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cambush · 27th Oct 2021, 10:06 am

Sorry, thanks - got it! I've got the filter PCB out now and see that it is marked 6185C - the one in your manual is 6185B. I can see a couple of differences (e.g. mine has two slightly different DC supply voltages) but hopefully they'll be similar enough for me to make progress. Having pretty much dismantled the whole thing, I have to say that they must have been a nightmare to manufacture!

27th Oct 2021, 10:06 am	#23
cambush Triode Join Date: Oct 2021 Location: Cambridge, Cambridgeshire, UK. Posts: 20	Re: Bush Arena BH4000 Sorry, thanks - got it! I've got the filter PCB out now and see that it is marked 6185C - the one in your manual is 6185B. I can see a couple of differences (e.g. mine has two slightly different DC supply voltages) but hopefully they'll be similar enough for me to make progress. Having pretty much dismantled the whole thing, I have to say that they must have been a nightmare to manufacture!