I might have linked to this list of Soviet factory codes previously. You can have it translated if you find this useful or you can train your kyrillic understanding.
https://istok2.com/factories/
https://istok2.com/factories/
I bought this for my other tube amp which is manual bias and the built in Vu metre is not accurate . I only use it in UltimatE when i put in new tubes to see if both are working properly as we only have one set of test points . I like to see what both tubes are doing as I have had a couple of faulty tubes lately . You definitely don't need it with UltimatE but I have it so may as well use it .Can you use this box where you are attached to the. side how much current the tubes draw and thus determine whether the tubes are faulty?
If so, where did you buy it?
My adapters also arrived today , so I will be trying that exact combo soonJust pop in Mullard ECC35 long glass with ITT 5b/254a and it's a new dawn. My fav drivers are ECC35 and c3g. Every other drivers are just playing catch ups. ymmv.
My adapters also arrived today , so I will be trying that exact combo soon
This is a Russian made Ulyanovsk tube from September 1974 masquerading as a US made Philips.
All the markings were removed including the date but a thoughtful comrade worker wrote the date inside the tube on the top mica.
one of the adapters did not work , hopefully they will send a replacement, very frustrating !!Wear crash helmet when you try that.
Again ???!!! How can they be so shoddy all of a sudden?one of the adapters did not work , hopefully they will send a replacement, very frustrating !!
They said they will send adapter replacement and asked if i could check it with multimeter , not sure how , all i can really do is test for continuity ?
eh? she asked me if I had a multimeter and if I could test my faulty adapter because she can't understand why it doesnt work .why would there be a need to check when my worked?