No.Are the tube amplifiers supposed to reflect sounds when the table they are on or the body of the amp is hit (like with the fingers)
I recently got a small tube amp and is doing this, not sure is a regular (bigger) amp will do it.
THE SKY IS FALLING. WEAR SAFETY HELMET AT ALL TIMES.All tubes are microphonic. Some not much. Some way too much.
Many capacitors are microphonic. Some coax cable is too.
By definition, OS tubes are not being made any more.weird thing is that it is the "NOS" that I recently added. (note this was a Chinese made amp with cheap tubes) so adding the RCA should have improved.
LOL ... I buy all my tubes from eBay. You can figure out who the legitimate sellers are just look at their feedback and you can usually weed them out by how they post test results and what tester they used. I've bought hundreds of tubes that way and not sure I ever had a bad one yet.
What tube type does your amp take?
Tubes (thanks God) age/wear sllloooowwwwllllyyyyy unless you redplate , overvolt or abuse them in some way.So the question now is, if I only use the tube that is microphonic with a headphone, will it sound good or still its characteristics will be changed and sound worse?
THE SKY IS FALLING. WEAR SAFETY HELMET AT ALL TIMES.
I have 4 hammond organs three with 23 tubes and one with 14. I have a ST70 (7) & PAS2 (5). None of the above make noise in the speaker at idle when I tromped around on the wood floors of my houses. The 1961 AR turntable sure did, so I sold it off.
One of the Hammonds has 10 uf caps in it replaced with aerovox gold ceramic. No problem with those either.
So the stock of tubes I have are of the "not very much microphonic" category.
I buy used organs on craigslist instead of "NOS" tubes on ebay. Much better source of tubes never removed for cause or red plated for that "special sound".