Tube Matching ?? Maxi-Matching ??


I have hundreds of 45 tubes I would like to at least put in matched pairs......I am not having mush luck finding out anything about that industry....THANKS
autospec
Jond4:     You haven't done enough business on the inter-net to be able to say that.........I've called the company , no answer, no return calls, I've emailed them with no answers and you think I should send them 775.00 for something I can't even find out will work for what I need to do with it.................Sir I have already done those kind of transactions and they are a complete waste of time, pretty much like this is becoming......I would be far a head of thee game to just send my tubes to "APEX" and have them matched and sent back..................
@autospec Decades ago Tektronix made a curve tracer plug-in for their oscilloscopes. It would display the linearity curve of the tube under test, allowing you to know that it was both statically and dynamically matched to another tube with the same curve. That's the best way to match tubes. Most of the tube matching I've seen simply gives you a static test, which you can obtain from a tube tester. Such a test won't give you any information about how one tube matches another when signal is present.

Fortunately curve tracers are not that complex. Here's a construction article:https://www.instructables.com/Tube-Curve-Tracer/

Hello to everybody.

 

I’m from Italy, I have a Company, dBevolution.

I would like to write something about my experience with Maximatcher and the Sales Manager Mr. Peter.

I ordered and paid one Maximatcher and one Maxipreamp on 8 November 2021 (order No. 606).

Today 27 May 2022 (after more than 6 months) I didn’t receive the instruments, Italian customs told me that the attached documentation from the seller was incomplete, The parcel was sent back to the seller MORE than 3 months ago, but Mr. Peter didn’t refund me.

I sent him many email, I wrote him to open a dispute with the carrier (shipment was insured), but he never sent me a refund and I never received the instruments.

I’m going to take a legal action.

So…pay attention before to buy from him