BOM for hellfire modulator:

TUBES:
V1    6AL5 (or 6097)  plate voltage rectifier tube
                      (B7G base - E7-1 miniature button 7pin)
V2    6AK5/5654  (or 6AU6/6BA6/5749)  pentode preamp
                 (6AK5 recommended.) (B7G 7BD miniature button 7pin)
      eric says: try different 6AU6s and 6AK5s
                 different pentodes will give different sound
V3,5  6AQ7/6BQ7 (6BK7,6BZ7,6BZ8)  PWM and LFO (B9A 9 pin)
V4    6AR8/6JH8/6ME8  beam deflection tube
                      (6ME8 sounds different)  (B9A  9pin)

Sockets:
  http://www.nj7p.org/Tube.php
  look up each tube spec
  most are 9 pin sockets
  get the soclets from antique electronics - get NOS
  http://www.tubesandmore.com/

TUBE SOCKETS:
V1,2
B7G base
SOCKET, 7 PIN, MINIATURE, MICALEX, TOP MOUNT
Mounts in 5/8" chassis hole on 7/8" centers.

V3,4,5
Base B9A
SOCKET, 9 PIN, PC MOUNT - 3/4" chassis hole, 1" mounting centers,
         top mounting.


TRANSFORMER:
T1    2x6.3V   DUAL PRI MOUSER 553-VPS12200   (0.5A)
T2    6.3VCT 2A JAMECO 102162
      6.3VCT/1.2A JAMECO 102163 could also work (in stock)
      need CT primary and CT secondary

Transformer One
  Primary:   120 volts in
  Secondary: two 6VAC outputs
    - One goes to power the tube heaters
    - The other goes to transformer two...
Transformer two
  Primary:   6VAC volts in
  Secondary: 120 VAC volts out, fed to the filter capacitors


POTS (all linear):
VR1,4,5                 3x 2.5M pot
VR2,3,6                 3x 100k pot

RESISTORS (all 1/2W unless specified):
NOTE: I got all 2W, they're the right size, and cheap enough...
      look just like the 1/2W's, but bigger...
R6,9,20,29              4x 1M
R14,15                  2x 360k
R16,17,28               3x 240k 1W
R26                     1x 240k
R19,30,25               3x 100k
R99                     1x 100k 2w (eric told me... or 2.2M eric told brian???)
R8,23                   2x 33k  1W
R5,10,11,13,24          5x 10k
R7,22,21                3x 10k  1W
R27                     1x 2.7k
R12                     1x 1k
R1,2,3,4                4x 470  1W
R18                     1x 470

CAPS (all 250V or higher):
C5,6,7,8,10,11,14,15   8x 220nF
C13                    1x 100uF  (Electrolytic)
C1,2,3,4               4x 47uF / 250V Electrolytic
C9                     1x 2uF
C12                    1x 2200pF
C16                    1x 220nF  (or smaller..  get an assortment to try.)

JACKS:
4x switched stereo jacks:
  audio in  1/4 jack (mono)
  AUDIO OUTPUT  1/4 jack (stereo)
  VCA CV in  1/4 jack (mono / switched)
  Beam PWM/CV Input  1/4 jack (mono)

4x SPST switches:   (futurlec SPDT11	SPDT on-on Miniature Toggle Switch)
SW1   LFO ON  SPST sw
SW3   RANGE   SPST sw
SW2   PWM BYPASS SPST sw
SW4   POWER   SPST SW...

1x POWER   INLET
1x POWER   FUSE (slow blow 1/2 amp 250 volt rated  fuse  (25W??))
1x case... rubberfeet, or rack screws
1x power cord

4-40 standoffs and screws

1 PCB

at least 19.5" x 4" material for front panel (if building a 2U rack mount case).
will be smaller after cutting...

19" rack case:
front panel  19.0625 x 3.4375
back panel   17 x 3.25
box          17wide x 3.25high x 7.5deep