Main PCB Parts to Purchase Purchase all parts in sets of two unless otherwise noted R - 270pf 500V CDE Silver Mica Capacitor | Part #: CD15FD271FO3F | Qty. 2 R - 33pf 500V CDE Silver Mica Capacitor | Part #:  CD15ED330GO3F | Qty. 2 R - 100pf 500V CDE Silver Mica Capacitor | Part #: CD15FD101FO3F | Qty. 2 R - 787k 1/2W Resistor .1% 15ppm | Holco Part #: 279-H4787KDYA | Qty. 2 Note: Or 2x Each 680k and 110K resistors to get 790k. 1/4 or 1/2W ok here.) Note: If you want to splurge on a nice resistor this is the place… Rhopoint or Tepro or whatever floats your boat… To get even closer to the 790k ideal you can use the second option of two resistors in a series. These two resistors should be of the same type as they will be placed in a series to attain 790k. 1uf 400V Vishay Roederstein MKP-1839  | Part #: MKP1839510401 .15uf 400V Sprague 715P | Part #: 715P15454LD3 100uf 16V Elna Silmic II | Part #: RFS-16V101MH3#5 1uf 160V Vishay Roederstein MKP1839 | Part #: MKP1839510164 47uf 400V Panasonic EE Series Electrolytic | Part #: EEU-ED2W470 | Qty: 6 .47uf 400V Sprague 715P | Part #: 715P47454MD3 | Qty: 6 Note: Thorsten originally specified 100uf. If you want to go further you can try 6x Nichicon LKX 100uf  450V | Part#: LKX2G101MESY35 and 6x Panasonic 1uf 400V Part#: ECW-F4105HL O.1uf Panasonic | Part #: Film Capacitors 63V .1uF 10% Part #ECQ-E12104KF | Qty: 3 Note: Across tube heaters C 680k 1% Dale RN60 (2M Resistor Replacement if using an NOS tube in V2) | Part #: RN65D6803FB14 Note: 680k for NOS Tube in V2 - 2M 1% Vishay Dale CMF/RN60 Note: For current production tube in V2 68k Dale CMF60 Resistor | Part #: CMF6068K000FHBF (Only required if using a stepped attenuator) 100R Ohmite Little Demon Carbon Composition | Part#: OD101JE (Thorsten Mod. Carbon composition, while usually not used in audio, it is important here for taming oscillations) 51k Vishay / Sfernice | Part #: RCMS0551001FHS14[/li]