Thanks for the tip Ghosthouse. I hadn't heard of tubemonger. I checked out the site and they have quite a bit of NOS tubes that are a bit different than what I saw on other sites. I shot them an e-mail about my JoLida 502P and the power tubes I'm going to use with it and to my surprise I got an e-mail reply back with suggestions a couple of hours later. Here is the suggestions I received:
12AT7 tube suggestions:
Siemens & Halske E81CC - 1966 MINT NOS 3-MICA 6201 Munich W. German Prem. ECC81 12AT7 (neutral and very musical)
BRIMAR CV4033 - MINT NOS 1960-62 Military Black Plate Prem. Grade Long Life ECC81/CV4024/12AT7 Halo Getter STC Prod ENGLAND Factory Tested (more British sound with emphasis on midrange)
12AX7 tube suggestions:
MULLARD CV4035 M8214 - MINT NOS NIB 1961 Military Box Plate Prem Grade Long Life M8137 ECC83 CV4004 12AX7 Wrinkle Glass Halo Getter Whyteleafe Prod. Dual Logo Old Shield and CV - Gt. Britain (rich midrange)
BRIMAR CV4035 - MINT NOS NIB 1961 Military Box Plate Prem. Grade Long Life ECC83/CV492/CV4004/6057/12AX7 Halo Getter STC Prod. ENGLAND (neutral and very musical)
Tungsram ECC83 12AX7 - MINT NOS NIB OCTOBER-NOVEMBER 1970 - Hungary (great tube at midprice)
Between Brent Jessee's recommendations and tubemonger's recommendations NOS tubes for my JoLida are going to run me over $250 easily for pairs of 12AX7s and 12AT7s.
12AT7 tube suggestions:
Siemens & Halske E81CC - 1966 MINT NOS 3-MICA 6201 Munich W. German Prem. ECC81 12AT7 (neutral and very musical)
BRIMAR CV4033 - MINT NOS 1960-62 Military Black Plate Prem. Grade Long Life ECC81/CV4024/12AT7 Halo Getter STC Prod ENGLAND Factory Tested (more British sound with emphasis on midrange)
12AX7 tube suggestions:
MULLARD CV4035 M8214 - MINT NOS NIB 1961 Military Box Plate Prem Grade Long Life M8137 ECC83 CV4004 12AX7 Wrinkle Glass Halo Getter Whyteleafe Prod. Dual Logo Old Shield and CV - Gt. Britain (rich midrange)
BRIMAR CV4035 - MINT NOS NIB 1961 Military Box Plate Prem. Grade Long Life ECC83/CV492/CV4004/6057/12AX7 Halo Getter STC Prod. ENGLAND (neutral and very musical)
Tungsram ECC83 12AX7 - MINT NOS NIB OCTOBER-NOVEMBER 1970 - Hungary (great tube at midprice)
Between Brent Jessee's recommendations and tubemonger's recommendations NOS tubes for my JoLida are going to run me over $250 easily for pairs of 12AX7s and 12AT7s.