Excellent ECC81's made by Blackburn factory of Mullard and labeled for other Philips Group brand names such as Philips, Pope, Miniwatt and Valvo. These are from 1960's and having plates with 3 side holes typical to the classic Mullard ECC81's of early days. NOS and MINT!
Quantity in Stock : 30 pcs
Price : Grade A @ US$39,00/ea ; US$83,00/matched pair
Grade B @ US$35,00/ea ; US$75,00/matched pair
Grade A - The best in the stock. Lowest noise and microphony with the tightest balanced sections we have available. This is typically 10% or often tighter given the large volumes of our stock.
Grade B - Low noise and microphonics with a section balance typically between 15% and 20%, but may be higher depending on available stock.