Standel Studio SG12

William Hughes · Post by **William Hughes** » 13 Sep 2017 11:52 am

I just aquired a Standel Studio SG12. A friend gave it to me, he asked me if I wanted a project amp. He said it was noisy. I plugged a guitar into it and tried it out. It crackled and hummed but sounded pretty good. I cleaned all the pots jacks and switches with Deoxit. It now sounds perfect. Crystal clear, articulate with great note separation. Its got a great reverb and tremolo. The only problem i see is the speaker is a 8 ohm Fender Oxford i think 1958. It should be 4 ohm. I have two questions, what is the light bulb on the output for and what is the jack on the back right labled signal line.
Thanks Will

Mike Wheeler · Post by **Mike Wheeler** » 13 Sep 2017 12:58 pm

That lamp is there to help prevent a short circuit of the output stage.

BTW, the '69 schematic I'm looking at says it's valid for all Custom and Studio models, and it says that an 8 ohm speaker is correct for the Studio 12 and 20 models. All other '69 models are 4 ohm outputs.

Here's a link to the schematic I'm looking at...
http://www.standelamps.com/support/sche ... 012-02.pdf

William Hughes · Post by **William Hughes** » 13 Sep 2017 1:09 pm

Thanks Mike