Lee_M
Well-known member
I've seen max grid leak resistor (Rg1) values listed on some datasheets, the Mullard ECC83 datasheet specifies it as 2M maximum under the "limiting values" section on page 5, but I often see that value exceeded in real life circuits, such as the Ampeg SVT (which uses a 5M6 grid leak resistor on the first stage), or the Hammond AO-28 amplifier (which uses 3.3M at the 2nd section of V4).
What are the implications and risks of exceeding the rated Rg1 values for small signal tubes like the ECC83, 6SL7, 6SN7, etc?
http://www.r-type.org/pdfs/ecc83-1.pdf
What are the implications and risks of exceeding the rated Rg1 values for small signal tubes like the ECC83, 6SL7, 6SN7, etc?
http://www.r-type.org/pdfs/ecc83-1.pdf