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snowman_al · 15th May 2019, 11:10 am

Are you sure that is the diagram for your amplifier.
There are a few different output types for the same 'name' of amp. Some with single rail and output cap, some with dual rail no cap. Some with darlingtons, some individual transistors.
A picture (or list of actual transistors) might help?

I would be concerned with 0.5A current with no signal! I would expect idle to be 30 or 40mA.
Did you check DC offset and reset the bias? Did the heatsinks get hot soon after switch on?

Alan

15th May 2019, 11:10 am	#3
snowman_al Octode Join Date: Dec 2018 Location: Llandeilo, West Wales, UK. Posts: 1,092	Re: Creek 4040 help please! Are you sure that is the diagram for your amplifier. There are a few different output types for the same 'name' of amp. Some with single rail and output cap, some with dual rail no cap. Some with darlingtons, some individual transistors. A picture (or list of actual transistors) might help? I would be concerned with 0.5A current with no signal! I would expect idle to be 30 or 40mA. Did you check DC offset and reset the bias? Did the heatsinks get hot soon after switch on? Alan __________________ Never Leave Well Enough Alone...