Current production products that we keep in stock are the RM-10 and RM-200. Those can be purchased on our site tubeaudiostore.com or by contacting sales which is still roger@ramlabs-musicreference.com. That address is handled by my sales staff currently.
Things like the RM-4+ are made me personally and can take some time. Please contact me directly at ramtubes@gmail.com for prices and delivery.
Those who know me understand that I am not a hurry-up kind of guy. I only do good work and sometimes other things (life for instance) demand my attention. Let's all be patient with one another.