Status of all the boards, and qty working or expected to be working for each:

• 3 working LV Mixer RevA boards
• 3 working preamp RevA boards
• 1 working adapter board RevA board, 1 working adapter board RevB board, 1 should work after small surgery adapter board RevB
• 1 working HV RevA board, 1 working HV RevB board, 1 not working HV RevB board problem not identified
• 2 working filament supply RevB boards, 1 working filament supply RevA

What work would need to be done in the EDF:

• small surgery on adapter board mentioned above
• set boards in enclosures, For filament supply this also means setting up high current BJT on heat spreader
• try to salvage HV RevB board mentioned above
• make molex connectors mentioned below

Power supplies we expect our Chinese colleagues to provide:

• +5V fixed supply up to X Amps for inside ToF box
• -6V fixed supply up to X Amps for inside ToF box
• adjustable up to ~2V supply up to X Amps for LV Mixer
• HV supply up to 200V
• If the HV supply is adjustable and stable at 20V then no need for a LV supply, if not then an additional supply will be needed for the LV box adjustable up to 20V

Cabling we expect our Chinese colleagues to provide:

• DB9 cable connecting preamp to ToF box
• DB15 cable connecting ToF box to LV or HV box
• BNC connecting HV/LV to filament supply
• BNC to power supply for ~2v into supply for LV Mixer mentioned above
• BNC into preamp
• 2 BNC from filament supply to filament
• for fixed +5V, -6V, and HV/LV supplies into the ToF box I will make molex plugs with leads they can connect to how they see fit

Pricing for the enclosures (you did provide this for the FP express already):

Enclosure	Price($USD)
LV	135.54
HV	135.87
preamp	118.92
filament	164.53
ToF	127.97 + cuts
Total	682.83 + cuts

Rough estimate of additional work and cost to get from where we are to 4 sets of working electronics (installed + spare in China, ditto for here):

• 1 more preamp revA board needed ($120 run of 3 at oshpark), 1 set of parts $35
• 1 more LV Mixer revA board needed ($200 run of 3 at oshpark), 1 set of parts $70

How creative do we want to be? I know the quick board modifications to translate a RevA into a RevB if we want to avoid ordering another run of the following boards

• 1 Set of parts for Filament supply $100
• 1 or 2 sets of parts for HV board ~$90 per set, will take detailed inventory of what I have tonight
• 1 or 2 sets of parts for adapter board ~$60 per set will take detailed inventory of what I have tonight. I need to double check but if ElBat? lab can supply 3.3V then RevA will still work for adapter. If not, will have to order more RevB boards

For work I can get all boards assembled, modified and tested in a single week if I'm working in the EDF and don't hit any major roadblocks.

• How do we want to fit our boards into enclosures at ElBat? lab?

adding everything up above, $700 to $1000 rough estimate