He works.....and he sounds great. But I have no Idea what kind of amp i'am playing.

Here are some pics from above and the inside. Hope it helps a little bit.
And thank you guys, for spending your time for me

https://photos.app.goo.gl/EtQSucwHGfuudByD9

Are photos from the inside maybe helpful?

Thanks for that Yes a lot of modifications but the amp sounds great. But I was wondering about the "ro 100" instead of "or 100". The previous owner told me it is an OR 120 from 1972....but it says ro100... are there any orange amps with RO instead of OR Models?

Sorry, don't know how do post pics in another way.

https://photos.app.goo.gl/RQfaTjJ9RSiMR3EH8 https://lh3.googleusercontent.com/ohKY3y83jkoDK2rBlnBfh5F9bzaEKgWtITEP5C7vsec97UmL8AjcEdxCTmZ_j2iuYiVNq2QIO2lnn3CaIUjcFSktf_5MAahVDiWpcfpM1PC8fVapipXjcVdRAbDZV6sh_rFetCq0nExHUldsc_pzocJQB2ldk111scdTv0QxFSjxBieqp_nsUh1Q12Y5ZY-G3Zwldk5-FQBgRT7JWUnaVle1Xr8h6_...

https://photos.app.goo.gl/s5aYj36zn9VSqULZ9 https://lh3.googleusercontent.com/WkiIfWnGzgMNv4vUIWZ1n_SzqJAQ44nmsd2OmmMNHjjJf3TJuYgfvYojIIyrx_F85eMcV7NIVNQPr7EbaPmrFgDOw3gVjoeJv4HppEZ0E873JQGfyvANCLSXLloz4-w54zhtePEmmiYL9ishtxLufKPgN8owlQLcxzboybjkjjD9irMgmRRush7vBE_g2XT0xwDI9QupBk3h3_Z2ButY1QXqdKsEvz...

Hello together. My name is Frank, i'am from Germany. A week ago I did a swop deal against a Orange Amp. I have no idea about the serial number and the model type. It says model RO 100, I think it means OR 100...or i'am wrong? Serial number is hand written and says 752. Maybe someone can help me. :ro...