One new NOS RCA 33GY7/A tube
Untested, but fully guaranteed
If this tube is not what you are looking for, please look at the other tubes we have in our store you can search on the type number. When searching our store please do not use the tube type suffix. For example 6SN7 instead of 6SN7GT due to limitations on eBay’s search engine.
How we test our tubes:
Tube and box condition:
Most of our NOS tubes come with original boxes. If a Test on Demandsm NOS tube description does not it will be packed in a new, standard white box.
If any Test on Demandsm NOS tube has an original box in very poor condition we will pack it in a new standard white box.
Since we open all boxes to test them, sometimes the box flaps or tabs are damaged.
All Test on Demandsm NOS tubes will include the tube's test results.
Our simple warranty:
We believe each tube should have an appropriate warranty, regardless if it is used, NOS or NIB, we do not sell as-is. If you are not delighted with your purchase, let us know and we will authorize the return of the tube. We may be able to provide another tube from our large inventory - your choice. To improve our quality, we would like to understand the reason for the return, but it is not a requirement.
Returns must include the original box in the same condition (if applicable), and be packed in the original packaging. Purchaser must pay return shipping fees. When we receive the return, we will refund your purchase price (excluding original shipping fees) within 72 hours. If the package is lost or the tube damaged in shipping, and you took the optional , when you claim on the , we will be happy to help you in any way we can.
We want you to be happy with your purchase, and will work with you if you have any concerns or problems. Please contact us to work out a mutually beneficial solution before writing negative feedback.
About us:
We have a collective 30+ years of experience in electronics and vacuum tubes. We have professional credentials and qualification in electronics and testing. Our staff has designed a significant number of vacuum tube-based equipment. It is not only our business, but also our hobby to design and refurbish vacuum tube equipment.
Our supply of tubes:
We buy all of our tubes from reliable sources and are always on the look out for quality tubes and tube suppliers.
Special thanks to Frank Philipse (whose web site is tubedata.org) and other host sites of vacuum tube data. These are wonderful sites full of PDF specifications of vacuum tubes, we get our data from them.