I need help / advice with the 300B vacuum tubes of my LM-219IA integrated amplifier. How can I check if the standard 300B have a problem?
I made a check of the bias and especially with the V3 I was unable to adjust the exact bias as described in the operation manual.
Even if I...
Reading the "bias adjustment section", I understand that when it says "Before adjustment please
select v1 / v3 or v2 / v4 position. 845: IA = 70mA, 300B: IA = 50mA "
On the front panel (845) I select V1-V2;
Set the number scale (1, 2, 3, etc.) to 7, set the number scale (0, 10, 20, etc.) to 0...
I have a doubt. Reading the manual of the LM-219IA I did not understand how to perform the bias adjustment.
Can you explain step by step how to do it? What is the difference between the selectors on the integrated front panel and those on the top of the integrated one? Thank you.
A few days ago I contacted a seller to purchase psvane acme vacuum tubes (http://psvaneaudio.com). The prices are very competitive and the seller is kind and willing to negotiate the price. In these days I have searched the site again to update myself on the prices of the vacuum tubes but it is...
Thanks for the reply.
I have read in various forums that Robert is a seller known and appreciated not only in Singapore, but also in the United States and Australia.
I would like to buy the Line Magnetic LM-219IA from Robert. In Europe it is difficult to find and has a high cost.
I would be interested in purchasing a Line Magnetic LM-219IA integrated amplifier. I have read the opinions of various owners who claim to notice significant improvements by replacing the original 12ax7 valve with NOS telefunken. @ Saleh84 where did you buy your telefunken? The price?