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Title: Preamp section for a 1W Dumble - why was it changed on the OTS Mini Lunchbox? Post by: jaymenon on August 06, 2023, 01:20:09 PM It's a dream of mine to have a low output Dumble - for practical reasons Nik cannot make me a custom 1W job.
So I thought of going with a 12AU7 output section (single ended or push-pull) A question please for you knowledgeable folk: When Ceriatone made the OTS 20 they changed to a new preamp configuration. Is that because the preamp from the 50W amp will not work nicely with a lower output power amp? What further changes might I need to make in order for it to work with a 1W output power amp section https://imgur.com/Jh28sUx Expert opinions most appreciated... Jay Title: Re: Preamp section for a 1W Dumble - why was it changed on the OTS Mini Lunchbox? Post by: jaymenon on August 06, 2023, 01:27:03 PM Here's a table of the preamp pot values
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