adapter board I was copying from another 33. So I've scanned my circuit diagram and will post that for discussion in Audio.

Meanwhile, the picture shows what I ended up with.
Graham

21st Dec 2016, 5:52 pm	#1
llama Octode Join Date: Jun 2006 Location: St Osyth, Nr Clacton, Essex, UK. Posts: 1,482	Quad 33 tape adapter Success or stupid? - well I wouldn't bother again! During a series of house moves the plug-in boards in the back of said pre-amp were removed and, so far, remain unfound. I found a piece of prototyping board and cut it down to size, populated it with the correct components and wired it underneath. It took much much longer than expected but it only cost time and resulted in the pre-amp getting back into service. What it threw up is that different issue numbers of the adapter board had some component differences and the circuit diagram I initially downloaded was wrong compared with the adapter board I was copying from another 33. So I've scanned my circuit diagram and will post that for discussion in Audio. Meanwhile, the picture shows what I ended up with. Graham Attached Thumbnails __________________ Half my stuff is junk - trouble is, I don't know which half!